Tag: spaceflight

Starship #10 completes another static fire test after quick engine swap

4:44 pm

Starship #10 at 2nd static fire test
Screen capture from LabPadre live stream.

Capitalism in space: In what to me appears a remarkable tour de force, SpaceX today completed the second dress rehearsal countdown and static fire test of its tenth Starship prototype.

What made this a tour de force is that the previous test, only two days before, had found issues with one of the prototype’s three Raptor engines. In less than two days, SpaceX engineers were able to replace that engine and fire up the rocket again.

Compare that to the operations of Boeing and NASA in trying to do a single static fire test of SLS’s core stage. Preparations for the first test took months, and when this had an issue it is now going to take at least a month (if not more) before they can attempt a second test.

If today’s Starship static fire test came up clean with no problems, a test flight to about 30 to 40,000 feet could come as early as tomorrow.

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First launch of Blue Origin’s orbital rocket delayed to ’22

3:48 pm

Capitalism in space: In what had increasingly appeared likely in recent months, Blue Origin today announced that it is delaying the first launch of its orbital New Glenn rocket from late this year to sometime in ’22.

Blue Origin noted that the updated timeline follows the U.S. Space Force to stop its support for the New Glenn development effort as part of its procurement program for national security launches. That support, which could have added up to $500 million, was closed out at the end of last year.

The Space Force ended up choosing United Launch Alliance and SpaceX for the next round of national security launches. Jarrett Jones, Blue Origin’s senior vice president for New Glenn, told Space News that losing out on that round of launch contracts represented a $3 billion hit to anticipated revenue, and forced the company to “re-baseline” its development plans.

Personally I think this excuse is absurd. Jeff Bezos has been investing about $1 billion per year in Blue Origin. Moreover, in its announcement the company claimed it has invested $2.5 billion of that money in developing New Glenn. This is almost as much as SpaceX has raised to build Starship/Super Heavy, which is in development and in only about two years has already produced multiple prototypes and two test flights. Moreover, SpaceX developed Falcon Heavy for about a half billion dollars, and did it in less than seven years.

New Glenn has been in development for more than four years, and we have yet to even see it assembled in any form at all. The loss of that government military contract should have made no difference if Jeff Bezos and Blue Origin were really serious about building this rocket. He has given the company more than enough investment capital to get it done. They have just not delivered so far.

If I was Bezos, I would be taking a very hard look at the management at Blue Origin, with the intent to make some significant changes.

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Searching for ice in the Martian low latitudes

12:31 pm

Low latitude crater with intriguing debris on its floor
Click for full image.

Today’s cool image well illustrates the effort of planetary scientists to map out the range of buried ice on the Martian surface. Taken on December 13, 2020 by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and rotated, cropped, and reduced to post here, it shows a 3.5-mile-wide crater located in the southern cratered highlands, but for those cratered highlands at the very high northern latitude of 24 degrees.

The black streaks on the crater’s interior slopes are probably slope streaks, but these are not the subject of this article. Instead, it is the material that covers the crater’s floor. These features resemble the glacial fill material that scientists have found widespread in the latitude bands between 30 to 60 degrees latitude. However, this crater is farther south, where such ice would not be stable and should have sublimated away.

Could there still be ice here? I emailed the scientist who requested the photo, Colin Dundas of the U.S. Geological Survey’s Astrogeology Science Center in Arizona, and asked him what I was looking at. His answer:
» Read more

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China commits to building its own SLS

9:16 am

The new colonial movement: China yesterday officially announced that it has approved construction of a heavy-lift rocket, dubbed Long March 9, that would by 2030 be able to put 140 tons into orbit.

The rocket is planned to have a lift capacity of 140 metric tons, with the capability of sending 50 or more tons into lunar orbit. It would be an immense vehicle, with a 10-meter diameter core and 5-meter side boosters. China would also like to eventually make the rocket, or at least part of it, reusable.

China is also developing another large rocket more comparable to the Falcon Heavy, though this other rocket has no name and information about it is more scarce.

Both projects indicate the long term commitment of the Chinese government to its space program. They also indicate that the present-day international competition to get into space is fueling far more development than the last forty years of international cooperation.

Whether these giant government rockets from China will be practical and efficient is an unanswered question. Just building something to compete is not the same thing as actually competing. The rockets have to be affordable, with the ability to launch frequently to make in-space exploration possible. If not, they will nothing more than big photo ops for incompetent politicians, kind of like SLS is for the U.S.

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Another detailed essay demanding SLS be cancelled

5:21 pm

Link here.

The analysis is detailed, thoughtful, thorough, and technical. It is worthwhile to read every word, slowly, carefully, and with an open-mind. The lead:

The SLS axiomatically cannot provide good value to the US taxpayer. In that regard it has already failed, regardless of whether it eventually manages to limp to orbit with a Falcon Heavy payload or two.

The question here is whether it is allowed to inflict humiliation and tragedy on the US public, who so richly deserve an actual legitimate launch program run by and for actual technical experts.

The best time to cancel SLS was 15 years ago. The second best time is now.

While this essay is brilliant, its real significance is that it is another data point in the growing sense I have that the Washington community is preparing itself for cancelling SLS at last. Such an essay would not have been written or paid attention to five years ago. I know. I wrote my own and got no traction.

Today attention is getting paid. More importantly, we are seeing a range of people and news organizations advocating similar anti-SLS positions, positions that would have been thought politically impossible only a few short years ago.

The clock is ticking on SLS. If any of its planned upcoming tests or flights fail, it will face a firestorm of hostility. And even if they succeed, its days appear numbered.

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Parker looks at Venus

2:57 pm

Venus as seen by the Parker Solar Probe
Click for full image.

During its July 2020 fly-by of Venus, the Parker Solar Probe used its wide field camera to snap a picture of the planet, cropped and reduced to post here on the right.

The photo surprised the scientists in that it apparently was able to detect some major surface features through Venus’ thick cloud cover.

WISPR is designed to take images of the solar corona and inner heliosphere in visible light, as well as images of the solar wind and its structures as they approach and fly by the spacecraft. At Venus, the camera detected a bright rim around the edge of the planet that may be nightglow — light emitted by oxygen atoms high in the atmosphere that recombine into molecules in the nightside. The prominent dark feature in the center of the image is Aphrodite Terra, the largest highland region on the Venusian surface. The feature appears dark because of its lower temperature, about 85 degrees Fahrenheit (30 degrees Celsius) cooler than its surroundings.

That aspect of the image took the team by surprise, said Angelos Vourlidas, the WISPR project scientist from the Johns Hopkins Applied Physics Laboratory (APL) in Laurel, Maryland, who coordinated a WISPR imaging campaign with Japan’s Venus-orbiting Akatsuki mission. “WISPR is tailored and tested for visible light observations. We expected to see clouds, but the camera peered right through to the surface.”

“WISPR effectively captured the thermal emission of the Venusian surface,” said Brian Wood, an astrophysicist and WISPR team member from the U.S. Naval Research Laboratory in Washington, D.C. “It’s very similar to images acquired by the Akatsuki spacecraft at near-infrared wavelengths.”

This surprising observation sent the WISPR team back to the lab to measure the instrument’s sensitivity to infrared light. If WISPR can indeed pick up near-infrared wavelengths of light, the unforeseen capability would provide new opportunities to study dust around the Sun and in the inner solar system. If it can’t pick up extra infrared wavelengths, then these images — showing signatures of features on Venus’ surface — may have revealed a previously unknown “window” through the Venusian atmosphere.

The streaks in the picture come from cosmic rays.

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Land of rovers

1:30 pm

Overview map

Today’s cool image is in honor the two newest Martian rovers, Perseverance (which now sits quite comfortably in Jezero Crater, ready to begin what will probably be more than a decade of exploration on the Martian surface) and China’s yet-to-be-named rover (set to hopefully soft land on Mars some time in late April).

The overview map to the right shows us the region where both rovers shall wander. The black box in Jezero Crater is where Perseverance now sits. The red cross about 1,400 miles away is the believed landing zone for China’s rover, located in Utopia Planitia at about 25 degrees north latitude. The Viking 2 landing site is just off the edge of the northeast corner of the map.

The latitude of 30 degrees, as indicated by the white line, is presently an important dividing line based on our present knowledge of Mars. South of that line the terrain is generally dry, though there is evidence that water in some form (liquid or ice) was once present. North of that line scientists have found evidence of considerable ice below the surface, with its presence becoming increasingly obvious the farther north you go.

Today’s cool image, shown below, is north of that line at 33 degrees latitude in Utopia Planitia, and is marked by the white cross, about 500 miles to the northwest of the Chinese rover’s landing site.
» Read more

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India officially delays both its manned mission and next lunar lander

9:47 am

The new colonial movement: India has now officially delayed the launch of both its manned mission Gaganyaan as well as its next lunar lander/rover Chandrayaan-3.

They hope to launch an unmanned test Gaganyaan mission before the end of this year, but the manned mission will not occur until after a second unmanned mission scheduled very tentatively in the 2022-2023 time frame.

As for Chandrayaan-3, they had initially hoped to launch it last fall, but they panic over the coronavirus that shut down their entire space industry for a years has now apparently pushed that launch back ’22, a delay of more than a year.

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Tianwen-1 enters parking orbit around Mars

9:37 am

The new colonial movement: According to the Chinese state-run press, the Tianwen-1 orbiter has entered the parking orbit around Mars that it will use for the next three months to conduct reconnaissance of its lander/rover’s landing site.

At 6:29 a.m. (Beijing Time), Tianwen-1 entered the parking orbit, with its closest point to the planet at 280 km and the farthest point at 59,000 km. It will take Tianwen-1 about two Martian days to complete a circle (a Martian day is approximately 40 minutes longer than a day on Earth), the CNSA said.

Tianwen-1, including an orbiter, a lander and a rover, will run in the orbit for about three months.

The CNSA added that payloads on the orbiter will all be switched on for scientific exploration. The medium-resolution camera, high-resolution camera and spectrometer will carry out a detailed investigation on the topography and dusty weather of the pre-selected landing area in preparation for a landing.

China has also begun prepping the rocket that will launch Tianhe, the first module in its space station, sometime this spring. A total of eleven launches are planned over the next two years to assemble the station.

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First air leak crack on ISS has not grown

9:25 am

A inspection of the first air leak crack that had been found and patched in the Zvezda module on ISS last year has found that it apparently not increased in size since then.

The size of a crack in the intermediate chamber of the Russian Zvezda module aboard the International Space Station (ISS) remains unchanged, cosmonaut Sergei Ryzhikov reported to Russia’s Flight Control Center on Wednesday. “It [the length] has not changed. As in the previous measurements, I do not see any changes,” Ryzhikov said during his talks with Mission Control broadcast on NASA’s website.

On February 23, the cosmonaut carried out work with a microscope to trace another possible air leak. The photos of the work were transmitted to Earth and the video from GoPro cameras will be sent via the Russian broadband communications system. After completing the work, the cosmonaut reinstalled the patch in the area of the crack.

This Russian report is decidedly unclear about some details. Though it appears the astronaut was using the microscope to inspect another leak, he also apparently removed the patch on the first leak to check the crack for any changes, then replaced it. How one removes and replaces such a patch is a puzzle however. Such things are generally not removable.

No matter. The important detail is that the crack has not grown. If it was a stress fracture the recent dockings of spacecraft to the nearby port might cause it to grow. That it has not is good news.

The bad news is that the inspection did not find the second small leak that is thought to be in this same Zvezda module.

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Starship #10 completes launch dress rehearsal & static fire test

9:18 pm

Starship #10 at static fire test
Screen capture from LabPadre live stream.

Capitalism in space: Starship #10 today successfully completed a launch dress rehearsal and static fire test in preparation for a planned 30 to 40 thousand foot test flight, possibly as soon as February 25th.

The Starship SN10 (“Serial No. 10”) vehicle performed its first “static fire” test on Tuesday (Feb. 23), lighting up its three Raptor engines for a few seconds at 6:03 p.m. EST (2303 GMT) at SpaceX’s South Texas site, near the Gulf Coast settlement of Boca Chica Village.

Static fires, in which engines briefly ignite while a rocket stays anchored to the ground, are a common preflight checkout for SpaceX. If all went well with today’s test, SN10 remains on track to launch soon — perhaps as early as Thursday (Feb. 25) — on a 6-mile-high (10 kilometers) demonstration flight into the South Texas skies.

I personally think it would be quite ironic if this Starship flies on the same day the second SLS static fire test had been originally scheduled but postponed. The contrast between the two development programs continues to be stark and astonishing. While one program has been flying test articles repeatedly as well as doing numerous engine and tank tests, the other has had trouble getting one static fire test completed without a hitch.

UPDATE: Apparently they have decided to swap out one Raptor engine based on the results of the static fire test, and thus will not do a flight tomorrow.

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Martian pits or dark splotches?

11:37 am

Martian pits or dark splotches?
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken on January 2, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a windswept sandy region of ridges and dunes with two dark features nestled between ridges.

What are these dark patches? At the available resolution they appear to be deep pits, with the one on the right having a significant overhang. And if these are pits, they would appear significantly different than most of the previously identified Martian pits, which are usually somewhat circular in shape. These features have very complex shapes, as if the pit is conforming itself to the terrain that surrounds it.

The resolution, however, is not good enough to confirm this interpretation. These dark patches could also be exposed volcanic material, darker than the surrounding terrain. The location, as shown in the overview map below, adds weight to this interpretation.
» Read more

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SpaceX delays all launches while it investigates failed booster landing

9:22 am

Capitalism in space: In order to investigate the failure of the first stage to land successfully during the last Starlink satellite launch on February 15th, SpaceX has paused all further launches, with an expected delay overall of one to two weeks before launches resume.

Analysis by Scott Manley suggests during the re-entry burn (as the 1st stage re-entered the atmosphere) one of the engines had issues, causing the booster to break-up shortly before it hit the ocean.

When SpaceX was first attempting to land its first stages, the boosters would routinely crash, and the company would not slow its launch schedule because the boosters had still functioned as expected during launch. Nor was anyone disturbed by those failures nor did anyone expect SpaceX to pause further launches.

Things are different now. We have a high expectation that a Falcon 9 engine will relight and work every time, all the way back to its landing pad. Any failure later in the flight, even if the rocket got the payload into orbit, raises questions that must be answered. Hence the delay in further launches.

Overall, this higher expectation of success is a good thing. It says that we now expect rockets to be able to land successfully. And getting this problem fixed will only increase the chances that they will do so more reliably in the future.

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Firefly gets another launch contract

9:10 am

Capitalism in space: Firefly Aerospace, which hopes to do the first launch of its new Alpha rocket sometime this spring, has won another launch contract, this time with General Atomics to put an Earth science satellite in orbit in ’22.

The other contracts:

In December, the company won a NASA Venture Class Launch Services launch contract valued at $9.8 million to launch two sets of cubesats into polar orbits. It won a $93.3 million contract from NASA’s Commercial Lunar Payload Services program Feb. 4 for the 2023 launch of the company’s Blue Ghost lander carrying NASA payloads. That lander will be launched on another company’s rocket rather than Alpha.

Like all new rockets, the first launch will be highly risky. If successful however it will add one more launch company to the smallsat market, and encourage a further drop in the cost of getting such smallsats into orbit.

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Second passenger chosen for private manned SpaceX mission

11:37 pm

Capitalism in space: Jared Isaacman, who has purchased an entire Dragon/Falcon 9 flight for the first private commercial manned mission scheduled for later this year, has picked the flight’s second passenger.

The second member of a four-person crew for what’s likely to be the first privately funded orbital space tour has been identified: She’s Hayley Arceneaux, a 29-year-old physician assistant who works at St. Jude Children’s Research Hospital in Memphis, Tenn. — and was successfully treated for bone cancer at St. Jude almost two decades ago.

Arceneaux was invited to be part of the Inspiration4 mission weeks ago by its commander and principal funder, Shift4 Payments CEO and founder Jared Isaacman — but her identity was kept secret until today.

This choice fits Isaacman’s main goal, which is to use the publicity of the flight in raise money for St. Jude’s. So far almost $10 million has been raised.

Two more passengers need to be chosen. One will be picked from a lottery of people who donate to St. Jude’s, with the second being an entrepreneur picked by a panel of judges. The deadline to enter both slots closes on February 28th.

As for the flight itself, it will spend two to four days in orbit.

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First panorama from Perseverance

11:02 pm

The Perseverance science team has released the first panorama taken by the Perseverance rover after landing on Mars February 18th.

Below the fold however I have embedded something far better than the science team’s mosaic. Andrew Bodrev has taken these same navigation camera images and created a 360 degree virtual reality panorama, one that you can pan and tilt at your own pleasure. The view also includes the sounds of the Martian winds from the rover’s microphone. If you pause it you won’t hear the sounds, but you can scan and rotate for as long as you want.

» Read more

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NASA postpones second SLS static fire test

10:52 pm

NASA today announced that it was postponing the second SLS static fire test of the rocket’s core stage due to a valve issue in its main engines.

NASA said it was postponing the Green Run static-fire test, which had been scheduled for Feb. 25, after discovering a problem with one of eight valves called “prevalves” associated with the stage’s four RS-25 main engines. The valve, which supplies liquid oxygen, was “not working properly,” NASA said in a statement, but didn’t elaborate on the problem.

Engineers identified the problem during preparations over the weekend for the test. NASA said it will work with Boeing, the prime contractor for the core stage, to “identify a path forward in the days ahead and reschedule the hot fire test” but did not set a new date for the test.

This was not the first time Boeing and NASA has had valve problems with the rocket, though this problem appears unrelated to the previous issue.

Either way, the continuing technical problems — such as the two previous aborts during testing — does not build confidence in the rocket. First, the schedule is very tight, and is getting tighter. Its first unmanned test flight was supposed to happen by the end of this year, and right now that looks very unlikely. Yet, it must happen within the next twelve months because they have begun stacking the strap-on solid rocket boosters, and those have a sell-by date.

More important, these issues raise big red flags as to the overall trustworthiness of the rocket. I certainly would not want to fly on it, at least not until I see it fly at least a half dozen times successfully. The problems however suggest that achieving such a track record is going to be quite difficult.

And if SLS has any major failures during any launch, be prepared for Congress’s support to finally collapse, especially with the on-going spectacular progress being achieved by SpaceX with Starship along with two Falcon Heavy launches planned for this year.

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Movie of Perseverance’s descent and landing

1:07 pm

Cool movie time! The science team for Perseverance today released movie footage obtained by the rover as it descended and landed on Mars in Jezero Crater. That video is embedded below.

If you compare what this movie sees with the orbital images from Mars Reconnaissance Orbiter (MRO) that I posted earlier today, you can recognize the features in the crater and anticipate exactly where the rover is going to land.

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New 3D atlas of all binary stars within 3,000 light years of Sun

9:45 am

Using data from Europe’s Gaia satellite, astronomers have now compiled a 3D map of every binary star within 3,000 light years of the the Sun — 1.3 million — including many widely spaced binaries that were previously not identified.

The one-of-a-kind atlas, created by Kareem El-Badry, an astrophysics Ph.D. student from the University of California, Berkeley, should be a boon for those who study binary stars — which make up at least half of all sunlike stars — and white dwarfs, exoplanets and stellar evolution, in general. Before Gaia, the last compilation of nearby binary stars, assembled using data from the now-defunct Hipparcos satellite, included about 200 likely pairs. “This is just a massive increase in sample size,” said El-Badry. “And it is an increase in what kinds of evolutionary phases we find the binaries in. In our sample, we have 17,000 white dwarfs alone. This is a much bigger census.”

The data has also shown that the bulk of these binaries are made up of twins, stars similar in mass, something that is surprising and as yet unexplained, especially for binaries where the stars are widely separated.

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All systems on Perseverance so far check out good

9:30 am

The Perseverance science team reported this past weekend that all systems on the rover have so far reported back and are operating as expected, including the test helicopter Ingenuity.

Some more images were sent back, all visible at the Perseverance raw image website. The most spectacular new image of Perseverance released however was one taken by the high resolution camera on Mars Reconnaissance Orbiter (MRO) and posted below.
» Read more

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Update on Starship: Flight of prototype #10 possible this week

8:53 am

Link here. Lots of stuff going on, with Starship prototypes 15 through 19 being assembled and waiting n the wings. Crews have also repaved and expanded the landing pad at Boca Chica, and begun assembling the first Super Heavy prototype.

The most significant tidbit to me was this:

One section inside a production tent appears to be undergoing preparations to cover the entire windward side in [thermal patches].

This unnamed section could indicate a vehicle that will be taken to an altitude that would test its heat shield under re-entry conditions. Current [thermal] patches are mostly being tested to see how they perform during the stresses of cryogenic propellant loading and launch and landing vibrations.

It is not known yet to which prototype this section belongs to, but that it is being prepared means that SpaceX is moving relentless towards that first orbital flight.

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Ham picks up signal from China’s Tianwen-1 Mars orbiter

5:58 pm

An amateur ham radio operator announced on February 10th that he has been able to pick up a radio transmission from China’s Tianwen-1 Mars orbiter.

As reported on Spaceweather.com, Canadian radio amateur Scott Tilley, VE7TIL, has snagged another signal from deep space. His latest conquest has been to copy the signal from China’s Tianwen-1 (pronounced “tee-EN-ven”) probe, which went into orbit around Mars on February 10. Tilley told Spaceweather.com that the probe’s X-band signal was “loud and audible.”

“It was a treasure hunt,” Tilley told Spaceweather.com. He explained that while the spacecraft did post its frequency with the International Telecommunication Union (ITU), it was too vague for precise tuning (X band is between 8 GHz and 12 GHz).

What makes this detection especially interesting is that it indicates the possibility that in the somewhat near future some ham might actually be able to win the Elser-Mathes Cup. According to this article [pdf] from the national ham radio magazine QST, by the late 1920s there was a desire to create a new challenge for hams, as by then they had managed to devise methods for communicating across the entire globe.

Amid this disillusionment, [Colonel Fred Johnson Elser] visited ARRL [the national ham radio organization] and had the pleasure of meeting League co-founder and first president Hiram Percy Maxim, whose many interests included Mars. Elser reported that Maxim even owned a globe of the planet, with all of its known features demarcated.

Elser returned to his home in Manila and befriended Stanley Mathes, a Lieutenant Commander in the Navy who had been stationed in the Philippines. Based on their shared belief that Amateur Radio technology would improve at a prodigious rate, Elser and Mathes devised an award for the most ambitious Amateur Radio contact they could imagine. In honor of Hiram Percy Maxim’s love of the Red Planet, Elser and Mathes established the Elser-Mathes Cup, to be awarded for the “First Amateur Radio Two-Way Communication Earth & Mars.”

That cup has remained unclaimed since it was established in 1929, more than ninety years. The detection by Tilley above using ham equipment suggests that a winner might soon be able to lay claim to the cup. However,

Fred Elser and Stanley Mathes stipulated that the contact must be two-way, and that the transmission on the Mars end of the contact cannot be generated by a “robot.” Until we can put a ham on Mars, the Elser-Mathes Cup will go unclaimed.

As almost all astronauts are also hams, all that must happen is for an astronaut to get to Mars, land, and communicate back to Earth using ham equipment. While this will not happen soon, the possibility it will happen in the not-too-distant future is finally becoming a reality. Stay tuned.

Hat tip to ham Don Huddler N4RRT.

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Roscosmos head: Russia to launch 29 rockets in ’21

5:10 pm

Dmitry Rogozin, the head of Russia’s space agency Roscosmos, announced yesterday that they expect to complete 29 launches in 2021.

These numbers include all Russia’s launches, including the ones done for Arianespace in French Guiana. In my regular launch updates I don’t count those as Russian launches, as they are run and controlled by Arianespace, under Arianespace contracts.

Nonetheless, there should be an increase in the number of Russian launches in ’21, as they should resume OneWeb launches that were halted last year due to that company going into bankruptcy and then recovering. That bankruptcy meant that Russia’s total launches last year were less than half what they predicted.

The increase in ’21 does not mean Russia will successfully complete 29 launches. Rogozin and Roscosmos have for years routinely overstated their goals, and I think they are doing so again. I expect Russia to complete around 20-25 launches by the end of the year. If they top 25 it would make ’21 their best year since ’15.

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Partly ice-filled Martian crater?

12:57 pm

Partly ice-filled Martian crater?
Click for full image.

Time for another cool Martian image. The photo to the right, rotated, cropped, and reduced to post here, was taken on January 3, 2021 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The section I have focused on is a single crater about a mile and a half wide.

What makes this crater interesting is the material that appears piled up against the crater’s northern half. Furthermore, both the floor of the crater as well as this piled up material looks like it is eroding away, kind of like a block of ice which is having warm water sprayed on it.

So, is this glacial ice?
» Read more

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Bloomberg editorial: Scrap SLS!

8:38 am

I wonder who has said this before? In a scathing Bloomberg editorial yesterday, the news service called for President Biden to scrap the Space Launch System (SLS) and let private enterprise do the job instead.

The editorial’s opening sentence will sound very familiar to regular readers at this website:

Why is the U.S. government building a space rocket? In particular, why is it building a space rocket that has cost nearly $20 billion and counting, is years behind schedule, relies on outdated technology, suffers by comparison to private-sector alternatives, and has little justification to begin with?

That a major leftwing news source is beginning to endorse private enterprise and lambast SLS is a further sign that the political winds are blowing hard against this giant wasteful boondoggle. Should anything at all go wrong in its upcoming test schedule expect to see more such calls, coming from even more unlikely and unexpected places.

The lumbering thick-headed Washington political community is beginning to finally move towards the right conclusion, only a decade late.

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Perseverance has successfully landed

2:07 pm

Cheers in the control room

First image from Perseverance on the ground

The rover Perseverance has successfully landed in Jezero Crater on Mars.

The picture to the right is a screen capture of everyone cheering in the control room on hearing the good news.

The second image is the first image beamed back, from the rover’s hazard camera used mostly for guiding it in future travels. The haze is from the dust kicked up during landing.

The engineering narrator indicated that they also know exactly where the rover landed, and it is a good location, but NASA’s live stream appears uninterested in telling us this critical information. Right now they are spending time blathering on with more NASA propaganda.

I should get this information during the post-landing press conference, which begins at 5:30 (Eastern).

UPDATE: The press conference started 30 minutes late, and then spent the first 25 minutes letting the top NASA managers claim credit for everything. Then we finally got to hear from actual mission managers to tell us where the rover landed and what should happen next.
» Read more

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Eroded mound in Mars’ glacier country

9:45 am

Eroded mound in Mars' glacier country
Click for full image.

Cool image time! The image to the right, reduced to post here, was a captioned release today by the science team of the high resolution camera on Mars Reconnaissance Orbiter (MRO). It is located in Deuteronilus Mensae, a region of chaos terrain in the transition zone between the northern lowland plains and the southern cratered highlands that is also part of a 2,000 mile-long band that I call Mars’ glacier country. From the caption, written by Dan Berman, senior scientist at the Planetary Science Institute in Arizona:

Lobate debris aprons are commonly found surrounding dissected plateaus in the Deuteronilus Mensae region of Mars. They have been interpreted as debris-covered glaciers and radar data have shown their interiors to be composed of pure ice.

The mound in this image is slightly removed from most of the other plateaus, and the [debris apron] surrounding it is highly degraded. The sharp scarps on the western and eastern sides of the mound indicate that a great deal of the ice once found in these landforms has since sublimated away, leaving behind these collapsed debris cliffs.

I wonder if further research might find an ice layer in those cliff walls, especially because this photo strongly suggests that much of this mound is made of ice that is sublimating away or has flowed downward to form the debris aprons as well as that central gully.

The overview map below shows its location in Deuteronilus Mensae as well as showing almost all of the entire band of Mars’ glacier country.
» Read more

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Perseverance’s possible travel route on Mars

9:06 am

Perseverance's planned driving routes
Click for full image.

In touting the plans of NASA and the European Space Agency (ESA) to someday launch a rover to Jezero Crater designed to pick up the cached samples that Perseverance is going to leave behind, NASA today published the map to the right, showing Perseverance’s planned driving routes in the crater, on the large delta that poured into the crater in the past, and beyond that crater.

The yellow lines indicate Perseverance’s planned route, beginning somewhere in that red landing ellipse. The green lines indicated the many proposed landing sites and pathways the proposed follow-on sample retrieval mission can take to grab Perseverance samples.

The planned route looks like they will spend a lot of time exploring the top of delta, then will move out of the crater and to the southwest towards what had been another candidate landing site for Perseverance, now dubbed the Midway ellipse.

What route the science team will eventually take at the delta depends greatly on exactly where Perseverance lands today. We will know more in only a few hours.

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