Tag Archives: competition

SpaceX pinpoints cause of Dragon explosion during test

Points of Information

SpaceX today revealed that it has pinpointed the cause of the explosion that destroyed a Dragon manned capsule during an engine test in April.

The company believes that the problem originated with the Crew Dragon’s emergency abort system, which consists of a series of small thrusters embedded within the capsule. If all goes well during a mission, these tiny thrusters are never really meant to be used. But if there is some kind of failure during a future launch, the thrusters can ignite and carry the Crew Dragon safely away from a disintegrating rocket.

SpaceX says that a leaky valve caused the propellant needed for these thrusters to cross into another system — one of really high pressure. When this contamination occurred, the high forces slammed the liquid around, causing valuable components to fail and leading to the ultimate loss of the capsule.

Koenigsman said that this contamination definitely was not anticipated, though the kind of valve that leaked has been known to have some internal leakage problem. Ultimately, he acknowledged that, to some extent, this was a design issue. “It’s something that the components should not have done,” Koenigsman said. “But at the same time, we learned a very valuable lesson on something going forward, one that makes the Crew Dragon a safer vehicle.”
““it was a huge gift for us.” ”

SpaceX will replace all of these types of valves with another component known as a burst disk, which is supposed to be much more reliable, according to Koenigsman.

The company is still hoping to fly before the end of the year, but admits that this may not be possible. Right now they have a tentative launch date in November.

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Russia successfully launches Spektr-RG carrying two X-ray space telescopes

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Russia today successfully used its Proton rocket to launch Spektr-RG, carrying two X-ray space telescopes.

Spektr-RG was first conceived in the 1990s, but got shelved then because Russia did not have the money to launch it. The project got revived in 2005 when the Germans came on to build one of the two telescopes.

“We had an ambitious plan for the project which didn’t correspond to the power of the country of that moment,” [lead scientist Mikhail] Pavlinsky told Spaceflight Now. “We decided to restart it with a smaller version.”

The Russian and German space agencies signed an agreement in 2009 to jointly develop the Spektr-RG mission, but the project faced additional schedule delays due to technical problems and a decision to switch the observatory from a Zenit launcher to a Proton rocket.

Designers also changed Spektr-RG’s observing location from an orbit around Earth to a looping trajectory around the L2 Lagrange point.

Spektr-RG is the largest Russian astronomy satellite to launch since the Spektr-R radio observatory in 2011. Spektr-R stopped responding to commands from the ground in January after exceeding its planned five-year mission lifetime, and Russian officials declared the mission over in April.

Spektr-RG’s planned mission is set for seven years.

The leaders in the 2019 launch race:

9 China
8 SpaceX
8 Russia
5 Europe (Arianespace)

The U.S. continues to lead China in the national rankings 14 to 9.

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Arianespace Vega launch fails

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The launch of a United Arab Emirates military satellite on an Arianespace Vega rocket failed tonight two minutes after liftoff.

Luce Fabreguettes, Arianespace’s executive vice president of missions, operations and purchasing, said the failure occurred around the time of ignition of the Vega rocket’s solid-fueled Zefiro 23 second stage.

“As you have seen, about two minutes after liftoff, around the Z23 (second stage) ignition, a major anomaly occurred, resulting in the loss of the mission,” Fabreguettes said. “On behalf of Arianespace, I wish to express our deepest apologies to our customers for the loss of their payload.”

Prior to this failure the Vega had flown fourteen times successfully since its inauguration in 2012.

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Virgin Orbit successfully completes rocket drop from 747

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Capitalism in space: Virgin Orbit today successfully completed a drop of a dummy rocket from the fuselage of its 747.

Although the rocket was “fully loaded,” as the company put it, its engines never fired—nor were they meant to. Instead, the rocket fell freely to Earth so the company could see how it performed during its first few seconds of freefall. This was the last major test for Virgin Orbit’s air-launch system, which will launch rockets from a gutted jumbo jet, known as Cosmic Girl, to boost small satellites into orbit. It’s a complicated maneuver, but it could significantly reduce the costs of getting to space.

The article says they plan their first orbital test flight in the fall. Whether today’s success and that launch can get the company back on track after OneWeb cancelled the bulk of its contract remains to be seen. If they succeed in launching to orbit this year that will make them the only operational competitor to Rocket Lab in the smallsat market, with a system that might be cheaper.

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White House objects to House language on military space

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The White House today released a detailed statement listing its objections to the House language on the upcoming military space authorization bill and threatening a veto if the Senate version is not passed.

Their objection seem to center on two issues. First, while the administration has accepted the idea of a space corp within the Air Force rather than a separate new military branch, they appear prefer the Senate language for this change. This disagreement appears relatively minor in the entire scheme of things.

Second, and more significantly, the White House has objections to the planned launch contract set up the Air Force has been pushing that would have them pick two launch providers now for all their launches through 2024, rather than allow all comers to bid on those launches as they came up.

On the National Security Space Launch program, the administration “strongly objects” to HASC [House Armed Services Committee] Chairman Adam Smith’s Section 1601 language “as it would increase mission risk for the nation’s national security satellites.”

Section 1601 would mandate that the Air Force compete contracts for any launches beyond 29 launches during the period from fiscal year 2020 to fiscal year 2024. This section would also mandate that the Air Force provide up to $500 million to launch companies that either win a Phase 2 contract after fiscal year 2022 or win a Phase 2 contract but are not part of a Launch Service Agreement, in order to meet national security-unique infrastructure and certification requirements for a Phase 2 contract. This section also require a notification of the selection in fiscal year 2020 of the two providers for Phase 2 launches.

The administration opposes these provisions. “After careful and considered study, DoD determined that a contract for national security space launch requirements over the course of five years would optimize warfighter flexibility, minimizes mission risk, and provides exceptional value to the taxpayer,” says the White House statement. “Confining Phase 2 to fewer missions would increase per-launch cost while simultaneously introducing risk and costs for some intelligence payloads. Finally, notifying Congress prior to a contract would be a departure from long-standing tradition and might put DoD at a greater risk of a protest.”

To put this in simple terms, the House language was an attempt to open up the bidding, while also offering $500 million development money to any company who missed out initially. The White House, and the Air Force, wish to restrict the bidding process, and don’t want to pay that extra $500 million.

All of this I think will become irrelevant the first time the Air Force issues a bid offer for a launch contract but restricts bidding to only two launch companies, even if a third or fourth is available and capable of fulfilling the contract. The excluded launch companies will sue for the right to bid, and they will win.

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Beresheet design adopted by Firefly & Israeli private partnership

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Capitalism in space: The American smallsat launch company Firefly Aerospace announced today that they will be partnering with a private Israeli company to use the design of Beresheet to build their own lunar lander for NASA.

Firefly Aerospace announced that it is partnering with Israel Aerospace Industries (IAI) to create a new lunar vehicle based on the crashed spacecraft’s blueprints. Firefly says this lander will build upon “lessons learned” from the accident to ensure that the new lander does not meet the same fate.

…If Firefly does mount a lunar mission, the company’s lander, called Genesis, will leverage much of the Beresheet design as well as the IAI team’s flight experience. “Firefly Aerospace is excited to partner with Israel Aerospace Industries to provide the only NASA CLPS program flight-proven lander design,” Shea Ferring, Firefly’s vice president of mission assurance, said in a statement. The name of the lander is also a nod to Beresheet, which means “Genesis” in Hebrew.

It appears that a group of engineers from the non-profit SpaceIL, that built Beresheet, have teamed up to form their own company. It also appears that they have some rights to the spacecraft’s design, and could take them with them.

Firefly is competing for a NASA contract to land on the Moon. This deal strengthens their bid considerably.

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Private lunar lander company files for bankruptcy

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Capitalism in space: Former Google Lunar X-Prize competitor Part Time Scientists has now filed for bankruptcy.

The company, with about 60 employees, has emphasized a number of partnerships with major corporations, such as Audi, Vodafone and Red Bull Media House, a subsidiary of beverage company Red Bull. The company is also teamed with ArianeGroup to study development of a lunar lander mission for ESA.

PTScientists, though, had suffered delays in the development of its lunar lander. The company said last November its lander could launch as soon as late 2019, a date it revised in January to no earlier than the first quarter of 2020. However, at a conference in early June, a company official said that lander mission would now launch no earlier than the second half of 2021 as it continues to work on the lander’s design.

It appears to me that they simply were never able to raise the capital necessary to build their lander, despite these partnership deals.

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Light Sail 2 beams back first images

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Capitalism in space: The Planetary Society’s privately funded spacecraft Light Sail 2, launched June 25 on SpaceX’s Falcon Heavy, sent back its first images from orbit on July 7.

The images are not very interesting to look at, mostly because their purpose is engineering. Two cameras took pictures of the light sail’s deployment equipment inside the spacecraft to show that it is still in good shape. Another picture showed the Earth, demonstrating that the camera will be able to image the deployment of the solar sail, which might occur as early as today. UPDATE: They have announced that the deployment will not occur prior to July 21.

Once deployed from a cubesat about the size of a loaf of bread, the sail will be about the size of a boxing ring. They will then attempt to use the sunlight bouncing off it to sail in space, changing the sail’s orbit.

The science team also announced the debut of a mission control website, where the public can see live updates whenever the spacecraft sends back new information. As I write this the solar sail is still listed as “stowed,” but that status will change once they attempt the deployment.

For the public this website will be especially useful once the sail deploys, because it will be very bright to observers on the ground. The site shows Light Sail 2’s present position, making it possible for viewers to better anticipate when they will be able to see it fly overhead.

Update: This post has been revised slightly to make it more accurate, as per a comment by reader Rex Ridenoure.

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NASA begins the slow leak process prior to announcing new SLS delays

Essays And Commentaries

As it has been doing for the past half decade, NASA has now begun the process of issuing hints about a future announcement of more SLS launch delays, in order to prepare the public and neuter any possible negative news coverage.

The linked article above outlines in great detail the present status of SLS and the assembly of its core stage. The main decision the agency now faces is whether it will do what it calls an “SLS Green Run,” where they assemble that core stage on a test stand at the Stennis Space Center in Mississippi and fire it for a full duration static test. Such a test is necessary to validate the engineering models that were used to build the rocket. Without it no one will know if they have modeled the design correctly, meaning that during the first real launch they might find the rocket does not perform as predicted and could even fail.

Doing this test however will guarantee that the first SLS launch, Artemis 1, will not occur in June 2020 as presently scheduled, and will likely be delayed for another year.

The Trump administration has already made it clear it will not take kindly to more SLS delays. It has also made it clear that it will consider already available commercial options, such as SpaceX’s Falcon Heavy, if NASA cannot deliver SLS as promised.

This puts NASA in a quandary.
» Read more

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Amazon releases more details about proposed Kuiper satellite constellation

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Capitalism in space: Amazon on July 4 submitted to federal regulators a more detailed description of its proposed 3,000+ Kuiper satellite constellation.

Amazon’s Kuiper System satellites will have a design life seven years — less than half that of a traditional geostationary communications satellite — and will be launched in five waves, according to a July 4 filing with the U.S. Federal Communications Commission.

The first wave consists of 578 satellites that would provide internet service in two horizontal coverage bands, one between 39 degrees north and 56 degrees north (roughly from Philadelphia north to Moscow) and another from 39 degrees south down to 56 degrees south (roughly from Hastings, New Zealand, to the top of Great Britain’s South Sandwich Islands in the Atlantic Ocean). The subsequent four waves would fill in coverage to the equator.

Amazon didn’t say when those satellites would launch or what launch vehicle they would use to reach orbit. Jeff Bezos, the founder of Amazon, also owns launch company Blue Origin, whose New Glenn orbital rocket is slated for a first launch in 2021.

If Amazon intends to use Bezos’ New Glenn rocket, this system cannot launch prior to 2021, at the earliest, and that means it will likely enter the internet competition with SpaceX and OneWeb late. This is not fatal for Amazon, but it will require them to offer something to their customers that will draw them away from the earlier constellations.

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Fire at SpaceX Starhopper facility in Florida

Points of Information

A fire in SpaceX’s Florida facility yesterday, where it is building a Starship prototype, caused between $50,000 to $100,000 damages.

City spokesperson Yvonne Martinez confirmed a small fire broke out at the facility on Cidco Road around noon and that the Cocoa Fire Department was able to quickly extinguish it. She said crews suspected an electrical fault as the source of the fire.

“This afternoon, a small fire occurred at a SpaceX facility in Cocoa,” SpaceX spokesperson James Gleeson told FLORIDA TODAY. “The fire was contained to a sea van on site and extinguished thanks to the Cocoa Fire Department, which responded within minutes.”

“There were no injuries as a result of the fire, and the cause is under investigation,” he said.

Martinez said the fire department estimates about $50,000 to $100,000 in damages were sustained by the shipping container and equipment inside, as well as the adjacent building.

This will be a blow to the Florida SpaceX unit that is competing with the Boca Chica unit on the construction of Starship.

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Branson sells 49% of Virgin Galactic, stock to be publicly listed

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Capitalism in space: Richard Branson has sold 49% of Virgin Galactic in a deal that will have the company’s stock publicly listed by the end of 2019.

The firm will list its shares as part of a merger deal with Social Capital Hedosophia, a special-purpose acquisition company (SPAC) created by venture capitalist Chamath Palihapitiya. Social Capital Hedosophia, formed by Palihapitiya’s Social Capital and venture capital firm Hedosophia in 2017, will invest $800 million for a 49% stake in the combined company. The firm will have an enterprise value of $1.5 billion, Virgin Galactic said.

…Branson’s space venture would be the first publicly-listed human spaceflight firm, with the stock market listing slated to take place in the second half of 2019.

Branson had been in talks with Palihapitiya since he suspended talks over a Saudi investment in his space companies last year. Riyadh had planned to invest a total of $1 billion into Virgin Galactic and Virgin Orbit, which focuses on small satellites, but the deal fell through over the murder of journalist Jamal Khashoggi.

Branson was the person who said the Saudis backed out because of Khashoggi, but I personally do not believe that story. What I think happened was that, after 15 years of empty promises and no tourist flights, the Saudis suddenly realized that Virgin Galactic was a bad investment, and backed out. Branson now needs cash to keep the company afloat.

I am honestly unfamiliar with the ways of Wall Street. I do not know whether being “publicly listed” means the stock will be available for trade. If so, I expect the stock value to quickly plunge.

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Reused Falcon 9 wins NASA launch contract instead of Pegasus

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Captalism in space: NASA has awarded SpaceX a Falcon 9 launch contract using a reused first stage for its next X-ray telescope, the Imaging X-ray Polarimetry Explorer (IXPE)..

SpaceX will charge NASA just over $50 million, its normal price for a reused Falcon 9 and significantly less than NASA has previously paid for this kind of launch. More important, the telescope had been designed with the expectation that it would be launched using Northrop Grumman’s Pegasus rocket. It appears NASA had instead decided to bypass Pegasus, partly because it probably costs more, and partly because there is some issue with Pegasus that has delayed the launch of NASA’s ICON since 2017.

In fact, that ICON launch is the only contract that Pegasus presently has, and it is charging NASA $56 million for that launch, with NASA also having to bear the additional costs associated with the delays caused by Pegasus. All these issues, plus the loss of the IXPE launch, strongly suggests that Pegasus is in big trouble. It does not appear that, as it is presently being marketed, it is able to garner any business.

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Man who wanted to be the first African in space killed in road accident

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A South African man who had won a competition to fly on a suborbital tourist flight has been killed in a motorcycle accident.

Mandla Maseko, 30, was killed on Saturday, a family statement says.

In 2013, the South African Air Force member beat one million entrants to win one of 23 places at a space academy in the US. Nicknamed Afronaut and Spaceboy, Maseko described himself as a typical township boy from Pretoria.

…He had spent a week at the Kennedy Space Centre in Florida doing tests in preparation for an hour-long sub-orbital flight, originally scheduled for 2015. Challenges included skydiving to earth from 10,000 feet and a test charmingly known as the “vomit comet”.

But the chance never came to go into space. The company organising the flight, XCOR Aerospace, went bankrupt in 2017, news site Space.com reported.

All around a terrible tragedy.

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X-37B photographed in orbit

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X-37B as seen by telescope
Click for full image.

An amateur astronomer this week was able to get a photograph of the X-37B presently in orbit about 200 miles high.

The [X-37B] is a small version of the classic Space Shuttle, it is really a small object, even at only 300 km altitude, so dont expect the detail level of ground based images of the real Space Shuttle. Considering this, the attached images succeeded beyond expectations. We can recognize a bit of the nose, Payload Bay and tail of this mini-shuttle with even a sign of some smaller detail.

The image on the right, reduced and cropped to post here, shows the image with a graphic of the spacecraft in comparison.

The graphic assumes the X-37B’s cargo door is open, but the actual image does not match this, to my eye. Instead, it appears partly open, with some kind of large object protruding from the cargo bay.

This X-37B spacecraft, one of two the Air Force flies, was launched by SpaceX in September 2017 and has now been in space more than 664 days, with no indication yet when it will return to Earth. The present record is 718 days for the longest X-37B flight, set by the Air Force’s other X-37B. It appears likely that this spacecraft will exceed that record.

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Russian Soyuz rocket successfully launches 33 satellites into orbit

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In its first Vostochny launch in 2019, Russia today used its Soyuz rocket to successfully launch a variety of weather, engineering, and Earth observation satellites totaling 33 into orbit.

As I write this the satellites are in orbit but have not yet been deployed by the rocket’s Fregat upper stage, a process that will take several hours as it moves them into a variety of orbits.

Many of the smaller satellites on this rockets are commercial cubesats, and are Russia’s effort to regain some of its lost commercial business that had been captured by SpaceX. They are also a sign of the changing launch business. Previously Russia’s commercial flights were all on its larger Proton rocket because the satellites were larger. Now the business is shifting to the smaller and recently more reliable Soyuz, because smaller satellites are beginning to dominate the industry.

The leaders in the 2019 launch race:

9 China
8 SpaceX
6 Russia
5 Europe (Arianespace)
3 India
3 Rocket Lab

The U.S. continues to lead China 14 to 9 in the national rankings.

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Update on planned Russian additions to ISS

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Link here. The article describes present status of Russia’s new modules to ISS, along with their tentative launch dates in the early 2020s.

We should not take these dates too seriously. Russia is literally decades behind schedule in launching this stuff. Whether they can finally get them in orbit now, with their present shortage in cash, remains unknown.

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Want to get off gmail? Behind the Black might provide an option

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I am exploring the possibility of offering email services through my server for those who want to get off of gmail and google. However, before such a service can be offered, we need to know the amount of interest there might be. The demand will effect the cost, which means I can’t even give you an idea of what we might charge.

Regardless, if you are interested in having “your.name@behindtheblack.com” as your email address, please say so in the comments. There will be no obligations, by you or me or my server, but the response however will help us decide if we can do it.

And if we can do it, and many people sign on, we will then be taking the proper free enterprise approach for combating the corrupt business practices of giants like Google. Our federal government might still act to break Google up, but I think it would be far better if the free market did the job instead.

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Apollo landing tapes for sale

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An intern who in 1976 purchased more than a thousand surplus 2-inch videotapes from NASA for $218 is now going to auction off three of those reels that show the Apollo 11 moon walk.

Back in 1976, NASA gave 1,150 reels of 2-inch Quadruplex videotape to a government surplus auction. Gary George, a former intern at NASA’s Johnson Space Center, snapped up the lot of them for $218, in the hopes of selling them to news stations to record over for $50 a pop. He never watched them, but because his dad was a space buff, kept three of the tapes marked as “Apollo 11 EVA” (aka Extravehicular Activity, better known as a spacewalk). When he eventually watched the tapes, he realized that he had one of three surviving copies of one of the greatest feats of human ingenuity, the July 20, 1969 Moon landing. Now, those videotapes will be auctioned off to the highest bidder when Sotheby’s will mark the 50th anniversary of the moon landing by putting the tapes up for sale on July 20th, at a starting bid of $700,000.

“I had no idea there was anything of value on them,” George said in an interview with Reuters. He started to get suspicious in 2006, after NASA admitted they had lost the tapes, and believed they could have been in the 2,614 boxes of Apollo mission tapes that were sent to a storage facility in late 1969. George got in touch with video archivist David Crosthwait in California, who had the necessary equipment to view the vintage tapes. In December 2008, George played the reels and quickly realized what he had been storing over the last few decades. He contacted NASA about the reels but “an agreement could not be reached,” according to the auction listing, and off to the auction block they go as part of an auction dedicated to Space Exploration.

The saddest part of this story are the tapes George sold to television stations to use to back-up their daily broadcasts. Some of those tapes probably contained historical recordings of the Apollo missions. While I suspect these tapes were not NASA’s only copies, I cannot be sure, which means some of the source material for the Apollo missions was likely lost.

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ExoMars 2020 parachutes damaged during test

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Bad news: The parachutes for the European/Russian ExoMars 2020 mission were damaged during a parachute test.

A May 28 test of the parachute system used a high-altitude balloon above the Swedish Space Corporation’s Esrange test site in northern Sweden. The test was intended to demonstrate the end-to-end performance of the entire system, including both the pilot and main chutes as well as the mortars used to extract the pilot chutes.

ESA said that the first main parachute suffered several radial tears in its fabric, all occurring before reaching its maximum load. The second main parachute also suffered a single tear, also before peak loading.

The other parts of the parachute system worked as expected, and ESA said “a good level of the expected aerodynamic drag was nevertheless achieved” despite the damage sustained by the parachutes. However, the agency acknowledged that the problem needs to be understood and corrected prior to the mission’s launch in one year.

They can easily get the parachutes repaired before the July 2020 launch. The problem is figuring out what caused the damage and fixing that in the time left. They already had planned two more parachute tests, but these cannot happen prior to all the fixes, and then they have to work.

Considering that they will only assemble the spacecraft at the end of this year, I am increasingly thinking that ExoMars 2020 will not launch in 2020. And if it does, I will not be surprised if it turns out to be a failure.

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LightSail 2 released from cubesat; establishes contact

Points of Information

The Planetary Society’s LightSail-2 technology demonstration satellite was released from its carrier vehicle today and successfully established communications with the ground.

The CubeSat, about the size of a loaf of bread, was scheduled to leave Prox-1 precisely 7 days after both spacecraft successfully flew to orbit aboard a SpaceX Falcon Heavy rocket. Following deployment from its spring-loaded enclosure known as a P-POD, LightSail 2 deployed its radio antenna and began transmitting health and status data, as well as a morse code beacon indicating its call sign. The mission team received LightSail 2’s first signals on 2 July at 01:34 PDT (08:34 UTC), as the spacecraft passed over Cal Poly.

…The team will spend about a week checking out LightSail 2’s systems, exercising the spacecraft’s momentum wheel, and taking camera test images before and after deployment of the CubeSat’s dual-sided solar panels. Following the successful completion of these tests, the team will deploy the 32-square-meter solar sail, about the size of a boxing ring. A time for the solar sail deployment attempt will be announced later.

If they successfully deploy the solar sail and use it to maneuver in space, it will the second time the Planetary Society has done it, having deployed LightSail-1 in 2015. That mission has some communications problems, but eventually succeeded in its main engineering mission by testing the sail deployment system.

LightSail-2 will also be the third time a light sail has been flown in space, with the first, Ikaros, deployed by the Japanese in 2010 and flown in solar orbit through 2012. That mission was successful in using sunlight to accelerate the sail.

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India hires Russia to train its astronauts

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The new colonial movement: India’s space agency ISRO has hired the Russians to train its astronauts for its first home-built manned mission, Gaganyaan, presently scheduled to fly in 2022.

This decision makes a lot of sense. First, the space programs of Russia and India have cooperated a lot in the past, with Russia launch India’s first astronaut on a Soyuz in 1984. Second, Russia has a great deal of experience training new astronauts from other countries, including tourists. Third, neither of the other countries with manned programs, the U.S. and China, have established systems for this kind of training. China has never training any outsiders, and NASA’s systems for this are not designed for efficiency. Moreover, it has been eight years since the U.S. put anyone in space. If I was India I would prefer using someone with recent experience.

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SLS abort test for Orion successful

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The second launch abort test of NASA’s SLS/Orion rocket/capsule was successfully completed today.

I have embedded video of the test below the fold. The goal was to test the system that will safely separate the capsule from a failing rocket, which is why no parachutes released to gently bring the capsule back to Earth.

Ascent Abort-2 (AA-2) intentionally runs that emergency abort sequence. Three motors in the LAS fired in that short sequence of a few seconds and then the test was essentially over before the three minutes was up while the hardware was airborne.

NASA and its Orion contractor team recorded test data from real-time telemetry and in onboard data recorders, but the major hardware for the test fell into the ocean. A set of a dozen data recorders were ejected from the Crew Module test article for recovery before it hit the water and sunk.

Why they couldn’t also test the parachutes the same time illustrates the wasteful manner in which SLS/Orion is managed. Moreover, this test was the second for this rocket/capsule, with the first occurring nine years ago, in May 2010. As I have noted,

We fought and won World War II in about a third of that amount of time. The Civil War took about half that time. In fact, it took SpaceX less time to conceive, design, and launch the Falcon Heavy.

Any project that takes this long to accomplish anything is a fraud. It indicates that the goal of SLS/Orion is not to build and fly a manned capsule, but to suck money from the taxpayer for as long as possible.

» Read more

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Comparing today’s modern rocket engines

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For the geeks among us, below the fold is a really really good video describing the engineering designs and considerations that have gone into the launch industry’s most important rocket engines, both now and in the future, with the goal of understanding the design choices SpaceX made for its Raptor engine.

The video is almost 50 minutes long, but if you set the speed at 1.25 you can still understand it and save some time.

Hat tip reader Michael Nelson.
» Read more

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Exos suborbital reusable rocket aborts prematurely during third launch

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Capitalism in space: The third flight of Exos Aerospace’s reusable suborbital rocket SARGE was cut short today shortly after launch when the rocket had attitude control problems.

A reusable suborbital rocket developed by Exos Aerospace suffered a loss of attitude control seconds after liftoff on a test flight June 29, but the rocket was still able to glide safely back to Earth.

Exos’ Suborbital Autonomous Rocket with GuidancE, or SARGE, rocket lifted off from Spaceport America in New Mexico at about 2 p.m. Eastern. In the company’s webcast, the rocket started gyrating seconds after liftoff before disappearing from view.

Controllers were able to reestablish some control of the rocket, aborting the flight. The rocket deployed a drogue parachute and parafoil while venting unused propellant. The rocket slowly descended under that parafoil, landing within view of the launch pad 14 minutes after liftoff.

That it appears they were able to safely recover the rocket and its payloads is significant, even though this failure is a setback for the company.

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The travels of China’s Yutu-2 rover on the Moon

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Yutu-2 and Chang'e-4
Click for full image.

The Lunar Reconnaissance Orbiter (LRO) science team today released images that track the travels of China’s lunar rover Yutu-2 from its landing on January 30, 2019 through June 3, covering the rover’s first six lunar days on the Moon.

The image to the right, cropped, reduced, and annotated to post here, shows the relative positions of both spacecraft as of June 3, 2019. In the release they also included a gif movie showing the progression of Yutu-2’s movements since landing.

Once a month, LRO passes over the Chang’e 4 landing site, allowing LROC to capture a new image. LROC has now imaged the site five times (since the landing) and observed Yutu-2 to have traveled a total of 186 meters (distance measured using the rover tracks). If you squint, portions of the rover tracks are visible as a dark path in the images from April, May, and possibly June.

table of Yutu-2's movements through June 2019

The LRO release also included a table showing the distance Yutu-2 has traveled with each lunar day, shown on the right. The table does not include the 23 meters (75 feet) the rover traveled on its sixth lunar day. My estimate yesterday that Yutu-2 was traveling an average of about a 100 feet per day, with the distances per day shrinking with time, seems largely correct. During the rover’s fourth and fifth lunar days it moved very little, either because they had found something very interesting they wanted to inspect more closely, or they were moving more cautiously as the rover’s life extended past its planned lifespan of three lunar days.

On the sixth day however they increased their travels again, suggesting that either they had finished the observations at the previous location, or they had gained more confidence in the rover’s staying power.

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SpaceX seeking more investment capital

Points of Information

Capitalism in space: SpaceX has begun its third round of private fund-raising this year, this time seeking more than $300 million.

The latest round, filed on Monday, seeks to raise $314.2 million at a price of $214 a share, according to a document seen by CNBC. The new equity would bring SpaceX’s total 2019 fundraising to $1.33 billion once completed.

The block of this new round appears to already be funded from the Ontario Teachers’ Pension Plan.

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