Tag: spaceflight

China developing 13,000 satellite communications constellation

10:48 am

The new colonial movement: China appears to be merging several different large satellite communications constellation projects into a single mega-constellation employing possibly 13,000 satellites.

Recent comments by senior officials indicate that plans are moving ahead to alter earlier constellation plans by space sector state-owned enterprises and possibly make these part of a larger “Guowang” or “national network” satellite internet project.

Spectrum allocation filings submitted to the International Telecommunication Union (ITU) by China in September last year revealed plans to construct two similarly named “GW” low Earth orbit constellations totaling 12,992 satellites.

Two previously announced constellations, dubbed Hongyan and Hongyun, are being reshaped to join this single larger constellation.

Obviously, coordination will be required between these satellites and the other mega constellations begin built by companies such as OneWeb, SpaceX, and Amazon. In fact, the tiff between OneWeb and SpaceX this week over the close fly-by of two of their satellites illustrates well this need.

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SpaceX accuses OneWeb lobbyist of making false claims about a Starlink and OneWeb satellite close approach

10:47 am

Capitalism in space: In an FCC filing on April 20th, SpaceX accused a lobbyist for OneWeb to have made false claims against SpaceX in connection with a close approach between Starlink and OneWeb satellites.

In yesterday’s filing to the FCC, SpaceX said that “OneWeb’s head lobbyist recently made demonstrably inaccurate statements to the media about recent coordinations of physical operations. Specifically, Mr. McLaughlin of OneWeb told the Wall Street Journal that SpaceX switched off its AI-powered, autonomous collision avoidance system and ‘they couldn’t do anything to avoid a collision.’ Rather, SpaceX and OneWeb were working together in good faith at the technical level. As part of these discussions, OneWeb itself requested that SpaceX turn off the system temporarily to allow their maneuver, as agreed by the parties.”

SpaceX’s “autonomous collision avoidance system was and remains fully functional at all times,” SpaceX also wrote.

SpaceX also claimed that OneWeb admitted that the claims of its lobbyist were false, but OneWeb subsequently denied this.

It appears overall that OneWeb and its lobbyist tried to use this event to not only attack SpaceX, but to hinder SpaceX’s development of Starlink. According to SpaceX’s filing,

OneWeb’s misleading public statements coincide with OneWeb’s intensified efforts to prevent SpaceX from completing a safety upgrade to its system. For instance, immediately after the first inaccurate quotes came out in media accounts, OneWeb met with Commission staff and Commissioners demanding unilateral conditions placed on SpaceX’s operations. Ironically, the conditions demanded by OneWeb would make it more difficult to successfully coordinate difficult operations going forward, demonstrating more of a concern with limiting competitors than with a genuine concern for space safety.

Based on SpaceX’s overall past history and the track record of its competitors, I tend to believe SpaceX here. While the company has a very aggressive development culture, it also reacts instantly to any circumstances where its actions conflict with others. This doesn’t mean it backs off completely, only that it has always been willing to work with others to address their concerns.

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First images of Ingenuity’s second flight

10:01 am

Ingenuity's second flight, April 22, 2021
For full images go here, here, and here.

According to Mimi Aung, the project manager for Ingenuity, they attempted their second flight of the Mars helicopter early this morning, with the following flight plan:

[W]e plan to trying climbing to 16 feet (5 meters) in this flight test. Then, after the helicopter hovers briefly, it will go into a slight tilt and move sideways for 7 feet (2 meters). Then Ingenuity will come to a stop, hover in place, and make turns to point its color camera in different directions before heading back to the center of the airfield to land. Of course, all of this is done autonomously, based on commands we sent to Perseverance to relay to Ingenuity the night before.

No live stream was provided this time. However, the three images above from Perseverance, just downloaded today and taken about nine minutes apart, show Ingenuity before, during, and after that flight. If you compare the first and third images you can see that the helicopter was able to successfully return to the same landing spot.

I expect an announcement of this successful flight to be posted shortly.

UPDATE: JPL has now released an image taken by Ingenuity during its flight.

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Perseverance technology experiment produces oxygen from Mars’ atmosphere

4:17 pm

An engineering test experiment dubbed MOXIE on the Perseverance rover has successfully produced oxygen from the carbon dioxide in the Martian atmosphere, a technology that will be essential for future human missions.

MOXIE (Mars Oxygen In-situ Resource Utilization Experiment), a small, gold box-shaped instrument on the rover, successfully demonstrated a solid oxide electrolysis technology for converting the Martian atmosphere to oxygen. The atmosphere on Mars is about 95% carbon dioxide.

MOXIE’s first oxygen run produced 5.4 grams of oxygen in an hour. The power supply limits potential production to 12 g/hr — about the same amount that a large tree would produce.

…The oxygen production process starts with carbon dioxide intake; inside MOXIE, the Martian CO2 is compressed and filtered to remove any contaminants. It is then heated, which causes separation into oxygen and carbon monoxide. The oxygen is further isolated by a hot, charged ceramic component; the oxygen ions merge into O2. Carbon monoxide is expelled harmlessly back into the atmosphere.

Human missions to Mars will not just need oxygen to breath. They will need it to provide the fuel for leaving the planet and returning to Earth, since it will be very impractical and expensive to bring everything they need with them. For colonization and planetary exploration to truly happen future space-farers must live off the land.

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Glacial layers in a northern crater on Mars

2:11 pm

Crater filled with many layered glacial features
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken by the high resolution camera on Mars Reconnaissance Orbiter on March 6, 2021, and shows a mid-latitude crater in the northern lowland plains of Mars with what appear to be layered glacial features filling its interior.

The theory that scientists presently favor for explaining many of the features we see on Mars is based on many climate cycles caused by the wide swings the planet routinely experiences in its obliquity, or rotational tilt. When that tilt is high, more than 45 degrees, the mid-latitudes are colder than the poles, and water ice sublimates southward to those mid-latitudes to fall as snow and cause active glaciers to form. When that obliquity is low, less than 20 degrees, the mid-latitudes are warmer than the poles and that ice then migrates back north.

Such cycles, which are believed to have occurred many thousands of times in the last few million years, will place many layers on the ground in both the mid-latitudes and at the poles. The layers in this crater hint at this.

The overview map below gives some further context.
» Read more

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Astronomers detect largest flare ever, on Proxima Centauri

10:43 am

In May 2019 astronomers using the Atacama Large Millimeter/submillimeter Array (ALMA) have detected the largest flare ever seen from any star, including our Sun, on the nearest star, the red dwarf Proxima Centauri.

The detection was 100 times stronger than the Sun’s typical flares.

In May 2019, Proxima Centauri ejected a violent flare that lasted just seven seconds, but generated a surge in both ultraviolet and millimeter wavelengths. The flare was characterized by a strong, impulsive spike never before seen at these wavelengths. The event was recorded by five of the nine telescopes involved in the study, including the Hubble Space Telescope (HST) in ultraviolet, and ALMA in millimeter wavelengths. “The star went from normal to 14,000 times brighter when seen in ultraviolet wavelengths over the span of a few seconds,” said MacGregor, adding that similar behavior was captured in millimeter wavelengths by ALMA at the same time.

Red dwarfs are known to issue very powerful flares, a high solar activity that would likely make life as we know it impossible on any Earth-sized planet in its habitable zone, since the star’s small size and dimness requires that zone to be so close to the star. This powerful flare only cements this reality. The exoplanets that have been found circling Proxima Century will therefore not be great places for life, though building the first interplanetary colony there might make sense.

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NASA to buy spacesuits from commercial market

10:22 am

Capitalism in space: NASA last week announced that it is looking for private companies to build spacesuits and other spacewalk equipment that the agency can buy.

In a request for information (RFI) published April 14, NASA revealed that it is looking for feedback from the space sector on its newly updated strategy to work with commercial partners in space. In this new strategy, NASA is looking to collaborate more with commercial partners in developing, building and maintaining technology for spacewalks, or extravehicular activities (EVAs), including spacesuits, the agency said in a statement.

Under this new strategy, the agency will be “shifting acquisition of the exploration extravehicular activity (xEVA) system to a model in which NASA will purchase spacesuit services from commercial partners rather than building them in-house with traditional government contracts,” the statement reads.

This request, issued only days prior to the award of the lunar lander contract to SpaceX, continues the shift at NASA from running things like the Soviet Union, where everything is designed, built, and owned by the government, to the traditional American model of capitalism and free enterprise, where the governement is merely the customer that gets what it needs from the private sector.

The timing also suggests that NASA’s management wants to firm up this shift prior to the arrival of big government guy, former senator and Democrat Bill Nelson, who is undergoing his confirmation hearing today as NASA administrator.

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The upcoming first launch of China’s space station

10:12 am

The Chinese Space Station

The new colonial movement: Later this month, on April 29th, China will use its Long March 5B rocket to launch the first module of its space station, dubbed Tianhe, thus beginning the assembly over the next year or so of their first space station, with ten more launches planned in that short time span.

The T-shape, 100-metric-ton CSS [Chinese Space Station] will comprise three major modules: the 18-meter-long core module, called Tianhe (“Harmony of the Heavens”), and two 14.4-meter-long experiment modules, called Wentian (“Quest for the Heavens”) and Mengtian (“Dreaming of the Heavens”), which will be permanently attached to either side of the core. As the station’s management and control center, Tianhe can accommodate three astronauts for stays of up to six months. Visiting astronauts and cargo spaceships will hook up to the core module from opposite ends. Both it and Wentian are equipped with robotic arms on the outside, and Mengtian has an airlock for the maintenance and repair of experiments mounted on the exterior of the station. Tianhe has a total of five docking ports, which means an extra module can be added for future expansion. The station is designed to operate for more than 10 years.

Much of the work on this station will be similar to the scientific research done on ISS. One additional science project linked to the station however is far more impressive:
» Read more

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Momentus losing contracts due to security concerns

9:37 am

Capitalism in space: The orbit tug company Momentus appears to be losing some of its contracts because of security concerns that have delayed FAA approvals of its launch licenses and forced the cancellation of flights.

The company delayed the launch of its first Vigoride vehicle, which was to fly on a SpaceX rideshare mission in January, because it could not complete a payload review by the Federal Aviation Administration’s Office of Commercial Space Transportation in time. Momentus said that the FAA could not approve the payload “due to national security and foreign ownership concerns regarding Momentus raised by the DoD during an interagency review.”

Momentus now hopes to launch that first Vigoride mission on another Falcon 9 rideshare mission in June. The company said the FAA is still working on that interagency review that is being held open by the Defense Department. The review needs to be completed by the end of May for the company to keep its slot on that June launch.

The company has also lost a contract with Lockheed Martin, which though the reasons have not been stated probably relates to the same issue.

That issue apparently is the company’s former chief executive Mikhail Kokorich and its co-founder Lev Khasis and his wife. To address these concerns, Kokorich has stepped down, and the Khasis have put their shares in the company in a voting trust and will divest them within three years.

All does not appear lost however. Momentus Vigoride tug is presently the only option available for cubesats that need an upper stage to move them to different orbits, and it appears that neither Lockheed Martin nor its other customers are entirely abandoning it. They are simply playing safe, standing back, and waiting until the security issues are resolved and the FAA gives its approval.

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The anti-satellite missile the Soviet Union designed for one of its early space stations

9:25 am

Link here. Apparently a prototype was actually flown in 1975 on the second successful Soviet space station, Salyut 3, a military mission. A more sophisticated version was never flown when the Soviet’s cancelled their military space station program. However, its design was most fascinating:

[L]ittle is known about the specifications and operation of the system, but, according to the Head of Science and Research Center at NPO Mashinostroenia Leonard Smirichevsky, who introduced the weapon, the vehicle’s grenade-like solid propellant charges doubled as engines! RussianSpaceWeb.com’s 3D recreation of the displayed variant established that it held 96 casings with solid propellant arranged in a globular fashion like the petals of a dandelion around a central combustion chamber. Upon their ignition, the chambers/grenades might have fed hot propulsive gas into a single or multiple combustion chambers at the center of the contraption, producing either the main thrust and/or steering the vehicle. When the missile reached the proximity of the target, according to its guiding radar, the entire vehicle would explode and the small solid chambers would eject under their own propulsive force in every direction acting as shrapnel.

The missile had a flight range of about 70 miles, and was designed to destroy any hostile satellite or spacecraft that approached the military station.

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Four more flights for Ingenuity in the next eleven days.

9:14 am

According to MiMi Aung, Ingenuity’s project manager, the test flight campaign for the Mars helicopter Ingenuity has only about eleven days left, during which they will try to complete full flight program of four more test flights.

The helicopter’s one-month test flight campaign officially began April 3, then the Perseverance rover deployed Ingenuity onto the surface of Mars. “We have a 30 day experiment window, so we have two weeks left,” said MiMi Aung, Ingenuity’s project manager at NASA’s Jet Propulsion Laboratory in California.

She said the helicopter will attempt “increasingly bolder flights” that could travel more than 2,000 feet (600 meters) from its takeoff location. “We do want to push it, and I believe we have enough time to squeeze the next four flights in the next two weeks left.”

The second flight, where the helicopter will go up about 16 feet and then move sideways about seven feet before landing at its take-off point, could happen tomorrow. The third flight, which will travel as much as 150 feet, will follow soon thereafter.

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Weather delays next manned flight on Endeavour capsule one day

9:07 am

NASA and SpaceX have chosen to delay tomorrow’s second manned flight on SpaceX’s Endeavour capsule one day because of “unfavorable weather conditions forecast along the flight path for Thursday.”

The launch is now scheduled for 5:49 am (Eastern) on April 23rd. NASA of course will live stream it, though you will have to listen to a lot of pro-NASA propaganda, even though this flight is almost entirely run by SpaceX using a SpaceX rocket, a SpaceX capsule, and SpaceX launch and landing crews. NASA’s real involvement is as a very interested and involved customer during launch and recovery, and then in charge while the crew is docking or is on board ISS.

This will be the first time astronauts will fly on a reused SpaceX capsule. Endeavour was used for the first manned test flight last spring. That earlier flight also creates an interesting human interest side story on this flight. Of the four person crew, pilot Megan McArthur also happens to be the wife of Bob Behnken, who flew on Endeavour last year.

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NASA’s choice of Starship proves government now fully embraces capitalism in space

11:50 am

Five years ago, before Donald Trump had even announced he was running for president, before Elon Musk had proposed his Starship/Superheavy rocket, and even before SpaceX had successfully begun to dominate the launch market, Jerry Hendricks at the Center for for New American Security (CNAS) asked me to write a policy paper on the state of the American launch industry, providing some background and more importantly, some recommendations that policy makers in Washington, dependent on that launch industry, could use as guidance in the coming years.

CNAS is a Washington, D.C., think tank that was founded in the middle-2000s by two political Washington insiders, one a Democrat and the other a Republican, with a focus on foreign policy and defense issues and the central goal of encouraging bi-partisan discussion. Hendricks’ area of focus was defense and aerospace matters, and at the time he thought the changes being wrought by SpaceX’s with its partly reusable Falcon 9 rocket required in-depth analysis. He had heard my many reports on this subject on the John Batchelor Show, and thought I could provide him that analysis.

The result was my 2017 policy paper, Capitalism in Space: Private Enterprise and Competition Reshape the Global Aerospace Launch Industry. In it I reviewed and compared what NASA had been getting from its parallel rocket programs, the government-designed and owned Space Launch System (SLS) rocket versus the privately-designed commercial rockets of SpaceX and Orbital ATK (now part of Northrop Grumman). That review produced this very simple but starkly revealing table:

SLS vs Commercial space

From this data, combined with my extensive knowledge as a historian of American history and culture, resulted in the following fundamental recommendations:
» Read more

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Study: U.S. mortality rates suggest background radiation actually beneficial

9:10 am

The uncertainty of science: According to a new study by researchers at Ben-Gurion University in Israel of mortality rates across the entire United States, people that live in regions of higher background radiation have lifespans on average 2.5 years longer.

Background radiation is an ionizing radiation that exists in the environment because of natural sources. In their study, BGU researchers show that life expectancy is approximately 2.5 years longer among people living in areas with a relatively high vs. low background radiation. Background radiation includes radiation emanating from space, and radiation from terrestrial sources. Since the 1960s, there has been a linear no-threshold hypothesis guiding policy that any radiation level carries some risk. Hundreds of billions of dollars are spent around the world to reduce radiation levels as much as possible.

…According to BGU Professors Vadim Fraifeld and Marina Wolfson, along with Dr. Elroei David of the Nuclear Research Center Negev, lower levels of several types of cancers were found when the radiation levels were on the higher end of the spectrum rather than on the lower end. Among both men and women, there was a significant decrease in lung, pancreatic, colon and rectal cancers. Among men, there were additional decreases in brain and bladder cancers. There was no decrease in cervix, breast or prostate cancers or leukemia.

Their data “covered the entire US population of the 3139 US counties, encompassing over 320 million people,” according to their paper’s abstract.

Up until now the assumption has been that any radiation is bad, based not on research but on assumptions gained by the negative consequence of exposure to high radiation. There has been no good data on the consequences of low level background radiation, because it is so hard to gather. The time frames are long and the numbers small, all of which causes the impact of background radiation to be overwhelmed by other factors. This study’s statistical use of the entire U.S. population is an attempt to overcome these obstacles.

This study is statistical, which means it found a correlation between higher radiation and longer lifespans. Correlation however does not prove causation. The study found no direct evidence that humans health benefits from background radiation. We should therefore take these results with a large grain of salt.

At the same time, their extremely large database is quite telling, and adds some weight to their conclusion.

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Video of Ingenuity’s flight, taken by Perseverance

8:39 am

JPL yesterday released a short one minute long video created from images taken by the high resolution mast camera on Perseverance.

You can view the animation here.

Stitched together from multiple images, the mosaic is not white balanced; instead, it is displayed in a preliminary calibrated version of a natural-color composite, approximately simulating the colors of the scene as it would appear on Mars.

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Amazon signs ULA’s Atlas 5 for first 9 Kuiper satellite launches

4:51 pm

Capitalism in space: Amazon today announced that it has signed a launch contract with ULA to use its Atlas 5 rocket for the first 9 Kuiper satellite launches.

The announcement did not say when these flights will take place, nor how many Kuiper satellites will be on each. Amazon’s license with the FAA requires that it launch half its 3,200 satellite constellation by ’26. Also ULA intends to retire the Atlas 5 in only a few years, replacing it with its Vulcan rocket. This suggests that the launches will occur in the next three years.

They better. Starlink is already going operational, and OneWeb is about to. Plus several other internet constellations are in the pipeline. If Amazon wishes to compete it needs to get those satellites in orbit as quickly as possible. Internet customers don’t generally change their servers easily, tending to stick with whom they’ve got. If Starlink and OneWeb scoop up all the best low-hanging internet fruit Amazon will find itself facing an uphill battle getting customers.

The article revealed one tidbit of interest. Rajeev Badyal, Amazon’s VP of technology for the Kuiper project, was one of the managers Elon Musk fired from his Starlink project in 2018 after realizing that that management team was moving far too slowly for his tastes. It appears Jeff Bezos then hired Badyal to run Kuiper.

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Spring arrives on the northern polar cap of Mars

1:37 pm

Buzzell dunes and pedestal crater near the Martian north polar ice cap
Click for full image.

Cool image time! It is now spring in the northern hemisphere of Mars, and the first bits of sunlight are finally reaching its north polar ice cap. During the winter, as happens each Martian year, that polar cap of water ice gets covered by a thin mantle of dry ice no more than six feet thick. Moreover, this mantle doesn’t just cover the ice cap, it extends south as far as about 60 degrees latitude, covering the giant sea of dunes that surrounds the ice cap.

When spring comes that mantle begins sublimate away, with its base first turning to gas. When the pressure builds up enough, the gas breaks out through the frozen mantle’s weakest points, usually the crest or base of dunes or ridges, leaving behind a dark splotch caused by the material thrown up from below that contrasts with the bright translucent dry ice mantle.

Each year for the past decade scientists have been using the high resolution camera on Mars Reconnaissance Orbiter (MRO) to monitor this sublimation process. The photo above, taken on February 24, 2021 and cropped, enlarged, and brightened to post here, marks the start of this year’s monitoring program. Dubbed informally “Buzzell” by Candice Hansen of the Planetary Science Institute in Arizona, it shows dunes with a round pedestal crater just right of center. Though almost everything when this picture was taken is still covered by that dry ice mantle, in the lower left is a single splotch, the first breakout of CO2 gas that marks the beginning of the annual disappearance of this dry ice.

Last Martian year I repeatedly posted images of Buzzell to illustrate this annual process. The second image below was taken on April 4, 2019, at about the same comparable time in spring.
» Read more

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Boeing confirms next Starliner unmanned demo flight delayed until August

9:25 am

Capitalism in space: Boeing on April 17th confirmed what had already been rumored, that the second unmanned demo flight to ISS of Starliner, its manned capsule, has been delayed until August.

In a statement, Boeing said that the company and NASA are projecting the uncrewed Orbital Flight Test (OFT) 2 mission will take place in August or September. That date is “supported by a space station docking opportunity and the availability of the United Launch Alliance Atlas V rocket and Eastern Range.”

Boeing had been working toward a launch of OFT-2 in late March or early April. However, by early March, NASA officials acknowledged that was no longer likely because of delays from the replacement of avionics units on the spacecraft that were damaged by a power surge during ground tests, as well as power outages in the Houston area caused by a winter storm in February that interrupted software testing.

They still hope to make the first manned demo flight before the end of the year, assuming the summer unmanned flight goes as planned.

For Boeing, the sooner they get this capsule operational, the sooner it can start earning money by flying commercial flights. At the moment the delays have meant that SpaceX is getting all that business, with two private flights already scheduled and rumors that it will win a flight from the UAE as well. Furthermore, other commercial competitors are on the horizon, including both China and India.

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Starship prototype #15 readying for flight, possibly tomorrow

9:13 am

Starship #15 on launchpad
Screen capture from Labpadre launchpad live stream.

Capitalism in space: SpaceX’s 15th prototype of its Starship upper stage, is preparing to do a static fire test today, with its first test flight possibly as soon as tomorrow, though at present the FAA has not given its approval.

They have done tank tests already, and installed three upgraded Raptor engines yesterday. This spacecraft is a major upgrade from the previous prototypes, and SpaceX probably plans to eventually fly it higher and farther than the previous prototypes. Though no details about those flight plans has yet been released, the first flight will almost certainly repeat the previous flights, going up about ten miles, flipping sideways to simulate a controlled atmospheric descent, and then uprighting itself and landing vertical on the landing pad. Hopefully the upgrades will result in the first truly clean landing with this prototype.

Though the FAA under the Biden administration has seemed eager to flex its bureaucratic muscles and slow development, that NASA has chosen this vehicle as the one that will take astronauts to and from the Moon will put pressure on it to not slow things down too much.

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Ingenuity flies!

8:53 am

Ingenuity takes off!
For full images go here and here.

The first autonomous flight of the helicopter Ingenuity on Mars successfully took place early this morning, according to JPL engineers.

NASA has pulled off the first powered flight on another world. Ingenuity, the robot rotorcraft that is part of the agency’s Perseverance mission, lifted off from the surface of Mars on 19 April, in a 40-second flight that is a landmark in interplanetary aviation. “We can now say that human beings have flown a rotorcraft on another planet,” says MiMi Aung, the project’s lead engineer at the Jet Propulsion Laboratory (JPL) in Pasadena, California.

As shown by the two images taken by Perseverance above, the first flight was very simple. The helicopter simply rose about 10 feet, hovered for about 30 seconds as it swiveled 90 degrees, and then carefully descended back down. I have also embedded the video that JPL scientists have created compiling by high resolution Perseverance images below the fold.

Four more flights will next be attempted in the coming weeks.

Four further flights, each lasting up to 90 seconds, are planned in the coming weeks. In these, Ingenuity is likely to rise up to 5 metres [16 feet] above the surface and travel up to 300 metres [1000 feet] from the take-off point. Each successive flight will push Ingenuity’s capabilities to see how well the drone fares in Mars’s thin atmosphere, which is just 1% as dense as Earth’s.

» Read more

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The rovers’ view of Mars

9:10 am

The view from the top of Mont Mercou
Click for higher resolution. For original images, go here and here.

Some cool images to savor from Mars! Above is a panorama from Curiosity, created by me from two images taken by the rover’s left navigation camera today, April 18, 2021. The view is southwest towards the canyon regions where Curiosity will be heading in the coming months. Note the roughness of the ground. Travel is going to be tricky from here on out.

The photo was taken from the top of Mont Mercou, the 20-foot high outcrop that the rover spent several weeks studying at the cliff’s base. The Curiosity science team is presently preparing to drill into the bedrock at the top.

Ingenuity on the floor of Jezero Crater
Click for full image.

The photo to the right, reduced to post here, was taken by Perseverance on April 13, 2021, and looks west across the floor of Jezero crater. The high mountains in the distance are the crater’s rim. The low and much closer hill is the delta that is the rover’s primary geological target.

In the center of the picture is the helicopter Ingenuity. You can also see the tracks of Perseverance’s wheels just below it.

This will be the rover’s vantage point when Ingenuity attempts its first test flight in the early morning hours of April 19, 2021. The helicopter will head to the right once it lifts off.

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Russia hands over last rocket engines to ULA

9:20 am

In a ceremony in Russia yesterday, Roscosmos’s Energomash division completed and handed over ownership to ULA six RD-180 engines, to be used in ULA’s Atlas 5 rocket.

These are the last such engines required as part of the contract. They will also likely be the last Russian engines ULA will ever buy. The company is retiring its Atlas 5 rocket, which requires them, and replacing it with its Vulcan rocket, which will instead use Blue Origin’s BE-4 engine.

Furthermore, as of September 1st, 2021 such commercial space contracts with Russia will be difficult to obtain because of new sanctions imposed on Russia by the Biden administration.

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Ingenuity successfully completes rapid spin test

9:00 am

Ingenuity’s engineers announced this morning that yesterday the helicopter on Mars was able to successfully complete a rapid spin test of its rotary blades.

Today, April 16, on the 154th anniversary of Wilbur Wright’s birth, the Ingenuity flight team received information that the helicopter was able to complete a rapid spin test. The completion of the full-speed spin is an important milestone on the path to flight as the team continues to work on the command sequence issue identified on Sol 49 (April 9).

…The approach that led to today’s successful spin test entailed adding a few commands to the flight sequence. This approach was tested extensively on both Earth and Mars, and was performed without jeopardizing the safety of the helicopter.

They have still not set a date for flight, because they might still decide, after they have analyzed fully the results from this test, to revise the helicopter’s software and upload that change. If not the flight will be relatively soon. If so there will be a longer delay to test that software fully before flight.

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SpaceX wins competition to build Artemis manned lunar lander, using Starship

1:58 pm

Starship prototype #8 on first flight test
Starship prototype #8 on its first flight test,
December 2020

Capitalism in space: NASA has just announced that it has chosen SpaceX to build the Artemis manned lunar lander, using Starship.

The award, a $2.9 billion fixed price contract, also requires SpaceX to complete an unmanned demo lunar landing with Starship that also returns to Earth, before it lands NASA astronauts on the Moon. The contract also still retains the goal to get this to happen by 2024, though NASA official emphasized that they will only launch when ready.

After these flights the agency says it will open bidding again to the entire industry, which means that others are now being challenged to come up with something that can beat SpaceX in the future.

Nonetheless, the contract award was a surprise, as NASA originally intended to pick two teams to provide redundancy and encourage competition. Instead, the agency completely bypassed lunar landers proposed by Dynetics and a team led by Blue Origin that included Lockheed Martin and Draper.

Even more significantly, though NASA explained in the telecon that they still plan to use SLS and Orion to bring astronauts to Gateway, who will then be picked up by Starship for the landing, this decision is a major rejection of the Space Launch System (SLS), since Starship will not use it to get to the Moon, while the other two landers required it.

In fact, this decision practically makes SLS unnecessary in the Artemis program, as NASA has also awarded SpaceX the contract for supplying cargo to the Lunar Gateway station as well as launching its first two modules, using Dragon capsules and Falcon Heavy. SLS is still slated to launch Orion to Gateway, but Starship can replace Orion as well, since Starship is being designed to carry people from Earth to the Moon. This makes SLS and Orion essentially unneeded, easily abandoned once Starship starts flying.

NASA’s decision also means the Biden administration is willing to use its clout to push for Starship over SLS in Congress, which has favored SLS for years because of the pork it brings to their states and congressional districts. They apparently think that Congress is now ready to risk the end of SLS if it comes with a new program that actually accomplishes something. These developments firmly confirm my sense from February that the political winds are bending away from SLS.

This decision is also a major blow to Blue Origin and the older big space companies that Jeff Bezos’ company partnered with. Their dependence on the very costly and cumbersome SLS rocket meant that their ability to launch on a schedule and cost desired by NASA was severely limited. NASA looked at the numbers, and decided the time was right to go with a more radical system. As was noted by one NASA official during the press teleconference, “NASA is now more open to innovation.”

Based on the details announced during the announcement, NASA was especially drawn to Starship’s payload capability to bring a large payload to the Moon, at the same time it brings humans there as well. It also appears SpaceX’s recent track record of success also added weight to their bid.

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InSight pauses science operations to conserve power

8:41 am

The science team for the InSight lander on Mars have been forced to suspend science operations because dust on the solar panels is reducing the available power.

InSight’s solar panels were producing just 27% of their energy capacity in February, when winter was arriving in Elysium Planitia. So NASA decided to start incrementally turning off different instruments on the lander. Soon the robot will go into “hibernation mode,” shutting down all functions that aren’t necessary for its survival.

By pausing its scientific operations, the lander should be able to save enough power to keep its systems warm through the frigid Martian nights, when temperatures can drop to negative-130 degrees Fahrenheit. “The amount of power available over the next few months will really be driven by the weather,” Chuck Scott, InSight’s project manager, said in a statement.

InSight is still in good condition – it’s even using its robotic arm – but the risk of a potentially fatal power failure is ever-present. If the lander’s batteries die, it might never recover.

As with the rovers Spirit and Opportunity, InSight engineers have depended on periodic strong wind events to periodically clean off the solar panels. Unfortunately, these events are somewhat random, and for the past few months none have occurred.

Note: the article at the link says that winter was arriving at InSight’s location in February, but this is incorrect. InSight sits at about 4 degrees north latitude. In February the end of winter was approaching in the northern hemisphere. More to the point, sitting at the equator you wouldn’t really expect InSight to experience much seasonal changes regardless.

It therefore seems that these issues had less to do with the seasons and much more to do with the accumulating dust on the panels.

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New OSIRIS-REx photos of Bennu sample site after sample grab

1:40 pm

Nightingale before and after sample grab
Click here and here for original images.

The OSIRIS-REx science team today released the photos the spacecraft obtained in its last fly-by of the asteroid Bennu on April 7th of the Nightngale sample site, showing how it changed after the sample grab in October 2020.

The two photos to the right compare that site, with the top image taken before the sample grab and the bottom image taken on April 7th.

Comparing the two images reveals obvious signs of surface disturbance. At the sample collection point, there appears to be a depression, with several large boulders evident at the bottom, suggesting that they were exposed by sampling. There is a noticeable increase in the amount of highly reflective material near the TAG [touch-and-go] point against the generally dark background of the surface, and many rocks were moved around.

Where thrusters fired against the surface, substantial mass movement is apparent. Multiple sub-meter boulders were mobilized by the plumes into a campfire ring–like shape — similar to rings of boulders seen around small craters pocking the surface.

Jason Dworkin, the mission’s project scientist at NASA’s Goddard Space Flight Center in Greenbelt, Maryland, noticed that one boulder measuring 4 feet (1.25 meters) across on the edge of the sampling site seemed to appear only in the post-TAG image. “The rock probably weighs around a ton, with a mass somewhere between a cow and a car.”

Dante Lauretta, of the University of Arizona and the mission’s principal investigator, later pointed out that this boulder is likely one of those present in the pre-TAG image, but much nearer the sampling location, and estimates it was thrown a distance of 40 feet (about 12 meters) by the sample collection event.

The sample grab arm penetrated the surface by more than a foot, and that event is marked by that dark depression at the center of the site.

OSIRIS-REX will now prepare for its May 10th engine firing that will send it on its route back to Earth to return that sample in September 24, 2023. After that the spacecraft could be sent on another mission, this time to the potentially dangerous asteroid Apophis.

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Sierra Nevada to make its space operations a separate company

10:01 am

Capitalism in space: Sierra Nevada has decided to spin off its space operations involving Dream Chaser and its proposed private space station into a separate company called Sierra Space.

In a message to employees April 14, SNC [Sierra Nevada] Chairwoman and President Eren Ozmen said the company’s Space Systems division will become a standalone company, called Sierra Space, although remain a subsidiary of SNC.

…Ozmen provided few details about how the transition of SNC’s space business to Sierra Space would unfold, but she said it would take several months to complete. Even after the transition, Sierra Space will “continue deep cooperation and synergy” with SNC’s other business areas in aviation and defense.

My guess is that Ozmen does not want the risks of its space-related projects to impact its more reliable aviation and defense holdings. By separating it out, she can better isolate the success or failure of each. This does not necessarily mean that the space holdings are failing, only that they carry a greater financial risk.

Sierra Space’s future strongly hinges on the success of the first Dream Chaser cargo shuttle, Tenacity, whose inaugural flight has been delayed from ’21 to ’22. If that fails, all the other plans of this space division will likely fail as well. If it succeeds however the company’s financial future will be quite promising.

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Phantom Space raises $5 million in investment capital

9:52 am

Rising from the ashes: Phantom Space, the new startup smallsat rocket company created by Jim Cantrell, the former CEO of the smallsat rocket company Vector, has now successfully raised $5 million in seed money to begin development of its rocket, dubbed Daytona.

The expendable Daytona will be powered by eight Hadley engines — seven on the first stage and one on the upper stage. The engines are an example of Phantom Space’s strategy of leveraging externally developed tech; Hadleys are built by Denver-based company Ursa Major Technologies.

According to my sources, the reason Vector never flew and Cantrell and the company parted ways was that the engines they were building for the rocket ended up under-powered. It seems Cantrell has taken a different approach with his new startup by buying engines from an outside source instead of building them in house.

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Branson sells off more of his Virgin Galactic stock

9:40 am

He’s getting out while the getting is good: In the past three days Richard Branson sold another $150 million worth of his Virgin Galactic stock.

The stock price for these sales was about $27, more than twice the value when the company went public in November 2019.

Including his stock sales in May ’20, Branson has now sold about 30% of his share in the company, leaving him holding only about a 20% share. Essentially, Virgin Galactic is no longer his company.

Meanwhile, Virgin Galactic now says it will not begin tourist flights until ’22. Whether it can survive that long is another question. It certainly hasn’t delivered on any of Branson’s endless grandiose promises, beginning almost two decades ago in 2005.

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