Tag: spaceflight

The lava tubes on the western slopes of Alba Mons as potential Martian colonies

12:20 pm

Lava tubes on western flank of Alba Mons
Click for full figure.

In a new paper detailing work they first began in 2019, scientists have now carefully mapped the extensive lava tubes that appear to radially descend westward from the caldera of Alba Mons, the volcano on Mars that has the largest surface area but with a relatively low peak.

The mapped population of 331 lava tube systems has a mean length of 36.2 km, with a total length in the western flank geologic map quadrangle of ∼12,000 km. Individual lava tube systems extend up to ∼400 km, and it is likely that some of our mapped lava tubes are connected such that the total number is actually smaller and lengths (average and maximum) longer.

The map above, figure 10 of their paper, shows volcanic ridges as yellow, collapsed lava tube segments as red, and collapsed lava tube on the volcanic ridge as maroon. The wider map below, shows where this region is located, and gives the larger context.
» Read more

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Sierra Space signs partnership deal with Turkey

10:15 am

Sierra Space and ESEN (another affiliated company of Sierra Space’s mother company Sierra Nevada) have signed a partnership agreement with the Turkish Space Agency to work together over the next five years in developing Sierra Space’s Dream Chaser spacecraft and its LIFE orbital space station.

Though the agreement mentions how the three will work together to develop both Dream Chaser and LIFE, because of State department security regulations Sierra Space must be very careful about what technology it reveals to Turkey. I therefore expect the heart of the agreement are these two bullet points from the press release:

  • Space environment utilization on-orbit in LEO, including use of Sierra Space’s Large Integrated Flexible Environment (LIFE) space habitat module
  • Sending payloads to low Earth orbit (LEO) and the moon

Turkey wants to launch its own planetary probes as well as astronauts in order to compete with its Middle East neighbor the UAE. It has thus decided to pay Sierra Space to help it do that. The company can use the cargo Dream Chaser to lift smallsat payloads into orbit, and later use the manned version to lift Turkish astronauts to the LIFE station.

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Axiom leases former Fry’s retail building housing fullscale mock-up of ISS

10:00 am

Capitalism in space: The private commercial space station company Axiom has leased a former Fry’s retail building that also happens to house the only fullscale mock-up of ISS anywhere.

Axiom Space, which has a contract with NASA to test components of its planned Axiom Station at the International Space Station, has leased the former location of Fry’s Electronics in Webster, Texas to house its engineering operations. The former big-box retail store, which closed when the national chain went out of business in 2021, is unique for its football-field-long representation of the ISS.

…Contained within a building that itself was shaped to resemble oversized space station modules, the former Fry’s ISS includes most of the real complex’s major components. The mockup features the U.S. Destiny laboratory, Quest airlock and Cupola; Russia’s Zvezda service module and Zarya functional cargo block (FGB); Japan’s Kibo laboratory; and the European Space Agency Columbus module.

The space station installation also has a replica of the Canadarm2 robotic arm, a Russian Soyuz spacecraft, two models of NASA’s never-realized X-38 emergency crew return vehicle and astronauts (mannequins) in replica spacesuits. Additional oversized modules previously served as product demonstration rooms and an in-store cafe, while most of the station sat among and above aisles of computers and other devices.

Most of the mock-up hangs overhead, out of the way. In reconfiguring the building for its own use, Axiom intends to leave these mock-up units untouched. Engineers will do design work and module development of Axiom’s own station below.

Axiom’s occupation of this building is only temporary. Once its larger facility is completed in the next few years in the industrial park dubbed Houston Spaceport it will shift all operations there.

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Scientists want your help cataloging the clouds on Mars

9:49 am

In order to fully identify all the clouds seen in the sixteen years of data collected by the cloud instrument on Mars Reconnaissance Orbiter (MRO), scientists have now organized a citizen-scientist project to catalogue those clouds.

The project revolves around a 16-year record of data from the agency’s Mars Reconnaissance Orbiter (MRO), which has been studying the Red Planet since 2006. The spacecraft’s Mars Climate Sounder instrument studies the atmosphere in infrared light, which is invisible to the human eye. In measurements taken by the instrument as MRO orbits Mars, clouds appear as arches. The team needs help sifting through that data on Zooniverse, marking the arches so that the scientists can more efficiently study where in the atmosphere they occur.

You can join up by going here.

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SpaceX preps for final engine tests before first orbital Starship/Superheavy flight

9:42 am

Capitalism in space: Having moved its 7th prototype Superheavy booster to the launch pad in Boca Chica even as its installs the six Raptor engines on the 24th prototype of Starship, SpaceX is now about to begin the final engines tests prior to the first orbital Starship/Superheavy flight.

For the first time the chopstick arms on the launch tower were used to lift and place the Superheavy booster onto the pad. It is expected that static fire tests of its 33 Raptor engines could begin within the next few weeks.

The orbital Starship meanwhile is still in the assembly building, where engineers are installing its own six Raptor engines.

Though SpaceX has not made public the exact schedule of tests leading to launch, it is expected that the company will do a short static fire test program with Superheavy alone, and then do a follow-up short series of tests once the Starship prototype is stacked on top. Based on past history, if the tests show no problems SpaceX will quickly move to launch. Though there have been indications that it is targeting July, it would not be surprising if that date slips to August.

The race between Starship and SLS for which will get into orbit first appears to be tightening.

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Scientists claim rocket launches are going to damage ozone layer

9:25 am

Junk science: This week NOAA government scientists published a paper claiming that the upcoming increase in rocket launches worldwide is a threat to the ozone layer and will also — my heart be still — promote climate change!

The study found that a tenfold increase in the amount of soot injected into the stratosphere every year would after 50 years lead to an annual temperature increase in that layer of 1 to 4 degrees Fahrenheit (0.5 to 2 degrees Celsius). The stratosphere is the layer of the atmosphere just above the lowest troposphere. The study found that the projected warming would slow down subtropical jet streams, bands of strong wind circling the planet at the lower edge of the stratosphere that influence the African and Indian summer monsoons.

Warmer temperatures in the stratosphere would also degrade the protective ozone layer, which blocks harmful ultraviolet radiation from the sun from reaching the planet’s surface.

The paper’s abstract also said this:

We show that the rocket black carbon increases stratospheric temperatures and changes the global circulation, both of which cause a reduction in the total ozone column, mainly in the northern high latitudes. Comparing the amplitude of the atmospheric response using different emission rates provides insight into stratospheric adjustment and feedback mechanisms. Our results show that the stratosphere is sensitive to relatively modest black carbon injections.

This is garbage science, and I wouldn’t bother posting a link to it if other news sources weren’t promoting it. These predictions — based on a very simple computer model — are nothing more than guesses, and are apparently designed to both attack the growing space industry as well as garner funding for more such junk science, as illustrated by this quote from the NOAA press release:

“We need to learn more about the potential impact of hydrocarbon-burning engines on the stratosphere and on the climate at the surface of the Earth,” said lead author Christopher Maloney, a CIRES research scientist working in NOAA’s Chemical Sciences Laboratory. “With further research, we should be able to better understand the relative impacts of different rocket types on climate and ozone.”

For almost a half century climate scientists — many working for government agencies like NASA and NOAA — have been publishing junk papers like this, predicting climate doom in only a few decades unless we do as they say, while funneling boatloads of cash into their pockets. Almost none of those predictions have turned out to be correct.

This report is equally suspect, especially because it touts the false statistic that “launch rates have tripled in recent decades.” The number of launches has not tripled from its long-term average since Sputnik. The only way you can get manufacture that fake statistic is if you compare last year’s total (134) with the launch numbers from the early 1960s, before the space race had even begun. And while the launch numbers are likely to rise dramatically in the coming years, the numbers will still be infinitesimal compared to other industries. Going from 50-100 launches to 200-500 launches is hardly the end of the world.

It really is far past time for the press and the general public to stop listening to these fake papers.

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Virgin Orbit signs deal to launch from Brazil

9:02 am

Capitalism in space: Virgin Orbit yesterday announced that it has signed an agreement with the Brazil Space Agency (AEB) to establish facilities and conduct launches from that nation’s long unused Alcântara spaceport.

The license is granted to Virgin Orbit Brasil Ltda. (VOBRA), a newly formed and wholly owned Brazilian subsidiary dedicated to bringing the LauncherOne air-launch rocket system to the Alcântara Launch Center (Centro de Lançamento de Alcântara, CLA).

The formation of the VOBRA entity for dedicated Brazilian space activities is designed to bring an important new capability to the country and economic value to the region. Virgin Orbit’s LauncherOne system, which uses a customized 747 aircraft, Cosmic Girl, as its flying and fully reusable launch pad, will conduct launches from the existing airbase at the Brazilian site, flying hundreds of miles before releasing the rocket directly above the equator — a global sweet spot — or at other optimal locations identified for each individual mission.

Being able to launch smallsats from the equator gives Virgin Orbit the ability to place those satellites in any orbit around the Earth for far less fuel, an advantage not available to spaceports at higher latitudes.

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China and Rocket Lab complete successful launches

8:51 am

Two launches this morning herald the upcoming busy launch schedule for the last few days of June.

First China launched from its Jiuquan interior spaceport an Earth observation satellite using its Long March 4C rocket. As is usual with China, the first stage crashed on land, though no details have been provided.

Next, Rocket Lab used its Electron rocket to send NASA’s CAPSTONE cubesat lunar probe on its way to the Moon. More information here.

CAPSTONE is currently in low-Earth orbit, and it will take the spacecraft about four months to reach its targeted lunar orbit.

…CAPSTONE is attached to Rocket Lab’s Lunar Photon, an interplanetary third stage that will send CAPSTONE on its way to deep space. Shortly after launch, Lunar Photon separated from Electron’s second stage. Over the next six days, Photon’s engine will periodically ignite to accelerate it beyond low-Earth orbit, where Photon will release the CubeSat on a ballistic lunar transfer trajectory to the Moon. CAPSTONE will then use its own propulsion and the Sun’s gravity to navigate the rest of the way to the Moon. The gravity-driven track will dramatically reduce the amount of fuel the CubeSat needs to get to the Moon.

Once at the Moon, the spacecraft will enter a polar orbit varying from 1000 to 43,500 miles from the surface, with its prime mission to test operations in that lunar orbit.

Not only did NASA hire a private company, Rocket Lab, to launch it, the agency also hired a private company, Terran Orbital, to build it.

The leaders in the 2022 launch race:

26 SpaceX
21 China
8 Russia
4 Rocket Lab

American private enterprise still leads China 36 to 21 in the national rankings, and the entire world combined 36 to 34.

For the rest of June, the American companies SpaceX, Virgin Orbit, and ULA all have planned launches, as well as India. If all succeed, that would put the total launches in the first half of ’22 at 74, a pace that would almost reach 150 launches by the end of the year, smashing the annual record set last year. The U.S.’s pace in turn is likely to exceed the number of launches it completed in all of ’22 in July, with the possibility it could complete 75-80 launches by the end of the year, exceeding the U.S. annual record of 70 set in 1966.

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Did pieces of a Chinese upper stage land in middle of Mediterranean last week?

11:44 pm

According to a tweet from a Twitter account that specializes in reporting on the Chinese space program, at least one piece of the upper stage from the Long March 2F rocket that launched the present Tiangon space station crew on the Shenzhou-14 crashed into the middle of Mediterranean Sea when the stage’s orbit decayed.

Most parts burned during the reentry while small debris splashed in Mediterranean Sea around E5.2° N39.1°

According to both this Twitter site as well as the Aerospace Corporation’s re-entry site, the event occurred on June 20, 2022. The latter site however says the stage burned up over the Atlantic, though it also indicated a one hour margin of error both before or after that time. If the stage thus stayed up just a bit longer, its orbit would have brought it down exactly where the former site states.

If this is so, it indicates that the Chinese either could not or made no effort to control the de-orbit, something that should be standard for any upper stage that has mass that could hit the ground.

Hat tip from reader Jay.

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A thick and syrupy flow on Mars

1:06 pm

A thick and syrupy flow on Mars
Click for full image.

Overview map

Cool image time! The photo above, rotated, cropped, and reduced to post here, was taken on March 5, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists label as a “viscous flow feature,” which is another way of saying the flow was thick and syrupy.

Nor is such a flow unusual in this area of Mars. It is located in a region of chaos terrain dubbed Protonilus Mensae, which is also the central mensae region in the 2,000-mile-long strip in the northern mid-latitudes of Mars I label glacier country. The overview map above of Protonilus Mensae — covering about 500 miles in width — shows how common such flows are in this place. The black rectangles mark the locations of other cool images I have featured, as follows:

The red rectangle indicates the location of today’s cool image.

The glacial aspect of everything in this region is even more emphasized by the wider view provided by MRO’s context camera below.
» Read more

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New research suggests flowing water existed intermittently on Mars from 2.5 to 3.6 billion years ago.

9:26 am

Based on a study of alluvial fans on Mars, river sediment thought to have been placed at the foot of mountains, scientists have concluded that liquid water could have been flowing from as 2.5 to 3.6 billion years ago.

“We’ve known for decades that Mars had rivers and lakes around 3.5 billion years ago, but in the past few years there has been a growing body of evidence that substantial amounts of liquid water continued to erode the Martian surface for hundreds of millions of years,” said Morgan, lead author on “The global distribution and morphologic characteristics of fan-shaped sedimentary landforms on Mars” that appears in Icarus. “Water-formed landforms, such as river deltas and alluvial fans, are the most unambiguous markers of past climate. So we conducted a global survey for these features and explored patterns in their distribution and morphologic properties.”

Morgan and co-authors including PSI Senior Scientist Alan Howard found that alluvial fans are found at lower elevations than the more ancient valley networks, suggesting that stable liquid water became restricted to lower, warmer regions as Mars cooled and dried.

…What is particularly interesting about the Martian fans is that many formed much later than the valley networks, which have long been considered the strongest evidence for surface water on early Mars. Valley networks largely date to around 3.6 billion years ago, but alluvial fans date to 2.5 to 3 billion years ago.

This research merely increases the fundamental geological mystery of Mars. While the surface evidence strongly tells us that liquid water once flowed on the surface, no climate model exists that satisfactorily makes that possible. The atmosphere appears to have always been too cold and thin for liquid water.

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NASA completes suborbital launch from commercial spaceport in Australia

8:59 am

Early this morning NASA successfully completed its first rocket launch from Australia since 1995, launching a suborbital payload from a new commercial spaceport on the northern coast of Australia.

The rocket is Nasa’s first of three to blast off from the newly constructed Arnhem Space Centre on the edge of the Northern Territory. Scientists hope it will help them study the impact of a star’s light on the habitability of nearby planets.

Onlookers who travelled to the remote site glimpsed the rocket for only about 10 seconds before it shot out of view.

After a short fifteen minute flight the sounding rocket and payload were recovered. The next suborbital launch is scheduled for July 4th.

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Iran claims it has completed a second suborbital test of new rocket

8:48 am

According to Iran’s state-run press, it yesterday successfully completed the second suborbital test of its new Zuljanah rocket.

The announcement said nothing about where or when the launch took place. According to this Iranian report, the rocket “has two solid propulsion phases and a single liquid propulsion phase.”

The rocket had completed a suborbital test in January 2021. In March 2022 satellite imagery suggested a second test had exploded on the launchpad sometime in late February.

Since the video of the launch provides no specific information about where or when, it is quite possible it is simply footage from the January 2021 launch. It will require orbital imagery to confirm this claim.

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German smallsat rocket startup signs orbital tug startup as launch customer

9:54 am

Capitalism in space: Isar, one of three German smallsat rocket companies hoping to launch their own rockets, has won a launch contract from D-Orbit, one of three companies building orbital space tugs designed to provide in-orbit transportation to cubesats.

Isar Aerospace announced today that it has entered into a firm launch services agreement with space infrastructure pioneer D-Orbit. The company’s launch vehicle Spectrum, which is developed for small and medium satellites and satellite constellations, will launch D-Orbit’s ION Satellite Carrier as a primary customer to a Sun-synchronous orbit from its launch site in Andøya, Norway with a launch term starting in 2023.

This is Isar’s third launch contract. The company has also raised almost $200 million in investment capital in the past year and a half.

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Blue Origin abandons plans to land New Glenn first stages on purchased cargo ship

9:31 am

Capitalism in space: This week it was revealed that Blue Origin has abandoned its plan to use a purchased and refurbished cargo ship as an ocean landing platform for the first stages of its New Glenn rocket.

The company had bought the ship in 2018, when it thought New Glenn would be flying by 2020, and planned to reconfigure it by covering it with a giant landing pad. It appears the company abandoned that plan because of cost. What it plans to do instead to provide New Glenn first stages a place to land remains unclear.

Some historical details that provide some context and might explain the change in plans. In 2016 Blue Origin was launching test flights of its New Shepard suborbital craft on almost a monthly basis. It appears to have an aggressive attitude towards development, with New Glenn aiming for a 2020 launch.

In 2017 Jeff Bezos hired Bob Smith to take over as Blue Origin’s CEO. At that point development slowed to a crawl. For the next four years New Shepard test flights dropped to about one per year. Also at that time development of the BE-4 rocket engine needed for both New Glenn and ULA’s Vulcan rocket also slowed to a crawl, apparently because the company’s management would not commit funds to buy extra engines for testing.

In 2018 Blue Origin signed a deal with the Air Force, thus delaying New Glenn’s first launch by a year. The deal appeared to stem from a desire of Blue Origin management to get government contracts and money first rather than committing any company money to development, the approach used by older big space companies for decades. While it reduces risk, this approach also makes the government a partner in development, which has historically slowed all development while significantly raising costs.

That same year it bought this ship as the rocket’s landing pad, though relatively little work is done on it for years.

In 2021 Jeff Bezos stepped down as Amazon CEO to focus more time on Blue Origin. Suddenly, New Shepard ups its launch rate, and finally starts flying passengers. At the same time, the testing of the BE-4 engine appears to accelerate.

Now Blue Origin is abandoning this ship that was purchased after Bob Smith took over.

Does one get the feeling that Bezos might have finally realized that the management under Smith was not very effective? Smith is still Blue Origin’s CEO, but one wonders how long this will last.

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Psyche will not launch as scheduled

9:06 am

NASA officials yesterday confirmed that because of software issues its asteroid mission Psyche will not launch as scheduled this year.

Due to the late delivery of the spacecraft’s flight software and testing equipment, NASA does not have sufficient time to complete the testing needed ahead of its remaining launch period this year, which ends on Oct. 11. The mission team needs more time to ensure that the software will function properly in flight.

…As the mission team at NASA’s Jet Propulsion Laboratory in Southern California began testing the system, a compatibility issue was discovered with the software’s testbed simulators. In May, NASA shifted the mission’s targeted launch date from Aug. 1 to no earlier than Sept. 20 to accommodate the work needed. The issue with the testbeds has been identified and corrected; however, there is not enough time to complete a full checkout of the software for a launch this year.

NASA management will conduct a review to understand what caused the problem.

As for when Psyche can next launch and reach the asteroid Psyche, the next launch windows in ’23 and ’24 will not arrive at the asteroid until ’29 or ’30 respectively, a flight time that is about two years longer than what the ’22 launch would have been.

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Perseverance’s first climb

12:03 pm

Perseverance's first climb
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken by the high resolution camera on the Mars rover Perseverance on June 16, 2022, shortly after it began its first climb up from the generally flat floor of Jezero crater and onto the delta that once in the far past flowed through a gap into that crater.

I have rotated the image about 8.5 degrees to make horizontal the crater floor and the distant rim of the crater (barely visible through the atmosphere’s thick winter dust). This shows that the rover was then climbing what appears to be a relative low angle grade, hardly as challenging as the serious grades that Curiosity has been dealing with now for the past two years in the foothills of Mount Sharp. Nonetheless, Perseverance has begun climbing.

To see where the rover is see the overview map from the start of this week. Unfortunately, I have been unable to determine the direction of this photo. It could be looking west, south, or east, based on features inside Jezero Crater. I therefore cannot tell you the distance to the rim, which depending on the direction, could be from five to twenty-five miles away.

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NASA now targeting late August launch of SLS

11:35 am

NASA officials today confirmed that they are satisfied with the results from this week’s incomplete dress rehearsal countdown of the SLS rocket, and are targeting a late August launch of SLS.

NASA officials have reviewed the data collected during the test run and decided that a leaky hydrogen valve was not significant enough to force a delay in the launch of Artemis I, an uncrewed mission planning to orbit the moon and return to Earth. It’s the first step toward putting humans back on the moon for the first time since Apollo 17 in 1972.

“The team is now ready to take the next step and prepare for launch,” said NASA’s deputy associate administrator Tom Whitmeyer.

NASA officials said they will roll the massive Space Launch System rocket back to the Vehicle Assembly Building, where the valve’s faulty seal will be replaced. Rollback is slated for Friday July 1, though weather concerns could push that back.

SLS won the five-plus year race with the Webb telescope on which would have the most delays and launch last. Now the race will be between SLS and SpaceX’s Starship/Superheavy. Which will launch first this summer? In a rational world, SLS should win hands down. It has been in development since 2004, while Starship only began design work in 2017.

This is not a rational world, however, and SLS’s long gestation had little to do with designing a rocket and everything to do with politics and a corrupt Congress and an incompetent NASA. The rocket that has come out of this is thus difficult to operate and incredibly cumbersome. Its components have also not been tested thoroughly.

SpaceX meanwhile has been designing and building its heavy-lift rocket with only one goal: the rocket must be efficient to operate.

I predict Starship will reach orbit first, though if it doesn’t it most likely will be because SpaceX finds it needs to do more ground tests and revisions, not because SLS has surged ahead. And regardless, Starship will likely fly many times in the next three years, while SLS will only get off the ground once.

More important, the chances of SLS and Orion working perfectly throughout that that lunar orbit mission seem almost impossible, based on track record during the past eighteen years of both programs. Expect some issues to crop up, first during the launch countdown, forcing several scrubs, and then during the mission itself. None might be mortal, but all will raise questions whether it would be wise to put humans on this rocket and capsule on its next flight, and attempt to take them to the Moon.

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NASA halts sale of Apollo 11 Moon dust, claiming ownership

10:37 am

We’re here to help you: The auction of a tiny amount of Moon dust brought back by Apollo 11 and used in a post-flight experiment using German cockroaches has been canceled because NASA claimed ownership of that dust and demanded its return.

“NASA asserts legal ownership of the materials consisting of the Apollo 11 lunar dust experiment … based upon the information and documentation provided in the description of the lot and evidence regarding NASA’s contemporaneous contracting practices,” an attorney in NASA’s Office of the General Counsel wrote RR Auction in a letter on Wednesday, a week after first reaching out to the firm. “It is clear and undeniable that the materials consisting of the experiment are owned by NASA.”

The lot under contention comprises what remains from the late Marion Brooks’ research into the physiological effects of lunar material on Blattellas germanica, or German cockroaches. The insects had been fed moon dust by NASA scientists in the immediate aftermath of the 1969 Apollo 11 lunar landing mission. After no ill-effects were seen while astronauts Neil Armstrong, Buzz Aldrin and Michael Collins were held in quarantine, the (now dead) cockroaches were handed off to Brooks, an entomologist from the University of St. Paul, for more thorough study.

Included in the auction was a small vial of moon dust that Brooks’ had carefully extracted from the cockroaches’ corpses, as well as three of the remaining (dead) cockroaches and two boxes of tissue slides for microscopic study.

It appears the dust had been in the Brooks family possession for more than forty years, then sold by them at auction in 2010 for $10,000. Under standard adverse possession law, you lose ownership if you don’t claim that right after twenty years. It would thus seem that NASA’s claim is bogus.

But then, NASA as a government agency doesn’t believe the standard laws apply to it. It continues to demand that all Apollo lunar material belongs to it and be returned, no matter what the circumstances it was originally handed out by the agency and no matter how long ago.

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LRO scientists locate impact on Moon from rocket stage believed to be Chinese

10:26 am

Impact, before and after

The science team for Lunar Reconnaissance Orbiter (LRO) today released images identifying the location on the Moon where a mystery rocket stage crashed in March 2022.

The image to the right shows the before and after LRO images, with the impact at the center of the second photo, showing as two superimposed craters. Since the sunlight in the second image come from the opposition direction as the first, the shadows in all previously existing craters are reversed.

Surprisingly the crater is actually two craters, an eastern crater [59 feet diameter] superimposed on a western crater [52 feet diameter]. The double crater was unexpected and may indicate that the rocket body had large masses at each end. Typically a spent rocket has mass concentrated at the motor end; the rest of the rocket stage mainly consists of an empty fuel tank. Since the origin of the rocket body remains uncertain, the double nature of the crater may help to indicate its identity.

No other rocket body impacts on the Moon created double craters. The four Apollo SIV-B craters were somewhat irregular in outline (Apollos 13, 14, 15, 17) and were substantially larger [>115 feet in diameter] than each of the double craters. The maximum width [95 feet] of the double crater of the mystery rocket body was near that of the S-IVBs.

Though the evidence strongly points to this stage being from China, that fact is not certain, and China denies that conclusion.

Regardless, the unexpected double nature of the impact only increases the mystery, as it suggests that rocket stage had a mass distribution different than past stages.

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NASA blocks Starship/Superheavy launches at SpaceX’s new Florida launchpad

9:37 am

Capitalism in space: NASA officials revealed yesterday that it will not allow any Starship/Superheavy launches at SpaceX’s new Florida launchpad, at least for the moment, because of the threat a launchpad failure might have on the launchpad SpaceX uses to launch manned Falcon 9 missions to ISS.

The NASA statement said the agency “is responsible for ensuring SpaceX remains compliant with the requirements of the property agreement for the use of Launch Complex 39A.”

“These requirements include those related to construction, safety and environmental conditions,” the statement said. “At this time, NASA has only provided approval to build. Additional review for hazards, operational impacts and supportability will be required prior to a launch.”

The new Starship launchpad is 1,000 feet away from pad 39A, which is SpaceX’s manned Dragon launchpad. NASA management thinks this is too close. However, the managers have also not ruled out future launches, only that they wish to do a thorough review of the issue with SpaceX.

Because NASA and the federal government is also relying on Starship to land its astronauts on the Moon, it can’t block Starship flights outright. It could be however that this issue might shift Starship operations back to Boca Chica, after federal government opposition there forced SpaceX to shift more operations to Florida.

In other words, the government wants its cake and eat it to. Some factions within the Biden administration and the Washington bureaucracy want to block Starship, others want it to fly. The result is a tug-of war, with SpaceX in the middle.

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OneWeb to resume satellite launches this year, complete constellation by mid-2023

9:24 am

Capitalism in space: According to one OneWeb official at a conference yesterday, the company now expects to resume launching its satellites on SpaceX and Indian rockets by the fourth quarter of this year and will complete its constellation by the second quarter of next year.

Launches were suspended when Russia refused to do a launch — and confiscated the 36 satellites — after Europe imposed sanctions in response to the Russian invasion of the Ukraine.

Speaking at the Fourth Summit for Space Sustainability by the Secure World Foundation and the U.K. Space Agency, Maurizio Vanotti, vice president of space infrastructure development and partnerships at OneWeb, said new launch agreements with SpaceX and NewSpace India Ltd. (NSIL) would allow the company to launch the remaining satellites of its first-generation system by the second quarter of 2023.

“Our plan is to be back on the launch pad in quarter four, after the summer, and to complete deployment of the constellation by quarter two next year,” he said. It will take several months after that final launch for the satellites to move to their operational orbits, he added. “We’re going to be in service with global coverage, 24/7, by the end of next year,” he said.

At present OneWeb has not revealed the breakdown of launches from the two companies.

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Blue Origin’s BE-4 engine set for “commissioning” tests

1:29 pm

Capitalism in space: According to a tweet from Blue Origin on June 21, 2022, engineers have finally installed a flight-worthy engine on the test stand in Huntsville for static fire “commissioning” tests.

This is an engine that was supposed to be delivered to ULA for its new Vulcan rocket more than two years ago. With final engine tests only beginning now, it likely means the engine will not be delivered for at least several more months.

ULA will then have to install it in the rocket, and do its own fueling and static fire tests. All this suggests that a Vulcan launch before the end of this year is almost impossible.

When Blue Origin’s own New Glenn rocket will fly using the BE-4 is utterly unknown. ULA at least has built a full-scale test version of Vulcan and done launch countdown rehearsals in order to iron out issues with its launchpad and ground systems. Blue Origin has done none of this.

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A major update from Curiosity’s science team

10:13 am

Panorama of Mars
Click for full image.

layered flaky rocks
Click for full image.

In a press release today, the Curiosity science team provided a major update on the rover’s recent travels in the mountain foothills of Gale Crater.

First and foremost was the new information about the rover’s wheels, which was buried near the bottom of the release:

The rover’s aluminum wheels are … showing signs of wear. On June 4, the engineering team commanded Curiosity to take new pictures of its wheels – something it had been doing every 3,281 feet (1,000 meters) to check their overall health. The team discovered that the left middle wheel had damaged one of its grousers, the zig-zagging treads along Curiosity’s wheels. This particular wheel already had four broken grousers, so now five of its 19 grousers are broken.

The previously damaged grousers attracted attention online recently because some of the metal “skin” between them appears to have fallen out of the wheel in the past few months, leaving a gap.

The team has decided to increase its wheel imaging to every 1,640 feet (500 meters) – a return to the original cadence. A traction control algorithm had slowed wheel wear enough to justify increasing the distance between imaging.

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Blue Origin determines New Shepard ticket prices by who you are and what you can pay

9:08 am

From the first commercial launch of Blue Origin’s suborbital New Shepard spacecraft in 2021, the company has refused to reveal what its standard price is for a ticket.

Now, after five flights and fourteen passengers, one journalist has determined that the company does not appear to have a standard price, but instead determines its prices depending on who you are and what you can pay.

Blue Origin doesn’t advertise price information on its flight reservation page. Passengers say they have paid from zero to nearly $30 million. Industry insiders say Blue Origin’s ticket price is tailored to individual passengers based on a variety of factors.

“It’s not about money; it’s about who you are, your social capital, whether you align with their launch purposes. It’s kind of a package deal,” said Roman Chiporukha, cofounder of SpaceVIP, a platform that helps the wealthy book space trips, including Blue Origin’s. Blue Origin declined to discuss its pricing strategy. [emphasis mine]

How very socialist of Blue Origin, to treat people differently depending on such factors. Under this policy, people have paid from zero to $28 million per ticket.

The ticket policy itself is not illegal — as long as the price differences are not related to race, ethnicity, sex, or religion. It is just unseemly to consider a person’s wealth and status in determining a price.

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China and Europe complete launches

8:47 am

In the past 24 hours both Europe and China successfully completed launches.

First Arianespace’s Ariane-5 rocket yesterday launched two commercial communications satellites, for Malaysia and India. With this flight the Ariane-5 rocket has only four flights to go before it is retired and replaced with ArianeGroup’s not-yet flown Ariane-6 rocket.

Then, China today used its Long March 2D rocket to launch three remote-sensing satellites.

The leaders in the 2022 launch race:

26 SpaceX
20 China
8 Russia
3 Rocket Lab
3 ULA
2 Europe (Arianespace)

The U.S. still leads China 35 to 20 in the national rankings, and the entire world combined 35 to 33.

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A snakelike Martian ridge

1:21 pm

A snakelike Martian ridge
Click for full image.

Cool image time! The photo to the right, rotated, cropped, and reduced to post here, was taken on November 22, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the science team labeled a sinuous ridge. Make sure you also look at the full image. The ridge goes on to the south, but then fades way as an almost perfect ramp, only to have another even more wiggly but thinner north-south ridge begin only a few feet to the west.

Sinuous ridges like this are found in many places on Mars. Almost always their origin is thought the result of a former river channel that became a ridge when the surrounding softer material eroded away.

That explanation however does not seem to work for this ridge. It has too many other inexplicable features. For example, note how the peak of the ridge smoothly transitions from sharp to flat-topped. It has a soft appearance that is strengthened by the gap near the top.

It is almost as if this ridge is a kind of elongated sand dune! And guess what: The overview map below gives that explanation some believability.
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InSight team decides to shorten lander’s life to operate seismometer longer

9:49 am

The InSight science team has decided to continue to operate the lander’s seismometer through August rather than turning it off at the end of June, even though that longer use will drain InSight’s batteries sooner and kill the lander shortly thereafter.

The previous plan would have allowed the lander to survive through the end of the year, but would have meant no earthquake data would have been gathered after June.

To enable the seismometer to continue to run for as long as possible, the mission team is turning off InSight’s fault protection system. While this will enable the instrument to operate longer, it leaves the lander unprotected from sudden, unexpected events that ground controllers wouldn’t have time to respond to.

“The goal is to get scientific data all the way to the point where InSight can’t operate at all, rather than conserve energy and operate the lander with no science benefit,” said Chuck Scott, InSight’s project manager at NASA’s Jet Propulsion Laboratory in Southern California.

Apparently they have realized that it is now very unlikely that a dust devil will come by and clear the dust from InSight’s solar panels, so keeping the spacecraft alive longer — but getting no data — does not make sense.

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The battlelines and alliances shift over big satellite constellations in space

9:41 am

Two stories today show that the competition for frequency use and orbital territory in space are shifting, partly because of international politics and partly due to changes in technology.

First the harsh conflict between OneWeb and Starlink over the positioning and frequency use of their constellations in orbit now appears to have vanished.

The companies have written a joint letter to the U.S. Federal Communications Commission (FCC), declaring harmony in low Earth orbit (LEO) for spectrum coordination between their respective current and next generation broadband constellations.

In the letter, which is dated June 13, SpaceX and OneWeb request that the FCC disregard previously filed dissenting comments regarding spectrum coordination in LEO. SpaceX and OneWeb both submitted proposals for their first-generation internet constellations to the FCC in 2016, followed by a second round of proposals in 2020 for each company’s next-generation broadband satellites. Simultaneously, both SpaceX and OneWeb submitted complaints with the FCC in an attempt to get a leg up on each other. Now, it seems the companies are operating on friendlier terms.

The article I think correctly speculates that this new-found cooperation probably resulted from OneWeb’s need to use SpaceX Falcon 9 rockets to get its satellites in orbit, caused by Russia’s confiscation of 36 OneWeb satellites in response to Europen sanctions over the Ukraine War. During the launch negotiations I am sure SpaceX demanded both iron out their differences relating to the satellite constellations. While SpaceX might have been able to gain some advantages in that negotiation due to its strong position, I also suspect that OneWeb has not been hurt in any major way.

In the second story, SpaceX ramped up its opposition to a Dish 5G system in a wavelength used by its Starlink satellties.
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Psyche software issue could prevent launch this year

9:08 am

In a remarkably brief announcement on the Psyche website, the engineering team suggested that the flight software issue that forced a seven week delay in its launch might now prevent a launch this year.

This is the entire announcement:

NASA’s Psyche mission team continues to assess ongoing issues with the spacecraft’s flight software. The team is evaluating its ability to meet a schedule to launch in 2022 – the current launch period is Sept. 20 to Oct. 11. If it is determined that launch in 2022 is not possible, a full range of actions for how to proceed will be considered.

This year’s launch window would have gotten the spacecraft to the asteroid Psyche in 2026. Since this flight path required a fly-by of Mars, it is very unclear when another launch window will be available.

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