Space

spacex-discloses-cause-of-starship-anomalies-as-it-clears-an-faa-hurdle

SpaceX discloses cause of Starship anomalies as it clears an FAA hurdle

Science, Space, spacex, starship / /

RUD —

“Several engines began shutting down before one engine failed energetically.”

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Starship launches on its second flight on November 18, 2023.

Enlarge / Starship launches on its second flight on November 18, 2023.

SpaceX

A little more than three months after the most recent launch of a Starship vehicle, which ended with both the booster and upper stage being lost in flight, the Federal Aviation Administration has closed its investigation of the mishap.

“SpaceX identified, and the FAA accepts, the root causes and 17 corrective actions documented in SpaceX’s mishap report,” the federal agency said in a statement issued Monday. “Prior to the next launch, SpaceX must implement all corrective actions and receive a license modification from the FAA that addresses all safety, environmental and other applicable regulatory requirements.”

SpaceX must still submit additional information to the FAA, which is responsible for the safety of people and property on the ground, before the agency completes its review of an application to launch Starship for a third time. The administrator for Commercial Space Transportation at the Federal Aviation Administration, Kelvin Coleman, said last week that early to mid-March is a reasonable timeline for the regulatory process to conclude.

A launch attempt is likely to follow soon after.

What went wrong

In conjunction with Monday’s announcement, SpaceX released details for the first time of what happened to cause the November 18 launch to go awry.

In this update, SpaceX noted that the Super Heavy first stage of the rocket performed nominally, with all 33 Raptor engines on this massive rocket igniting successfully. The booster then performed a full-duration burn to reach stage separation. At this point, the upper stage executed a successful “hot staging” maneuver in which the Starship stage separated from the booster while some of the booster’s engines were still firing.

For the Super Heavy booster, the next step was to perform a series of burns to make a soft landing in the Gulf of Mexico. As part of the initial burn, 13 of the rocket’s engines were intended to fire.

“During this burn, several engines began shutting down before one engine failed energetically, quickly cascading to a rapid unscheduled disassembly of the booster,” SpaceX said. “The vehicle breakup occurred more than three and a half minutes into the flight at an altitude of ~90 km over the Gulf of Mexico.”

The problem was subsequently linked to a problem with supplying liquid oxygen to the Raptor engines.

“The most likely root cause for the booster RUD was determined to be filter blockage where liquid oxygen is supplied to the engines, leading to a loss of inlet pressure in engine oxidizer turbopumps that eventually resulted in one engine failing in a way that resulted in loss of the vehicle,” the company stated. “SpaceX has since implemented hardware changes inside future booster oxidizer tanks to improve propellant filtration capabilities and refined operations to increase reliability.”

Starship vents

As Super Heavy was experiencing these problems, the six Raptor engines on the Starship upper stage were burning nominally and pushing the vehicle along a flight path intended to take it nearly two-thirds of the way around Earth before splashing down near Hawaii. However, at about seven minutes after liftoff, a large vent of liquid oxygen occurred. There was excess liquid oxygen on the vehicle, SpaceX said, to gather data representative of future payload deployment missions. It needed to be released before Starship splashed down.

“A leak in the aft section of the spacecraft that developed when the liquid oxygen vent was initiated resulted in a combustion event and subsequent fires that led to a loss of communication between the spacecraft’s flight computers,” the company said. “This resulted in a commanded shut down of all six engines prior to completion of the ascent burn, followed by the Autonomous Flight Safety System detecting a mission rule violation and activating the flight termination system, leading to vehicle breakup.”

At the time, the vehicle had reached an altitude of 150 km, well into outer space, and had achieved a velocity of about 24,000 km/h. This is just short of orbital velocity, which is 28,000 km/h.

In its statement, SpaceX said it was implementing changes to the Super Heavy and Starship stages to account for these issues. The company is also seeking to improve the overall performance of Starship, with the addition of a new electronic Thrust Vector Control system for Starship’s upper-stage Raptor engines and more rapid propellant loading operations prior to launch.

SpaceX has four Starships in complete, or nearly complete, build stages. Should the next flight go smoothly, the company could begin to launch the world’s largest rocket on a more frequent basis.

SpaceX discloses cause of Starship anomalies as it clears an FAA hurdle Read More »

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Odysseus has less than a day left on the Moon before it freezes to death

Odysseus lander, Science, Space / /

Phoning home —

So what are we to make of this? Is Odysseus a success or a failure?

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NASA's LRO found <em>Odysseus</em> on the Moon.” src=”https://cdn.arstechnica.net/wp-content/uploads/2024/02/odie1-800×454.jpg”></img><figcaption> <p><a data-height=Enlarge / NASA’s LRO found Odysseus on the Moon.

NASA/Goddard/Arizona State University

Time is running out for the historic Odysseus lander that made a soft touchdown on the Moon last Thursday evening.

In an update posted on Monday morning, the company that built the spacecraft, Intuitive Machines, said, “[W]e believe flight controllers will continue to communicate with Odysseus until Tuesday morning.” This is because the lander, which is tipped over on its side, will only be able to collect solar energy for a limited period of time.

Originally, the company had hoped to operate its privately developed lunar lander on the surface for a week or longer. But now, that will no longer be possible due to the limited ability of Odysseus to gather solar energy and remain powered on. As the Sun dips closer to the horizon, and with the two-week-long lunar night coming, the spacecraft will, effectively, freeze to death.

On its side

The shorter-than-anticipated lifetime is due to the lander’s position on the surface. On Friday, during a news conference, Intuitive Machines’ chief executive, Steve Altemus, said the company believed Odysseus had come down to the lunar surface in a vertical configuration, as anticipated.

However, for reasons that Altemus did not entirely explain, the lander came down a bit faster than anticipated—6 mph (2.7 m/s) instead of 2 mph (0.9 m/s). Still, this pace, about the same as a moderate walk, was within the tolerances of the vehicle’s landing legs and structures to withstand. The problem is that the vehicle also had a lateral motion of about 2 mph, when it was supposed to come straight down.

Thus, as the vehicle descended to the Moon, it is possible that one or more landing legs may have been snagged by the lunar surface before the vehicle touched down. “It might have fractured that landing gear and tipped over,” Altemus said.

Based on the information available, the vehicle is lying horizontal but somewhat elevated off the ground. Intuitive Machines knew this, Altemus said, because the solar panels on the sides of the vehicle were able to gather solar power. This meant the body of the vehicle had to be somewhat raised above the surface. It’s possible, therefore, that the top of the vehicle tipped over onto a small boulder.

Odysseus, has solar panels on its sides as well as at the top of the vehicle.” height=”653″ src=”https://cdn.arstechnica.net/wp-content/uploads/2023/10/JT3A6259-980×653.jpg” width=”980″>

Enlarge / The Nova-C lander, named Odysseus, has solar panels on its sides as well as at the top of the vehicle.

Lee Hutchinson

Altemus said on Friday that the company was attempting to orient a solar array at the top of the vehicle to gather sunlight in addition to the panels on its side.

It seems like this operation was unsuccessful, as the lander’s solar arrays will only be able to gather enough energy to operate through Tuesday morning.

Data desired

Intuitive Machines received a valuable assist from a NASA spacecraft orbiting the Moon, the Lunar Reconnaissance Orbiter, which flew over the landing site this weekend. From this imagery, NASA was able to determine a precise landing spot for the vehicle: 80.13 degrees south latitude, 1.44 degrees east longitude, at an elevation of 8,461 feet (2,579 meters).

Notably, the spacecraft landed in a crater where the terrain was sloped at 12 degrees, which may have contributed to its tipping over.

During the news conference on Friday, Altemus and the company’s chief technology officer, Tim Crain, said they expected to be able to conduct most of the science missions on board the lander despite its sideways configuration. “Best guess, we expect to get most of the mission data down once we stabilize our configuration,” Crain said.

However, at the time, the company was still planning to operate the lander through this week. It is unclear that there will be enough time to get all of that data down between now and Tuesday morning. The company did not provide any updates on this on Monday.

A success, or no?

Another critical question is whether operators will be able to download images of Odysseus on the surface of the Moon. To date, Intuitive Machines has not published photos from the Moon’s surface. There remains some hope, however, that a CubeSat camera developed by students at Embry Riddle, EagleCam, will be deployed and activated before Odysseus‘ power runs out.

So what are we to make of this? Is Odysseus a success or a failure?

The mission has achieved some notable firsts. No privately developed spacecraft has ever made a soft landing on the Moon before, and it is important that Intuitive Machines has been able to maintain contact with the lander for several days. And at 80 degrees south, no spacecraft has ever made a soft landing so close to a lunar pole.

Although Intuitive Machines is not going to achieve all of the mission’s objectives, getting down to the Moon in one piece was, unquestionably, the achievement by which Odysseus and its builders should be judged.

Odysseus has less than a day left on the Moon before it freezes to death Read More »

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Daily Telescope: Finally, we’ve found the core of a famous supernova

daily telescope, Science, Space / /

A dense subject —

In the astronomy community SN 1987A has somewhat legendary status.

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Webb has observed the best evidence yet for emission from a neutron star at the site of Supernova 1987A.

Enlarge / Webb has observed the best evidence yet for emission from a neutron star at the site of Supernova 1987A.

NASA, ESA, CSA, STScI, et. al.

Welcome to the Daily Telescope. There is a little too much darkness in this world and not enough light, a little too much pseudoscience and not enough science. We’ll let other publications offer you a daily horoscope. At Ars Technica, we’re going to take a different route, finding inspiration from very real images of a universe that is filled with stars and wonder.

Good morning. It’s February 26, and today’s image highlights the core of a (relatively) nearby supernova.

In the astronomy community, SN 1987A has somewhat legendary status. The first observable light from this exploding star in the Large Magellanic Cloud reached Earth in February, almost 37 years ago to the day. It was the first supernova that astronomers were able to observe and study with modern telescopes. It was still discussed in reverent terms a few years later when I was an undergraduate student studying astronomy at the University of Texas.

One of the enduring mysteries of the supernova is that astronomers have been unable to find its collapsed core, where they would expect to see a neutron star—an ultra-dense object that results from the supernova explosion of a massive star. In recent years, ground-based telescopes have found hints of this collapsed core, but now the James Webb Space Telescope has found emission lines that almost certainly must come from a newly born neutron star.

The astronomical details can be found here. It’s a nice validation of our understanding about supernovae.

I would also like to acknowledge that the Daily Telescope has been anything but “daily” of late. This is due to a confluence of several factors, including a lot of travel and work on other projects, including four features in the last month or so. I’ve had to put some things on the back-burner. I don’t want to stop producing these articles, but I also can’t commit to writing one every day. Maybe it should be renamed? For now, I’m just going to try to do my best. I appreciate those who have written to ask where the Daily Telescope has been—well, all of you but the person who wrote a nasty note.

Source: NASA, ESA, CSA, STScI, et. al.

Do you want to submit a photo for the Daily Telescope? Reach out and say hello.

Daily Telescope: Finally, we’ve found the core of a famous supernova Read More »

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Rocket Report: Starliner launch preps; Indian rocket engine human-rated

ariane 6, Astroscale, blue origin, Boeing, Commercial space, rocket report, Science, Space, spacex, starliner, starship / /

Cape-a-palooza —

The Bahamian government and SpaceX signed an agreement for Falcon 9 booster landings.

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The first stage of United Launch Alliance's Atlas V rocket was lifted onto its launch platform this week in preparation for an April liftoff with two NASA astronauts on Boeing's Starliner Crew Flight Test.

Enlarge / The first stage of United Launch Alliance’s Atlas V rocket was lifted onto its launch platform this week in preparation for an April liftoff with two NASA astronauts on Boeing’s Starliner Crew Flight Test.

United Launch Alliance

Welcome to Edition 6.32 of the Rocket Report! I’m writing the report again this week as Eric Berger is in Washington, DC, to receive a well-earned honor, the 2024 Excellence in Commercial Space Journalism Award from the Commercial Spaceflight Federation. Cape Canaveral is the world’s busiest spaceport, and this week, three leading US launch companies were active there. SpaceX launched another Falcon 9 rocket, and a few miles away, Blue Origin raised a New Glenn rocket on its launch pad for long-awaited ground testing. Nearby, United Launch Alliance began assembling an Atlas V rocket for the first crew launch of Boeing’s Starliner spacecraft in April. 2024 is shaping up to be a truly exciting year for the spaceflight community.

As always, we welcome reader submissions, and if you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Astroscale inspector satellite launched by Rocket Lab. Astroscale, a well-capitalized Japanese startup, has launched a small satellite to do something that has never been done in space, Ars reports. This new spacecraft, delivered into orbit on February 18 by Rocket Lab, will approach a defunct upper stage from a Japanese H-IIA rocket that has been circling Earth for more than 15 years. Over the next few months, the satellite will try to move within arm’s reach of the rocket, taking pictures and performing complicated maneuvers to move around the bus-size H-IIA upper stage as it moves around the planet at nearly 5 miles per second (7.6 km/s).

This is a first … Astroscale’s ADRAS-J mission is the first satellite designed to approach and inspect a piece of space junk in orbit. This is a public-private partnership between Astroscale and the Japanese space agency. Of course, space agencies and commercial companies have demonstrated rendezvous operations in orbit for decades. The difference here is the H-IIA rocket is uncontrolled, likely spinning and in a slow tumble, and was never designed to accommodate any visitors. Japan left it in orbit in January 2009 following the launch of a climate monitoring satellite and didn’t look back. ADRAS-J is a technology demonstration that could pave the way for a follow-on mission to actually link up with this H-IIA rocket and remove it from orbit. Astroscale eventually wants to use these technologies for satellite servicing, refueling, and further debris removal missions. (submitted by Ken the Bin and Jay500001)

Software error blamed for Firefly launch malfunction. Firefly Aerospace released an update Tuesday on an investigation into an upper stage malfunction on the company’s Alpha rocket in December. The investigation team, consisting of membership from Firefly, the Federal Aviation Administration, the National Transportation Safety Board, Lockheed Martin, NASA, and the US Space Force, determined a software error in the rocket’s guidance, navigation, and control software algorithm ultimately caused the Alpha rocket to release its payload into a lower-than-planned orbit following a launch from California.

Upper stage woes… The software error prevented the rocket from sending the “necessary pulse commands” to control thrusters on the upper stage before its main engine was supposed to reignite. This second burn by the upper stage was supposed to circularize the rocket’s orbit, but it didn’t happen as planned. Still, the Alpha rocket safely released its commercial satellite payload for Lockheed Martin. Although the lower orbit caused the satellite to reenter the atmosphere earlier this month, Lockheed Martin said it was able to achieve many of the objectives of the technology demonstration mission, which focused on testing an electronically steered antenna. This was the fourth launch of an Alpha rocket, and two of them have suffered from upper stage malfunctions during engine restart attempts. Firefly says it is preparing the next Alpha rocket to fly “in the coming months.” (submitted by Ken the Bin)

The easiest way to keep up with Eric Berger’s space reporting is to sign up for his newsletter, we’ll collect his stories in your inbox.

A good fundraising round for Gilmour Space. Australian startup Gilmour Space Technologies has raised $55 million Australian dollars ($36 million) in a Series D funding round announced Monday, Space News reports. The funding supports the small launch vehicle startup’s campaign to manufacture, test, and begin launching rockets and satellites from the Bowen Orbital Spaceport in North Queensland. Gilmour Space, founded in 2012, is developing a three-stage rocket called Eris. The first Eris test flight is expected “in the coming months, pending launch approvals from the Australian Space Agency,” according to the Gilmour Space news release.

Launching from down under… Gilmour Space is aiming to launch the first Australian-built rocket into orbit later this year. The Eris rocket is powered by hybrid engines, and Gilmour says it is capable of delivering about 670 pounds (305 kilograms) of payload mass into a Sun-synchronous orbit. The $36 million fundraising round announced this week follows a $46 million fundraising round in 2021. According to the Australian Broadcasting Corporation, Gilmour Space is aiming for the first flight of Eris in April, and this latest fundraising should give the company enough money to mount four test flights. (submitted by Ken the Bin)

Rocket Report: Starliner launch preps; Indian rocket engine human-rated Read More »

a-little-us-company-makes-history-by-landing-on-the-moon

A little US company makes history by landing on the Moon

intuitive machines, Odysseus lander, Science, Space / /
Odysseus passes over the near side of the Moon following lunar orbit insertion on February 21.

Enlarge / Odysseus passes over the near side of the Moon following lunar orbit insertion on February 21.

Intuitive Machines

For the first time in more than half a century, a US-built spacecraft has made a soft landing on the Moon.

There was high drama and plenty of intrigue on Thursday evening as Intuitive Machines attempted to land its Odysseus spacecraft in a small crater not all that far from the south pole of the Moon. About 20 minutes after touchdown, NASA declared success, but some questions remained about the health of the lander and its orientation. Why? Because while Odysseus was phoning home, its signal was weak.

But after what the spacecraft and its developer, Houston-based Intuitive Machines, went through earlier on Thursday, it was a miracle that Odysseus made it at all.

Losing your way

The landing attempt was delayed by about two hours after mission controllers had to send a hastily cobbled together, last-minute software patch up to the lander while it was still in orbit around the Moon. Patching your spacecraft’s software shortly before it makes its most critical move is just about the last thing a vehicle operator wants to do. But Intuitive Machines was desperate.

Earlier on Thursday, the company realized that its navigation lasers and cameras were not operational. These rangefinders are essential for two functions during landing: terrain-relative navigation and hazard-relative navigation. These two modes help the flight computer on Odysseus to determine precisely where it is during descent—by snapping lots of images and comparing them to known Moon topography—and to identify hazards below, such as boulders, in order to find a safe landing site.

Without these rangefinders, Odysseus was going to faceplant into the Moon. Fortunately, this mission carried a bunch of science payloads. As part of its commercial lunar program, NASA is paying about $118 million for the delivery of six scientific payloads to the lunar surface.

One of these payloads just happened to be the Navigation Doppler Lidar experiment, a 15-kg package that contains three small cameras. With this NDL payload, NASA sought to test out technologies that might be used to improve navigation systems in future landing attempts on the Moon.

The only chance Odysseus had was if it could somehow tap into two of the NDL experiment’s three cameras and use one for terrain-relative navigation and the other for hazard-relative navigation. So, some software was hastily written and shipped up to the lander. This was some true MacGyver stuff. But would it work?

A little US company makes history by landing on the Moon Read More »

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Jeff Bezos’ New Glenn rocket finally makes an appearance on the launch pad

blue origin, cape canaveral, Commercial space, Jeff Bezos, launch, new glenn, Science, Space / /

Integrated —

Blue Origin plans a tanking test at Cape Canaveral, then a hotfire on the launch pad.

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Dave Limp, Blue Origin's new CEO, and founder Jeff Bezos observe the New Glenn rocket on its launch pad Wednesday at Cape Canaveral Space Force Station, Florida.

Enlarge / Dave Limp, Blue Origin’s new CEO, and founder Jeff Bezos observe the New Glenn rocket on its launch pad Wednesday at Cape Canaveral Space Force Station, Florida.

Anyone who has tracked the development of Blue Origin’s New Glenn rocket has been waiting for signs of progress from the usually secretive space company. On Wednesday, engineers rolled a full-scale New Glenn rocket, partially made up of flight hardware, to a launch pad in Florida for ground testing.

The first New Glenn launch is almost certainly at least six months away, and it may not even happen this year. In the last few years, observers inside and outside the space industry have become accustomed to the nearly annual ritual of another New Glenn launch delay. New Glenn’s inaugural flight has been delayed from 2020 until 2021, then 2022, and for now, is slated for later this year.

But it feels different now. Blue Origin is obviously moving closer to finally launching a rocket into orbit.

Scaling up

Jeff Bezos, Blue Origin’s founder, was at Cape Canaveral to see his giant new rocket on the launch pad for the first time. “Just incredible to see New Glenn on the pad at LC-36,” Bezos wrote on Instagram. “Big year ahead. Let’s go!”

Starting late last year, Blue Origin officials doubled down on the company’s plans to launch the first New Glenn test flight by the end of 2024. This messaging coincided with the arrival of Dave Limp as Blue Origin’s chief executive, replacing Bob Smith, whose seven-year tenure included the first human suborbital flights on the company’s New Shepard rocket. Smith’s time as CEO was also marked by repeated delays on the New Glenn rocket.

Limp is pushing Blue Origin to move faster, and it seems the company’s employees got the memo. In December, the company rolled elements of the New Glenn rocket from its factory just outside the gates of NASA’s Kennedy Space Center to a final assembly hangar located about nine miles away at Cape Canaveral Space Force Station.

Inside that building, technicians connected the first stage booster, which is flight hardware, with an upper stage Blue Origin has set aside for ground testing. The final piece of the rocket to be added was a 23-foot-diameter (7-meter) payload fairing, the uppermost section of New Glenn designed to protect spacecraft during the initial phase of launch.

Last week, Blue Origin lifted a structure simulating the rocket’s empty mass vertical using the transporter-erector arm at Launch Complex 36 (LC-36), a former Atlas launch pad Blue Origin took over in 2015. This was a final validation of the lifting arm at LC-36 before Blue Origin put a real, or mostly real, rocket on the pad.

The first full-scale New Glenn rocket rolls out at Launch Complex 36.

Enlarge / The first full-scale New Glenn rocket rolls out at Launch Complex 36.

On Wednesday, ground crews rolled a fully assembled New Glenn rocket out of the hangar at LC-36 and up the ramp to the launch mount. Then, the hydraulic lifting arm raised the two-stage launcher vertically. At more than 320 feet (98 meters) tall, New Glenn is one of the largest rockets ever seen on Florida’s Space Coast, roughly the same height as NASA’s Space Launch System rocket and nearly as tall as the Saturn V used in the Apollo program.

“The upending is one in a series of major manufacturing and integrated test milestones in preparation for New Glenn’s first launch later this year,” Blue Origin officials wrote in an update on Wednesday. “The test campaign enables our teams to practice, validate, and increase proficiency in vehicle integration, transport, ground support, and launch operations.”

New Glenn can haul nearly 100,000 pounds (45 metric tons) of payload into low-Earth orbit. For low-altitude orbits, this is a weight class above the uppermost capability of United Launch Alliance’s Vulcan rocket or SpaceX’s Falcon 9 rocket but below SpaceX’s Falcon Heavy. Blue Origin also plans to use the New Glenn rocket to launch lunar landers to the Moon for NASA’s Artemis program.

New Glenn’s first stage booster is reusable, and is designed to land on an offshore barge in the Atlantic Ocean, which will bring it back to the coast, similar to the way SpaceX recovers its Falcon 9 booster.

“The fairing is large enough to hold three school buses,” Blue Origin said. “Its reusable first stage aims for a minimum of 25 missions and will land on a sea-based platform located roughly 620 miles (1,000 kilometers) downrange.”

Blue Origin is now 24 years old and employs around 11,000 people at locations around the country, with major locations in Washington, Texas, Florida, and Alabama. While the company has not yet launched anything into orbit, Blue Origin is working on a wide range of projects aside from rockets, including cargo and human-rated lunar landers for NASA and a space tug that could move payloads into different orbits for the US military. New Glenn is crucial for all of these plans.

Blue Origin’s latest progress with New Glenn comes as Bezos’s space company appears to be on the verge of buying United Launch Alliance from Boeing and Lockheed Martin.

Jeff Bezos’ New Glenn rocket finally makes an appearance on the launch pad Read More »

test-flights-on-tap-for-space-perspective’s-luxury-high-altitude-balloon

Test flights on tap for Space Perspective’s luxury high-altitude balloon

balloon, Commercial space, Science, Space, space perspective / /
Space Perspective's first test capsule, <em>Excelsior</em>, has a diameter of approximately 16 feet (4.9 meters).” src=”https://cdn.arstechnica.net/wp-content/uploads/2024/02/Space_Perspective_Capsule_Front_on_Sunset_Landscape-800×533.jpg”></img><figcaption> <p><a data-height=Enlarge / Space Perspective’s first test capsule, Excelsior, has a diameter of approximately 16 feet (4.9 meters).

Space Perspective could begin test flights of its privately owned capsule suspended under a high-altitude balloon within the next couple of months, the company’s co-founder told Ars this week.

Florida-based Space Perspective released photos of its first completed test capsule Tuesday. The company will use this pressurized capsule, called Excelsior, for a series of test flights this year over the Atlantic Ocean just off the coast of Cape Canaveral. Taber MacCallum, Space Perspective’s co-founder and chief technology officer, said employees have also finished fabricating the giant balloon that will lift the test capsule into the upper atmosphere for the first test flight.

The final piece of the puzzle is a ship, named Marine Spaceport Voyager, that Space Perspective will use to launch the balloon and capsule. This vessel is due to depart an outfitting facility in Louisiana in the next few weeks for a trip to Port Canaveral, Florida, where Space Perspective will load aboard the capsule and balloon. Then, perhaps in four to six weeks, ground teams will be ready for the system’s first test flight, according to MacCallum.

But this is a test program, and there could be delays, MacCallum said. In the meantime, Space Perspective will start building a second capsule for human test flights.

“We’ll do a series of unmanned tests with this capsule,” he said. “In theory, we could fly people in this capsule. It’s designed that way, and it has all of the systems set up for human flight. But our planning assumes that trailing on what we learn from this capsule, we build another capsule that will be our first human flight capsule. And this will remain an unmanned test capsule.”

Soaring to the edge of “space”

These tests are a prelude to Space Perspective’s plans for regular commercial flights carrying paying customers to 100,000 feet (about 30 kilometers), roughly three times higher than the cruising altitude of a typical commercial airliner. From 100,000 feet, Space Perspective’s clients will see panoramic views of the ground and ocean far below, and the sky will be black, with the capsule flying above 99 percent of Earth’s atmosphere.

Founded in 2019, Space Perspective says on its website it is “driven by a desire to share the transformative power of space travel with as many people as possible.” In reality, the company will give customers an experience similar to spaceflight, with a few significant differences.

Essentially, passengers on Space Perspective’s high-altitude balloon will get a view the company says is similar to what a passenger might see on a suborbital spacecraft from Blue Origin or Virgin Galactic. But Space Perspective’s vehicle won’t subject customers to any high G-forces or the risks of rocket flight. The balloon passengers also won’t float in microgravity. And it will max out at 30 kilometers, well short of the 80-kilometer boundary of space recognized by the US government or the 100-kilometer Kármán line.

Still, the view from 30 kilometers must be tremendous. “You’ll see essentially all of Florida,” MacCallum said. “We’re also looking at flying sort of across the southern tip of Florida, so you’d see Cuba, the Bahamas, essentially all of Florida. So amazing views.”

Test flights on tap for Space Perspective’s luxury high-altitude balloon Read More »

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Blue Origin has emerged as the likely buyer for United Launch Alliance

blue origin, Science, Space, ula / /

Blue-LA —

Pairing of two launch companies could provide more robust competition to SpaceX.

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The first Vulcan rocket fires off its launch pad in Florida in January 2024.

Enlarge / The first Vulcan rocket fires off its launch pad in Florida in January 2024.

United Launch Alliance

The rocket company owned by Amazon founder Jeff Bezos, Blue Origin, has emerged as the sole finalist to buy United Launch Alliance.

The sale is not official, and nothing has been formally announced. The co-owners of United Launch Alliance (ULA), Lockheed Martin and Boeing, have yet to comment publicly on the sale of the company, which, until the rise of SpaceX, was the sole major launch provider in the United States. They declined again on Wednesday.

“Consistent with our corporate practice, Boeing doesn’t comment on potential market rumors or speculation,” a Boeing spokesperson said.

Blue Origin did not return a request for comment.

However, two sources told Ars that Blue Origin is nearing the purchase of ULA. The sources said they have not personally seen any signed agreements, but they expect the sale to be announced within a month or two.

In the 11 months since Ars first reported that ULA was up for sale, the company’s potential buyer has become a topic of widespread speculation and interest. In November, Ars reported that Blue Origin was one of three potential buyers. In December, the Wall Street Journal confirmed that the competition was narrowing and said Blue Origin and a large private equity firm, Cerberus, were the two most likely bidders.

Bezos stock sales

Some recent related activity suggests the sale is imminent. A handful of senior officials at ULA are seeking new jobs. Additionally, Bezos recently sold $2.4 billion in Amazon stock and, in securities filings, disclosed that he could sell an additional $8 billion to $9 billion in stock over the next 12 months. Although there are no confirmed values, there has been speculation in the launch industry that ULA may be sold for $2 billion to $3 billion.

ULA was created in 2006 through a merger of Boeing’s Delta rocket program and Lockheed Martin’s Atlas launcher family. Since then, ULA has been a profitable enterprise for both aerospace giants, thanks to military launch contracts and (until recently) large annual subsidies from the US Department of Defense to maintain “launch readiness” for national security missions.

During the last decade, however, ULA’s launch dominance has first been challenged and then supplanted by the rise of SpaceX and its less expensive and highly reliable Falcon 9 rocket. Tory Bruno, who became ULA’s chief executive in 2014, has slashed employee headcount and taken other steps to control costs, such as closing infrequently used launch pads.

One of the key questions about the acquisition is what will happen to Bruno, who has demonstrated the ability to run a launch company with an excellent record of success, manage the development of a large new launch vehicle—the Vulcan rocket—and is willing to compete with SpaceX. It is unclear what role he would have in an acquisition by Blue Origin. Sources indicate that Bruno has a good relationship with Bezos.

Will the merger work?

There is considerable overlap in the launch businesses of ULA and Blue Origin. Vulcan and Blue Origin’s own large rocket, New Glenn, will both compete for government launch contracts, and both use the BE-4 rocket engines developed by Blue Origin. However, some synergies could make a combined Blue Origin-ULA a more formidable launch competitor to SpaceX.

ULA has operational launch pads at Cape Canaveral Space Force Station in Florida and Vandenberg Space Force Base in California. It has large integration facilities at both locations. Additionally, it has an experienced launch team with a long track record of success, which could be useful to Blue Origin as it seeks to launch the New Glenn rocket later this year.

Finally, ULA has some expertise in the storage of cryogenic fuels in space. For a time, before its co-owners shut down the program, ULA was developing an innovative upper stage known as ACES (Advanced Cryogenic Evolved Stage). This upper stage was intended to be reusable and powered by liquid oxygen and liquid hydrogen. These are the kinds of technologies that Blue Origin will need as it develops a lunar lander and tug spacecraft that uses these same propellants and requires them to be stored in space for long periods of time.

Blue Origin has emerged as the likely buyer for United Launch Alliance Read More »

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Before snagging a chunk of space junk, Astroscale must first catch up to one

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This artist's illustration released by Astroscale shows the ADRAS-J spacecraft (left) approaching the defunct upper stage from a Japanese H-IIA rocket.

Enlarge / This artist’s illustration released by Astroscale shows the ADRAS-J spacecraft (left) approaching the defunct upper stage from a Japanese H-IIA rocket.

Astroscale, a well-capitalized Japanese startup, is preparing a small satellite to do something that has never been done in space.

This new spacecraft, delivered into orbit Sunday by Rocket Lab, will approach a defunct upper stage from a Japanese H-IIA rocket that has been circling Earth for more than 15 years. Over the next few months, the satellite will try to move within arm’s reach of the rocket, taking pictures and performing complicated maneuvers to move around the bus-size H-IIA upper stage as it moves around the planet at nearly 5 miles per second (7.6 km/s).

These maneuvers are complex, but they’re nothing new for spacecraft visiting the International Space Station. Military satellites from the United States, Russia, and China also have capabilities for rendezvous and proximity operations (RPO), but as far as we know, these spacecraft have only maneuvered in ultra-close range around so-called “cooperative” objects designed to receive them.

The difference here is the H-IIA rocket is uncontrolled, likely spinning and in a slow tumble, and was never designed to accommodate any visitors. Japan left it in orbit in January 2009 following the launch of a climate monitoring satellite and didn’t look back.

That was the case, at least, until a few years ago, when the Japan Aerospace Exploration Agency (JAXA) partnered with Astroscale in a public-private partnership to demonstrate capabilities the private sector could use to eventually remove large pieces of space debris littering low-Earth orbit. The same robotic technologies could also apply to satellite servicing or refueling missions.

“We are putting this debris removal by robotic technology as one of our main technology development areas because safely approaching an object, and also observing the object and capturing the object, is basically a common technology for any on-orbit servicing,” said Eddie Kato, president and managing director of Astroscale Japan.

In hot pursuit

This mission is called ADRAS-J, short for Active Debris Removal by Astroscale-Japan. “This mission entails the first ever approach of actual space debris and will be a monumental step toward a more sustainable future in space,” Mike Lindsay, Astroscale’s chief technology officer, posted on X.

The ADRAS-J spacecraft, built in-house at Astroscale’s Tokyo headquarters, is about the size of a kitchen oven and weighs roughly 330 pounds (150 kilograms) fully fueled. The satellite launched from New Zealand at 9: 52 am EST (1452 UTC) Sunday aboard an Electron rocket provided by Rocket Lab. About an hour after liftoff, ADRAS-J deployed from the Electron’s kick stage into an on-target polar orbit reaching an altitude of 370 miles (600 kilometers) at its highest point.

The liftoff from Rocket Lab’s spaceport in New Zealand was timed to allow ADRAS-J to launch into the same orbital plane as its objective—the H-IIA upper stage. Astroscale reported the spacecraft was healthy after Sunday’s launch. In a pre-launch interview, Kato said ADRAS-J will begin its pursuit of the spent H-IIA rocket in a couple of weeks, once ground teams complete initial checkouts of the spacecraft.

ADRAS-J will fire thrusters to match orbits with the H-IIA rocket, and as soon as next month, it could be flying within about 300 feet (100 meters) of the abandoned upper stage. Astroscale engineers will initially rely on ground-based tracking data to pinpoint the H-IIA’s location in space. Once in closer range, ADRAS-J will use visible and infrared cameras, along with laser ranging sensors, to transition to relative navigation mode. These sensors will measure the distance, closing rate, and orientation of the upper stage.

Astroscale officials view the switch from relying on ground tracking data to onboard relative navigation sensors as a crucial moment for the ADRAS-J mission. ADRAS-J will circle the rocket to assess its spin rate, spin axis, and the condition of its structure. This is the crux of the challenge for ADRAS-J because the rocket is unpowered and therefore unable to hold position. The upper stage also lacks laser reflectors and targets that would aid an approaching spacecraft.

This will mark the conclusion of the JAXA-supported portion of the ADRAS-J mission. If everything is working as planned, the spacecraft could move closer to the rocket to further validate Astroscale’s sensor suite and automated navigation and guidance algorithms. This will allow the company’s engineers to gather data for a proposed follow-on mission to actually go up and grab onto the same H-IIA upper stage and remove it from orbit.

“We are targeting to go closer, maybe 1 to 2 meters away from the object. Why? Because the next mission will be to really capture the H-IIA launch vehicle,” Kato told Ars last week. “In order to safely approach to a range where a robotic arm is able to be extended, it’s probably like 1.5 to 2 meters away from the object. We want to demonstrate up to that point through this ADRAS-J mission. Then on the next mission, called ADRAS-J2, we are actually equipping the robotic arm and capturing the H-IIA launch vehicle.”

Before snagging a chunk of space junk, Astroscale must first catch up to one Read More »

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New app always points to the supermassive black hole at the center of our galaxy

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the final frontier —

iPhone compass app made with AI assistance locates the heart of the Milky Way.

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A photo of Galactic Compass running on an iPhone.

Enlarge / A photo of Galactic Compass running on an iPhone.

Matt Webb / Getty Images

On Thursday, designer Matt Webb unveiled a new iPhone app called Galactic Compass, which always points to the center of the Milky Way galaxy—no matter where Earth is positioned on our journey through the stars. The app is free and available now on the App Store.

While using Galactic Compass, you set your iPhone on a level surface, and a big green arrow on the screen points the way to the Galactic Center, which is the rotational core of the spiral galaxy all of us live in. In that center is a supermassive black hole known as Sagittarius A*, a celestial body from which no matter or light can escape. (So, in a way, the app is telling us what we should avoid.)

But truthfully, the location of the galactic core at any given time isn’t exactly useful, practical knowledge—at least for people who aren’t James Tiberius Kirk in Star Trek V. But it may inspire a sense of awe about our place in the cosmos.

Screenshots of Galactic Compass in action, captured by Ars Technica in a secret location.

Enlarge / Screenshots of Galactic Compass in action, captured by Ars Technica in a secret location.

Benj Edwards / Getty Images

“It is astoundingly grounding to always have a feeling of the direction of the center of the galaxy,” Webb told Ars Technica. “Your perspective flips. To begin with, it feels arbitrary. The middle of the Milky Way seems to fly all over the sky, as the Earth turns and moves in its orbit.”

Webb’s journey to creating Galactic Compass began a decade ago as an offshoot of his love for casual astronomy. “About 10 years ago, I taught myself how to point to the center of the galaxy,” Webb said. “I lived in an apartment where I had a great view of the stars, so I was using augmented reality apps to identify them, and I gradually learned my way around the sky.”

While Webb initially used an astronomy app to help locate the Galactic Center, he eventually taught himself how to always find it. He described visualizing himself on the surface of the Earth as it spins and tilts, understanding the ecliptic as a line across the sky and recognizing the center of the galaxy as an invisible point moving predictably through the constellation Sagittarius, which lies on the ecliptic line. By visualizing Earth’s orbit over the year and determining his orientation in space, he was able to point in the right direction, refining his ability through daily practice and comparison with an augmented reality app.

With a little help from AI

Our galaxy, the Milky Way, is thought to look similar to Andromeda (seen here) if you could see it from a distance. But since we're inside the galaxy, all we can see is the edge of the galactic plane.

Enlarge / Our galaxy, the Milky Way, is thought to look similar to Andromeda (seen here) if you could see it from a distance. But since we’re inside the galaxy, all we can see is the edge of the galactic plane.

Getty Images

In 2021, Webb imagined turning his ability into an app that would help take everyone on the same journey, showing a compass that points toward the galactic center instead of Earth’s magnetic north. “But I can’t write apps,” he said. “I’m a decent enough engineer, and an amateur designer, but I’ve never figured out native apps.”

That’s where ChatGPT comes in, transforming Webb’s vision into reality. With the AI assistant as his coding partner, Webb progressed step by step, crafting a simple app interface and integrating complex calculations for locating the galactic center (which involves calculating the user’s azimuth and altitude).

Still, coding with ChatGPT has its limitations. “ChatGPT is super smart, but it’s not embodied like a human, so it falls down on doing the 3D calculations,” he says. “I had to learn a lot about quaternions, which are a technique for combining 3D rotations, and even then, it’s not perfect. The app needs to be held flat to work simply because my math breaks down when the phone is upright! I’ll fix this in future versions,” Webb said.

Webb is no stranger to ChatGPT-powered creations that are more fun than practical. Last month, he launched a Kickstarter for an AI-rhyming poetry clock called the Poem/1. With his design studio, Acts Not Facts, Webb says he uses “whimsy and play to discover the possibilities in new technology.”

Whimsical or not, Webb insists that Galactic Compass can help us ponder our place in the vast universe, and he’s proud that it recently peaked at #87 in the Travel chart for the US App Store. In this case, though, it’s spaceship Earth that is traveling the galaxy while every living human comes along for the ride.

“Once you can follow it, you start to see the galactic center as the true fixed point, and we’re the ones whizzing and spinning. There it remains, the supermassive black hole at the center of our galaxy, Sagittarius A*, steady as a rock, eternal. We go about our days; it’s always there.”

New app always points to the supermassive black hole at the center of our galaxy Read More »

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SpaceX wants to take over a Florida launch pad from rival ULA

cape canaveral, Commercial space, launch, Science, slc-37, Space, spacex, starship, united launch alliance, US Space Force / /

First step —

SpaceX now plans at least four Starship launch pads, two in Texas and two in Florida.

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SpaceX's fully-stacked Starship rocket and Super Heavy booster on a launch pad in South Texas.

Enlarge / SpaceX’s fully-stacked Starship rocket and Super Heavy booster on a launch pad in South Texas.

One of the largest launch pads at Cape Canaveral Space Force Station will become vacant later this year after the final flight of United Launch Alliance’s Delta IV Heavy rocket. SpaceX is looking to make the sprawling facility a new home for the Starship launch vehicle.

The environmental review for SpaceX’s proposal to take over Space Launch Complex 37 (SLC-37) at Cape Canaveral is getting underway now, with three in-person public meetings and one virtual meeting scheduled for March to collect comments from local residents, according to a new website describing the plan.

Then federal agencies, led by the Department of the Air Force, will develop an environmental impact statement to evaluate how Starship launch and landing operations will affect the land, air, and water around SLC-37, which sits on Space Force property on the Atlantic coastline.

Environmental studies for rocket launch facilities typically take more than a year, so it will be a while before any major construction begins to convert SLC-37 for Starship launches. In this case, federal officials anticipate publishing a draft environmental impact statement by December, then a final report by October 2025.

More immediately, ULA still has one more Delta IV Heavy rocket to launch from SLC-37 in March with a classified spy satellite for the National Reconnaissance Office. Once that launch is complete, ULA will wind down operations at SLC-37, and eventually turn over the facility back to the Space Force, which will look for a new tenant. For several months, industry sources have pointed to SpaceX as the leading contender to take over SLC-37 after ULA is finished with the launch pad.

But that’s not quite a done deal yet. Last year, a senior official at ULA told Ars on background that the company was also interested in maintaining a presence at SLC-37.

ULA’s new Vulcan rocket, which debuted last month and will replace the Delta IV and Atlas V launch vehicles, uses a different launch pad a few miles up the coast from SLC-37. ULA is upgrading and expanding its ground facilities at Cape Canaveral to ramp up the Vulcan launch cadence, and the ULA official told Ars the company may want to continue using a rocket processing hangar just south of the Delta IV launch pad for storage and horizontal processing of Vulcan rockets.

Details are scarce about everything SpaceX wants to do with SLC-37, but officials wrote on the environmental review website that SpaceX would “modify, reuse, or demolish the existing SLC-37 infrastructure to support Starship-Super Heavy launch and landing operations.”

This aerial view shows a United Launch Alliance Delta IV Heavy rocket awaiting liftoff from Space Launch Complex 37 at Cape Canaveral Space Force Station, Florida.

Enlarge / This aerial view shows a United Launch Alliance Delta IV Heavy rocket awaiting liftoff from Space Launch Complex 37 at Cape Canaveral Space Force Station, Florida.

The history of SLC-37 dates back to the 1960s, when NASA used the site for eight flights of the Saturn I and Saturn IB rockets to prepare for the Apollo program. The facility sat dormant for 30 years until Boeing moved in to ready SLC-37 for the Delta IV rocket, which has now flown 34 times from SLC-37. The launch pad currently includes a 330-foot-tall (100-meter) mobile gantry, a fixed erector, a fixed umbilical tower, and a flame trench for Delta IV missions.

Starship, the world’s largest rocket, would not need any of that that infrastructure, so if SpaceX takes over the pad, the facility will likely undergo extensive demolition and construction.

If SpaceX isn’t cleared to use SLC-37, the company could build a brand new launch pad designated Space Launch Complex 50. If this is the path SpaceX takes, SLC-50 would be built on undeveloped land north of SLC-37 and south of SpaceX’s primary launch pad for the Falcon 9 rocket at Space Launch Complex 40.

Goodbye to LC-49, hello to SLC-37

SpaceX’s interest in setting up shop at SLC-37 shows the company is getting serious about developing a second base for Starship on Florida’s Space Coast. In 2022, SpaceX constructed a launch tower and launch mount for Starship at Launch Complex 39A (LC-39A), located at NASA’s Kennedy Space Center. But the company made little progress there last year as teams focused on Starship test flights from South Texas.

Elon Musk, SpaceX’s founder and CEO, says Starship is the rocket that will make possible his dream of building a settlement on Mars. He has also touted Starship as a vehicle for point-to-point travel on Earth. Both stages of Starship are designed to be fully and rapidly reusable, with the Super Heavy booster and Starship upper stage returning to Earth for propulsive landings. Starship launch pads will double as landing pads.

Before any of those dreams are realized, Starship needs to get into orbit. The first two full-scale Starship test flights last year didn’t make it that far, but SpaceX got close on the second launch in November. SpaceX hopes to achieve a near-orbital mission with the third Starship test launch, perhaps as soon as early March.

Eventually, Musk envisions Starship launching multiple times per day on a variety of missions, carrying people, satellites, cargo, or refueling tankers into orbit. In order to do this, SpaceX will need a lot of launch and landing pads. SpaceX has toyed with the idea of floating offshore launch and landing platforms, but those plans are on hold.

In the near-term, SpaceX plans to build a second Starship launch tower at the company’s Starbase test site in Cameron County, Texas. There’s also the partially-built launch tower at LC-39A, and now SpaceX has set its sights on SLC-37.

SpaceX was previously looking at building another Starship launch pad from scratch on NASA property at the Kennedy Space Center. NASA environmental studies for this location, known as Launch Complex 49, kicked off in 2021. Patti Bielling, a NASA spokesperson, told Ars on Friday the agency is no longer working on Launch Complex 49.

“At this time, there are no activities involving LC-49 on Kennedy,” Bielling said. “Any previous activities regarding LC-49 were suspended, and no actions were taken.”

One of the first operational applications for Starship will be to serve as a human-rated lunar lander for NASA’s Artemis program. SpaceX is developing a version of Starship to ferry astronauts to and from the Moon’s surface, but in order for Starship to reach the Moon, it has to be refueled in low-Earth orbit. This will require perhaps 10 or more refueling flights using a version of Starship called a tanker, all launching in a matter of weeks. Those tanker flights will launch on Super Heavy boosters from pads in Texas and Florida.

In parallel with continued Starship test flights and demonstrating in-space refueling technology, SpaceX needs to build more launch pads to make all this possible. Although SpaceX has backpedaled on several of its Starship launch pad ideas, the company’s interest in SLC-37 suggests it still has big plans for Starship in Florida.

SpaceX wants to take over a Florida launch pad from rival ULA Read More »

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Rocket Report: Falcon 9 flies for 300th time; an intriguing launch from Russia

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Co-planar —

Starship is fully stacked in South Texas for the rocket’s third test flight.

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The upper stage for the first Ariane 6 flight vehicle is seen inside its factory in Bremen, Germany. The upper stage's hydrogen-fueled Vinci engine is visible in this image.

Enlarge / The upper stage for the first Ariane 6 flight vehicle is seen inside its factory in Bremen, Germany. The upper stage’s hydrogen-fueled Vinci engine is visible in this image.

Welcome to Edition 6.31 of the Rocket Report! Photographers at Cape Canaveral, Florida, noticed a change to the spaceport’s skyline this week. Blue Origin has erected a full-size simulator of its New Glenn rocket vertically on its launch pad for a series of fit checks and tests. Late last year, we reported Blue Origin was serious about getting the oft-delayed New Glenn rocket off the ground by the end of 2024. This is a good sign of progress toward that goal, but there’s a long, long way to go. It was fun to watch preparations for the inaugural flights of a few other heavy-lift rockets in the last couple of years (Starship, SLS, and Vulcan). This year, it’s New Glenn.

As always, we welcome reader submissions, and if you don’t want to miss an issue, please subscribe using the box below (the form will not appear on AMP-enabled versions of the site). Each report will include information on small-, medium-, and heavy-lift rockets, as well as a quick look ahead at the next three launches on the calendar.

Russia launches a classified satellite. On February 9, Russia launched its first orbital mission of the year with the liftoff of a Soyuz-2-1v rocket from the Plesetsk Cosmodrome in the far north of the country. The two-stage rocket delivered a classified satellite into orbit for the Russian military, Anatoly Zak of RussianSpaceWeb.com reports. In keeping with the Russian military’s naming convention, the satellite is known simply as Kosmos 2575, and there’s little indication about what it will do in space, except for one key fact.

But wait, there’s more … It turns out the launch of Kosmos 2575 occurred at exactly the same time of day as another Soyuz-2-1v rocket launched on December 27 with a Russian military satellite named Kosmos 2574. The newer spacecraft launched into the same orbital plane as Kosmos 2574, a strong indication that the two satellites have a shared mission. In recent years, Russia has tested rendezvous, proximity operations, and, at least in one instance, a projectile that would have applications for an anti-satellite weapon. You can be sure the US military and a global community of hobbyist satellite trackers will watch closely to see if these two satellites approach one another. If they do, they could continue technology demonstrations for an anti-satellite system. It’s unclear if the recent revelations regarding US officials’ concerns about Russian anti-satellite capabilities are related to these recent launches.

European startup testing methane-fueled rocket engine. Space transportation startup The Exploration Company has continued testing its methane-fueled Huracán engine, which will power an in-space and lunar transportation vehicle under development, European Spaceflight reports. Most recently, the Huracán engine completed another round of thrust chamber testing using liquid methane fuel as a coolant and tested a new thermal barrier coating. The methane/liquid oxygen engine is undergoing testing at a facility in Lampoldshausen, Germany, ahead of use on The Exploration Company’s Nyx Moon spacecraft, a transfer vehicle designed for transportation to and from cislunar space and also capable of Moon landings. The Nyx Moon is an evolution of a transfer vehicle the European startup is developing to ferry satellites between different orbits around Earth.

Other uses for Huracán… The Exploration Company appears to be positioning itself not only as a builder and operator of orbital and lunar transfer vehicles but also as a propulsion supplier to other space companies. In 2022, The Exploration Company received funding for the Huracán engine from the French government. At the time, the company described the engine as serving the needs of “the upper stages of small launchers and those of orbital vehicles.” (submitted by Ken the Bin)

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Rocket Report: Falcon 9 flies for 300th time; an intriguing launch from Russia Read More »