Tag: science

The big storms at Jupiter’s poles are coherent and stable

1:46 pm

Storms on Jupiter
Click for full image.

After four years of observations by Juno in orbit around Jupiter, scientists studying the storms at the gas giant’s poles have found that those storms are stable, long-lasting features. From the abstract of their paper:

These data have shown cyclones organized in snowflake-like structures. The Jupiter’s polar cyclones are long-lasting features, which did not disappear or merge during four years of observations.

The image to the right, posted by me earlier this week, shows several of these storms, or vortices, at Jupiter’s north pole. Previous work had documented the overall pattern, as described in the paper:

The observed vortices display geometrical symmetries around both poles: circumpolar cyclones (CPCs), organized in a regular pattern, surround a central one. At the north pole, eight circumpolar vortices form an octagonal structure, while at the south pole, five circumpolar vortices are arranged in a pentagonal pattern; both central polar vortices show some degree of displacements to the geometrical pole, about 0.5° for the Northern Polar Cyclone (NPC) and 1°-2° for the Southern Polar Cyclone (SPC).

While this research has found little change in these storms over four years, it is unknown what their long term evolution will be for an entire Jupiter year, twelve Earth years long.

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New paper: Glaciers on Mars could have been extensive, despite the lack of expected subsequent landforms

12:18 pm

glacial drainage patterns as expected on Mars
Click for full figure.

According to a new paper published this week, scientists now posit that glaciation could have been much more extensive in the geological history of Mars than presently believed, despite the lack of the expected subsequent landforms as seen on Earth.

From the abstract:

The lack of evidence for large-scale glacial landscapes on Mars has led to the belief that ancient glaciations had to be frozen to the ground. Here we propose that the fingerprints of Martian wet-based glaciation should be the remnants of the ice sheet drainage system instead of landforms generally associated with terrestrial ice sheets. We use the terrestrial glacial hydrology framework to interrogate how the Martian surface gravity affects glacial hydrology, ice sliding, and glacial erosion. …[W]e compare the theoretical behavior of identical ice sheets on Mars and Earth and show that, whereas on Earth glacial drainage is predominantly inefficient, enhancing ice sliding and erosion, on Mars the lower gravity favors the formation of efficient subglacial drainage. The apparent lack of large-scale glacial fingerprints on Mars, such as drumlins or lineations, is to be expected. [emphasis mine]

In other words, on Earth the higher gravity causes glaciers and ice sheets to slide, with the liquid water at the base acting as a lubricant. On Mars, the lower gravity slows that slide, so that the water at the glacier’s base drains away instead, causing erosion and the formation of a drainage pattern in the ground beneath the glacier or ice sheet.

The image above, from figure 1 of the paper, shows on the left a graphic of the two types of drainage patterns expected, and on the right two examples found on Earth (D1: Devon Island; D2: Northwest Territories). Orbiter images of Mars have found variations of these types of drainage patterns in numerous places in Mars’ mid-latitude glacial bands, as shown below.
» Read more

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NASA/ESA revise plan to recover Perseverance core samples from Mars

8:52 am

NASA and ESA yesterday announced that the agencies have revised their plan to recover Perseverance core samples from Mars, dropping the launch of a rover to pick up the samples.

Instead, they have decided to use Perseverance to bring the samples to the return vehicle, which will also carry two small helicopters.

In 2030, if all goes as planned, the NASA lander will touch down near where Perseverance is working. The rover will drive over to the lander, and an ESA-built robot arm will extract the tubes one by one and place them inside a spherical container the size of a basketball. In early 2031, a rocket on the lander will loft the container into Mars orbit, where a return craft built by ESA will snare it, enclose it in several layers of shielding for safety, and then head for home. In 2033, a saucer-shaped descent pod will carry the samples down to the Utah desert.

If Perseverance gets into difficulties during its 9-year wait for company, controllers can instruct it to drop its cargo of sample tubes onto the ground, creating a second depot. If that happens, the helicopters come into play: they can fly up to 700 meters, land next to a sample tube—each weighs up to 150 grams—and, with wheels on the bottom their feet, roll over the tube and pick it up with a grabber. On returning to the lander, they will drop the tubes on the ground for the arm to pick up.

The change means that the rover the United Kingdom was planning to build will either be abandoned, or repurposed as a lunar rover.

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A Martian slot canyon!

12:02 pm

A Martian slot canyon
For originals go here, here, and here.

Overview map
Click for interactive map.

Cool image time! The mosaic to the right is made up of three images produced by the high resolution camera on the Mars rover Perseverance (found here, here, and here). All three were taken on July 24, 2022 and look north to the nearest cliff face at the head of the large delta that flowed into Jezero Crater some time in the distant past.

The rover was about 80 feet away from the feature when the photo was snapped. Though scale in the photo is not provided, using the scale in the overview map below I would guess this slot canyon is several feet wide, with some spots narrow enough that your body would touch both walls at spots. Its height is likely nor more than 20 feet high, at the very most.

On the overview map, the blue dots mark Perseverance’s location, in both the main map and the inset. The green dot marks where the helicopter Ingenuity presently sits. The red dotted line is my guess as to the future route of the rover up into the delta. The yellow lines indicate the area viewed in the mosaic.

Though hardly as deep as the many slot canyons found in the American southwest, that this slot exists on Mars is quite intriguing. Did it form like those southwestern slots from water flow? Probably not. More likely we are looking at a fracture produced by shifts in the entire delta itself, and then later widened by wind.

That the cliff shows multiple layers suggests the delta was laid down in multiple events, and that the fracture occurred after the delta was emplaced. That the layers on either side of the fracture appear to match up strengthens this conclusion. These layers also suggest that the layering is not simply in a series of small events. The layers are also grouped into larger aggregates, suggesting those larger groupings mark longer epochs, each with its own unique conditions.

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A crowd of Jupiter hurricanes

11:09 am

Storms on Jupiter
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on July 5, 2022 during Juno’s 43rd close fly-by of Jupiter, and was enhanced by citizen scientist Brian Swift. It shows a group of storms, what planetary scientists have labeled “vortices” near Jupiter’s north pole.

These powerful storms can be over 30 miles (50 kilometers) in height and hundreds of miles across. Figuring out how they form is key to understanding Jupiter’s atmosphere, as well as the fluid dynamics and cloud chemistry that create the planet’s other atmospheric features. Scientists are particularly interested in the vortices’ varying shapes, sizes, and colors. For example, cyclones, which spin counter-clockwise in the northern hemisphere and clockwise in the southern, and anti-cyclones, which rotate clockwise in the northern hemisphere and counter-clockwise in the southern hemisphere, exhibit very different colors and shapes.

The image highlights the type of storm Juno scientists are asking the pubic to category in a new citizen scientist project called Jovian Vortex Hunter. You go to its website and go through Juno images, noting and categorizing them. So far more than 2,400 volunteers have marked up more than 375,000 storms.

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The very end of an 800-mile-long Martian canyon

1:39 pm

The very end of an 800-mile-long Martian canyon
Click for full image.

Cool image time! While most geeks interested in Mars are familiar with Valles Marineris, the largest canyon in the solar system, Mars has other large canyons that while not a big are impressive in their own right. The picture to the right, rotated, cropped, and reduced to post here, shows us the very very end of one such canyon. Taken on April 19, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), it shows the easternmost spot where Cerberus Fossae begins. From here, this narrow fracture-caused canyon extends another 800 miles to the west, sometimes splitting into two or three parallel cracks, but always oriented in the same direction, slightly north of due west.

The overview map below provides the context and wider view.
» Read more

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New boss of Roscosmos confirms decision to leave ISS in 2024.

10:36 am

Yuri Borisov, the new head of Roscosmos, today confirmed that Russia will leave its partnership at ISS in 2024.

The decision to leave the station after 2024 has been made,” Yuri Borisov, appointed this month to lead the Russian space agency, Roscosmos, said during a meeting with President Vladimir Putin. He added: “I think that by that time we will start forming a Russian orbiting station.”

This announcement leaves several questions.

1. What will happen to the Russian modules on ISS? They cannot function on their own, so undocking them means they either must be de-orbited or attached to another station. Since it is more likely a snowman could exist on the Moon than the Russians launching a new station by 2024, the future of those modules must be negotiated.

2. What will the Russians do once out of this partnership? As I said, they will not be able to launch a new station by ’24. In fact, it is more likely they won’t be able to launch one at all, considering the pervasive corruption that permeates all levels of their technological society. It took them almost a quarter century to complete and launch the newest module to ISS, Nauka, with many many technical problems along the way.

3. Will Russia and China forge a closer alliance in space? I expect Russia will try to negotiate a partnership with China on its space station, but I doubt China will agree to any agreement that makes Russia an equal. It isn’t, and China has no interest in making believe Russia is.

4. Will this force an acceleration in the launch of the American private space stations now under construction? Hard to say. If we had a competent executive branch run by a clear-minded president, some action could be taken to help make this happen. The present Biden administration is neither competent nor clear-minded, so I do not expect much from it. Managers at NASA however might be able to push for increased funding to speed development, but even if successful that carries risk. It will make the private stations more beholden to the government, thus lessening their independence.

All in all, a most interesting situation.

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Childhood vaccinations in ’20 and ’21 declined the most in 30 years

9:36 am

Surprise! According to WHO data, the number of children receiving effective vaccines for serious known diseases declined in ’20 and ’21, dropping at a rate larger than seen in 30 years.

Data collected by the World Health Organization (WHO) and the United Nations children’s charity UNICEF show that the percentage of children who received three doses of the vaccine against diphtheria, tetanus and whooping cough (DTP3) decreased by 5 percentage points between 2019 and 2021, to 81% worldwide (see ‘Childhood immunizations decline’). DTP3 is considered to be a marker of vaccine coverage; if children miss these jabs, they’re probably also missing out on crucial vaccinations for many other diseases.

The report found that in 2021, 25 million children missed out on routine immunizations against diseases such as measles — leading to avoidable outbreaks. “If this downward trend continues, we can expect to see more cases, outbreaks and deaths from diseases which are completely preventable,” a WHO spokesperson told Nature.

This article, from the very leftist science journal Nature, notes only that WHO attributes the decline to “supply-chain disruption, diversion of resources and lockdowns.” If fails to mention the loss of faith worldwide in vaccines in general, due to the hard push by WHO and other government health agencies to force the relatively ineffective and possibly harmful COVID shots on everyone.

The vaccines for measles, diphtheria, tetanus and whooping cough do work, but by lying about the effectiveness of the COVID shots, health agencies worldwide have lost their credibility. They have successfully convinced millions of parents to fear getting any vaccines, even those that really work and can prevent their children from dying.

Congratulations to WHO, the CDC, and all government agents worldwide! You have helped bring out the death of millions of children. Great work if you can get it.

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The corruption of medical science is surges on

12:32 pm

The modern basis of medical research in the dark age
The modern basis of medical research in the dark age

Three stories this past week clearly illustrate that the field of medical science — based on the philosophy to always seek the truth no matter where it leads — is now teetering on the edge of death, and might already have died.

First we have the revelation that a major 2006 paper on the roots of Alzheimer’s disease is likely fraudulent, its results fabricated.

The investigation uncovered evidence suggesting several instances of image manipulation in the work of Sylvain Lesné, a researcher working at the University of Minnesota and an author of the 2006 study. The paper, which is cited by more than 2,200 academic papers as a reference, launched interest in a specific protein called Aβ*56 [a beta-amyloid] as a promising target for early intervention in Alzheimer’s disease.

…Whistleblower Matthew Schrag, a neuroscientist at Vanderbilt University, first flagged his concerns about the images to the NIH on January 2022. Science asked two image analysis experts to review Lesné’s published work. They echoed Shrag’s concerns. They identified a total of 20 “suspect papers” authored by Lesné, 10 of which had to do with Aβ*56, per Science.

This discovery might also explain why there has been a 99% failure rate for all Alzheimer drug trials. Most of that work was based on Lesné’s work, specifically on his paper that pointed to amyloids.
» Read more

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Curiosity looks ahead

9:36 am

Curiosity looks ahead
Click for full resolution. For original images go here and here.

Overview map
Click for interactive map.

Cool image time! The panorama above, taken by one of the navigation cameras on the Mars rover Curiosity on July 23, 2022, forms a nice bookend to yesterday’s panorama. Yesterday Curiosity looked back at its past travels. Today it looks forward at where it is almost certainly heading in the days ahead.

On the overview map to the right, the yellow lines indicate the approximate area viewed by the panorama. The large red dotted line marks the rover’s original planned route, abandoned when the science team found the terrain on the Greenheugh Pediment too rough for Curiosity’s wheels. The smaller red dotted line is my present guess as to the rover’s future route to get back on course.

The flat-topped mountain dubbed Kukenán by the science team has probably been one of the prime goals of the entire mission, from the beginning. Its almost vertical face has innumerable layers, all of which record in great detail the geological history of Mars and Gale Crater. As noted by Abigail Fraeman from the Jet Propulsion Laboratory on June 30, 2022:

Kukenán’s Earth namesake is a tepui, or distinctive isolated table-top mountain, found in South America. The Martian Kukenán is also somewhat flat topped and an impressive expression in Mt. Sharp’s topography. While it looks like it’s about the same size as the hills that bound it in the above Navcam image (“Deepdale” on the left and the edge of “Bolivar” on the right), this effect is just due to forced perspective. In reality, Kukenán is nearly five times farther away and over three times as tall as Deepdale! Curiosity’s strategic traverse path takes the rover right past Kukenán in about a kilometer or so, so this feature will become a familiar landmark rising in our windshield for months to come.

The science team will likely park Curiosity in the saddle of the gap ahead for at least a week and spend a lot of time documenting that cliff face with multiple cameras, since at this location the rover will have an excellent view of that entire face. As it gets closer the angle looking up will get steeper, thus making viewing of the upper layers more difficult.

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Curiosity looks back

11:49 am

Curiosity looks back
Click for full image.

Overview
Click for interactive map.

Cool image time! Normally I’d be hiking today, but since it is raining in southern Arizona at every mountain location we might want to go, I am forced to imagine hiking on Mars instead. The photo above, cropped to post here, was part of a mosaic of images taken on July 22, 2022 by the right navigation camera on the rover Curiosity.

Curiosity had just completed several drives that had it skirt around those two boulders visible in the center of the picture, as shown in the inset in the overview map to the right. The yellow lines indicate the approximate area covered by the photo. The blue dot marks Curiosity’s present location. The larger red dotted line the rover’s original planned route, with the smaller dotted line my guess as to the route the science team now plans to take to return to that course.

The rim of Gale Crater can be seen in the far distance, about 20 to 30 miles away and largely obscured by the winter dust that presently fills the atmosphere.

The science team had hoped to get close enough to these two boulders to touch them with the rover’s instruments, but decided to keep away because of both appeared a bit unstable.

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China releases one photo of Phobos taken by its Tianwen-1 Mars orbiter

3:58 pm

Phobos as seen by Tianwen-1
Click to see original photo.

China today released a single photo of the Martian moon Phobos, taken by its Tianwen-1 Mars orbiter, to mark the second anniversary of the orbiter’s launch.

The English press release at the link conveniently did not provide the image to the non=Chinese world, but the Chinese language release did. That picture is to the right, reduced slightly to post here. Considering its disinterest in making it easy to find this photo for English speakers, it is intriguing that China included the English language name Opik for one crater.

Moreover, this single picture release illustrates the paucity of Tianwen-1 photos made available to the public by China. Very few have been released, and though eventually China has been making its raw data available, it has not been doing so in a manner that makes it easy for outsiders to access it.

Nonetheless, this is one of the best pictures of Phobos I have yet seen.

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Collapsed dunes in Jezero Crater

10:31 am

Collapsed dune on Mars
Click for full image.

Cool image time! The photo above, cropped and reduced to post here, was taken on July 20, 2022 by one of high resolution cameras on the rover Perseverance. It shows what appears to be a collapsed dune on the floor of Jezero Crater.

The arrows mark the highest dune ridge line that suddenly ends at a cliff, with the sand that is piled up at its base appearing almost like it flowed like thick mud outward away from that cliff. Apparently, that material broke off in one single event sometime in the past.

Note the many parallel lines pointing outward from the base of the cliff. These lines appear to reflect the internal structure visible in the cliff itself. Somehow, when that sand collapsed, it flowed away while retaining some of that structure.

When this collapse happened is unclear. I don’t think it has happened recently, since Perseverance’s arrival, but I could be wrong.

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Draper wins NASA contract to put a lander on the Moon’s far side

9:28 am

Capitalism in space: NASA yesterday awarded a $73 million contract to the space company Draper to place a lander on the Moon’s far side by 2025.

The lander, called SERIES-2 by Draper, will deliver to Schrödinger Basin three experiments to collect seismic data, measure the heat flow and electrical conductivity of the lunar subsurface and measure electromagnetic phenomena created by the interaction of the solar wind and plasma with the lunar surface.

The mission is the eighth NASA has awarded to date as part of CLPS, but the first to go to the lunar farside. The only mission by any country to land on the far side of the moon is China’s Chang’e-4 mission, which successfully landed in Von Kármán Crater in January 2019 and deployed the Yutu 2 rover that remains operational today.

With this award, there are presently five American companies with contracts to put landers on the Moon, Intuitive Machines, Astrobotic, Firefly, and Masten. Masten however shut down operations recently. This new contract to Draper for almost the exact same amount that had been awarded to Masten appears to replace Masten in the program.

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Using the Wuhan panic to kill children

3:17 pm

Excess mortality by age
The shocking rise of excess mortality since young people
began getting the jab

The evidence continues to pour in: Not only were the authoritarian polices imposed by governments worldwide following the arrival of COVID in 2020 a total failure — doing nothing to prevent the spread of the virus — it now appears the edicts forcing millions to get the COVID jab and wear masks might very well have caused serious harm, even death, to many individuals for whom the virus posed no threat at all.

And it more and more appears that the worst victims of these failed policies were children.

The following stories, all published since my last Wuhan panic update on June 30th, point specifically to the failure of the jab:

These new research confirms many previous studies. For example, in 2021 the American Heart Association issued its own warning about mRNA vaccines, stating that this drug could “dramatically increase risk of developing heart disease.” Other earlier research can be found at my own reports on February 14th, March 23rd, March 30th, May 11th, May 13th, and June 30th. The data increasingly demonstrates that the COVID shots not only accomplished practically nothing in stopping the virus, those shots had side effects that have unnecessarily harmed possibly millions.

Similarly, studies continue to confirm what a hundred years of past research had found, that masks are essentially useless in stopping the spread of a virus such as COVID, and can actually increase your chances of getting this or other diseases.
» Read more

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Perseverance spots a string on Mars!

10:54 am

A piece of string on Mars
Click for full image.

According to the Perseverance science team, they believe the strange spaghetti-like object to the right, taken by one of the rover’s hazard avoidance camera’s on July 12, 2022, is actually a piece of string that fell here during the rover’s landing in February 2021.

The string could be from the rover or its descent stage, a component similar to a rocket-powered jet pack used to safely lower the rover to the planet’s surface, according to a spokesperson for the Perseverance mission at NASA’s Jet Propulsion Laboratory in Pasadena, California. Perseverance had not previously been in the area where the string was found, so it’s likely the wind blew it there, the spokesperson said.

The string, which appears to be a few inches across, was apparently gone four days later, when another hazard avoidance picture was taken of the same spot

An official description from the scientists is expected in a week or so.

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The earliest galaxy so far seen?

10:37 am

Earliest galaxy?

Scientists using the James Webb Space Telescope now think they have identified a galaxy formed only 330 million years after the Big Bang.

The red smudge in the centre of this image [to the right] is thought to be a galaxy with a redshift of around z=13, as seen by the NIRCam instrument on the James Webb Space Telescope. This redshift estimate is based on photometry so the object remains a candidate rather than a confirmed high-redshift galaxy, but if confirmed spectroscopically this would be the highest-redshift galaxy yet observed.

You can read the research paper itself here [pdf]. The galaxy is actually very young, and its nature, along with a second also described by the research, appears to contradict expectations. From the paper’s abstract:

These sources, if confirmed, join GNz11 in defying number density forecasts for luminous galaxies based on Schechter UV luminosity functions, which require a survey area > 10× larger than we have
studied here to find such luminous sources at such high redshifts. They extend evidence from lower redshifts for little or no evolution in the bright end of the UV luminosity function into the cosmic dawn epoch, with implications for just how early these galaxies began forming. This, in turn, suggests that future deep JWST observations may identify relatively bright galaxies to much earlier epochs than might have been anticipated. [emphasis mine]

In other words, this early data from Webb suggests that galaxies formed much faster than expected after the Big Bang. This either means all the theories describing the Bang are wrong, or that it might not have even happened.

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Martian terraces

12:51 pm

Overview map
Glacier country on Mars

Martian terraces
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on May 17, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists have labeled “Dipping layers against mound in Deuteronilus Mensae.”

Deuteronilus is the westernmost mensae region in the 2,000-mile-long strip of heavy glaciers found in the northern mid-latitudes that I dub glacier country. This photo, the location of which is marked by the white cross on the overview map above, is another example, though somewhat strange and puzzling. Normally the layers will dip away from the high point. Here, the layers dip towards the mound. I can think of only one explanation, that of prevailing winds causing the erosion in this unusual manner, but I also find that explanation very unsatisfactory.

The layers themselves illustrate the cycles that have shaped Martian geology, caused by the wide swings in the planet’s rotational tilt, from 11 to 60 degrees. When that tilt is high, the poles are warmer than the mid-latitudes, and water ice migrates from the poles towards the equator. When the tilt is low, the mid-latitudes are warmer, and the water ice heads back towards the poles. Thus, the many many layers the orbiters and rovers are now finding everywhere on Mars.

Right now scientists think, because Mars’ tilt is in the middle of these swings at 25 degrees, the planet is in equilibrium, with the water at the poles and mid-latitudes essentially going no where. This conclusion however is not yet confirmed.

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Ispace now aiming for a November ’22 launch of its lunar lander

9:14 am

Capitalism in space: The private Japanese company Ispace today announced that it is targeting November 2022 for the launch of its Hakuto-R lunar lander, carrying commercial as well as governmental payloads.

The launch will be on a Falcon 9 rocket. The payload includes two small rovers, one built by Ispace and a second, Rashid, built by the United Arab Emirates (UAE).

Rashid has already been delivered to SpaceX. This announcement indicates that Hakuto-R is on schedule for delivery in time for that November launch.

Both rovers are engineering tests, and will are expected to only function on the Moon for one lunar day.

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NASA awards SpaceX’s Falcon Heavy launch contract for Roman Space Telescope

8:57 am

Capitalism in space: NASA yesterday awarded a contract to SpaceX to use its Falcon Heavy rocket to launch the Roman Space Telescope in October 2026.

. The total cost for NASA to launch the Roman telescope is approximately $255 million, which includes the launch service and other mission related costs. The telescope’s mission currently is targeted to launch in October 2026, as specified in the contract, on a Falcon Heavy rocket from Launch Complex 39A at NASA’s Kennedy Space Center in Florida.

SpaceX’s normal launch price for the Falcon Heavy is $100 million. This higher price in probably because NASA has imposed additional requirements. It is also likely because SpaceX has no comparable competitor, and can raise its price in certain situations — such as when the government is buying — because no one can undercut it.

That launch by the way will not happen in ’26. Roman is certain to be delayed further. It was proposed in 2011 as a major astronomy project for that decade. Instead, as expected it has become a two-decade long jobs program like Webb.

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NSF to do environmental impact statement on TMT

8:48 am

The National Science Foundation (NSF) has suddenly announced that it plans to complete a full environmental impact statement on the construction of the Thirty Meter Telescope (TMT) on Mauna Kea in Hawaii.

The National Science Foundation plans to host four meetings on the Big Island of Hawaii in August. It said it won’t decide on whether to fund the telescope until after it considers public input, the environmental review, the project’s technical readiness and other factors.

…The National Science Foundation must conduct a new study under U.S. law to invest in the project because it is part of the federal government. A report from the U.S. astronomy community last year said TMT planned to obtain 30% of the project’s estimated construction costs, or $800 million, from the U.S. government.

The timing of this announcement is most interesting, coming more than a year after NSF had decided to partly fund TMT and just shortly after the passage of a new law in Hawaii taking control of telescopes on Mauna Kea away from the University of Hawaii and giving that control to some of the activists protesting TMT. Why is this study suddenly necessary when it hadn’t seem necessary before?

I think this decision is another example of the Biden administration allowing the bureaucrats in the federal government to exercise their power. I also think it is linked with the new bigoted effort in government to always put racial concerns first — in this case tribal Hawaiians. It signals a decision by these federal bureaucrats to team up with those tribal Hawaiians that oppose TMT because it is “white” and “a symbol of colonialism” to kill it.

As I have been predicting for years, TMT will never be built.

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Perseverance gains a little height

11:47 am

View of Jezero Crater from Perseverance
Click for full image.

Overview map
Click for interactive map.

Cool image time! The photo above, rotated and cropped to post here, was taken on July 18, 2022 by the right navigation camera on the Mars rover Perseverance.

The view isn’t that remarkable, when compared to many other pictures from Mars. What makes it newly interesting is that it shows that Perseverance has gained a little elevation as it explores the base of the delta that flowed into Jezero Crater. It is no longer on the crater floor, but above it, though not by much.

You can see the far rim of Jezero Crater in the distance, obscured somewhat by the dust that builds up in the Martian atmosphere during the winter. You can also see the gentle left-to-right downward slope of material that flowed down from that delta some time in the past. Also, though the resolution isn’t good enough to show it, the helicopter Ingenuity probably sits somewhere near the center of this picture, just to the right of the nose of the biggest ridgeline.

The overview map on the right gives the context, with the yellow lines showing my estimate of the area viewed by the picture above. The blue dot is Perseverance, the green dot is Ingenuity. The red dotted line is my present guess as to the planned route of Perservance up onto the delta.

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Relativity signs deal to launch Impulse Space’s missions to Mars

10:20 am

Capitalism in space: The commercial rocket startup Relativity has now signed a deal with the orbital tug startup Impulse Space to launch at least one mission to Mars, possibly as early as 2024.

Impulse Space has announced that the company will launch the first commercial payload to Mars on board Relativity Space’s Terran R rocket. Under the new partnership, Relativity will launch Impulse’s Mars Cruise Vehicle and Mars Lander from Cape Canaveral, Florida, as part of an exclusive agreement until 2029.

The earliest anticipated launch window occurs between 2024 and 2025 and would make use of Relativity’s fully reusable Terran R rocket launching from Space Launch Complex 16 (SLC-16) at the Cape Canaveral Space Force Station.

Terran R is planned to complete the trans-Mars injection burn to place the cruise vehicle, carrying the lander, on a trajectory toward Mars. The cruise vehicle will then separate from the lander that, protected by an aeroshell, will enter the Martian atmosphere and attempt to propulsively land on the surface of the red planet.

To say that this plan is tentative is to state the obvious. First, Relativity has not yet launched its first rocket. It hopes to do so before the end of this year, but that rocket is the Terran-1, much smaller than the proposed Terran-R. Second, Impulse itself has not yet launched any tugs, though its founder, Tom Mueller, was the head engine development at SpaceX when it developed the Merlin, Draco, Super Draco, and Raptor engines. After leaving SpaceX he created Impulse Space to provide orbital and interplanetary transportation for others. It appears he has decided that an early Mars mission will be the best way to put his company on the map.

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The May micrometeoroid impact on Webb’s mirror

9:37 am

Figure 3 from report

In a detailed report [pdf] of Webb’s overall excellent operational status following its in-space commissioning, the science team also included an analysis of the May 2022 micrometeoriod impact on one segment of Webb’s mirror.

The image to the right, taken from figure 3 of the report, shows the remaining alignment error of Webb’s entire mirror, after alignment. Except for that one bright spot in the segment to the lower right, all of the segments show excellent alignment, well within the range predicted before launch. The bright spot however is from the impact, and suggests that one mirror segment is significantly damaged. From the report:

The micrometeoroid which hit segment C3 in the period 22—24 May 2022 UT caused significant uncorrectable change in the overall figure of that segment. However, the effect was small at the full telescope level because only a small portion of the telescope area was affected. After two subsequent realignment steps, the telescope was aligned to a minimum of 59 nm rms, which is about 5-10 nm rms above the previous best wavefront error rms values 7 . It should be noted that the drifts and stability levels of the telescope mean that science observations will typically see telescope contribution between 60 nm rms (minimum) and 80 nm rms (where WF control will typically be performed). Further, the telescope WFE combines with the science instrument WFE to yield total observatory levels in the range 70-130 nm (see Table 2), so the slight increase to telescope WFE from this strike has a relatively smaller effect on total observatory WFE.

In plain English, the impact while damaging has not seriously reduced the telescope’s predicted capabilities.

However, to be hit with this size impact so soon after launch is very worrisome, especially because Webb’s mirror is not housed in any protective tube like Hubble or most telescopes. From the report:

It is not yet clear whether the May 2022 hit to segment C3 was a rare event (i.e. an unlucky early strike by a high kinetic energy micrometeoroid that statistically might occur only once in several years), or whether the telescope may be more susceptible to damage by micrometeoroids than pre-launch modeling predicted.

The science team is presently trying to anticipate what might happen if the impact rate turns out to be much higher than expected, and what can be done to mitigate the degradation of the mirror should more impacts occur.

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Russia may delay its Luna-25 lander again

9:10 am

The landing area for Luna-25
The landing zone for Luna-25 at Boguslawsky Crater

According to Russia’s state run media, Roscosmos is considering delaying its Luna-25 lander again from September ’22 to sometime next year because of recently discovered issues with its landing system.

The launch of Russia’s lunar mission Luna 25 will most likely be pushed back to 2023 at the earliest because recent tests of its soft-landing device showed it failed to meet requirements, two sources in the space industry told TASS.

The Doppler speed and distance sensor made by the Vega Concern, part of the Rostech State Corporation, was tested in May and June and underperformed in terms of measurement precision, the sources said. The current precision would give 80% probability of a successful landing while the desired specifications call for a higher probability, which means either the device or the landing plan will have to be reworked.

The launch of this lunar lander has been delayed repeatedly, though the recently deposed head of Roscosmos, Dmitry Rogozin, had said as recently as late May that the September launch date was firm. It could very well be that with his removal the new head, Yuri Borisov, took another look and decided this new delay was necessary.

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NASA delays launch of its VIPER lunar rover to over concerns about commercial lander

8:58 am

VIPER's planned route on the Moon
VIPER’s planned route at the Moon’s south pole

In order to do more engineering tests of Astrobotic’s Griffin lunar lander, NASA has now delayed the launch of its VIPER lunar rover from November 2023 to November 2024.

NASA’s decision to pursue a 2024 delivery date results from the agency’s request to Astrobotic for additional ground testing of the company’s Griffin lunar lander, which will deliver VIPER to the lunar surface through CLPS. The additional tests aim to reduce the overall risk to VIPER’s delivery to the Moon. To complete the additional NASA-mandated tests of the Griffin lunar lander, an additional $67.8 million has been added to Astrobotic’s CLPS contract, which now totals $320.4 million.

Though the press release makes no mention of it, the launch of Astrobotic’s Griffin lander is partly dependent on the launch of Astrobotic’s first and smaller lunar lander, Peregrine, which was originally supposed to fly on the inaugural flight of ULA’s new Vulcan rocket, in 2021. That rocket’s first flight however has been delayed repeatedly because of delays by Blue Origin in completing development of the BE-4 rocket engine, to be used in Vulcan’s first stage. It is presently scheduled for early 2023, but that date remains tentative. This new delay of Griffin could be to make sure Peregrine flies first.

Regardless, this new budget increase means that the budget for Griffin has experienced a 62% cost overrun from its original $199 million number. This large increase in what is supposed to be a fixed price contract suggests that Astrobotic has been having some problems unstated by NASA, despite an inspector general report [pdf] that said all was going reasonably well.

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Layered mesa on Mars

12:57 pm

Layered mesa on Mars
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on May 26, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a mesa about three quarters of a mile in length that appears to be many-layered, from top to bottom.

The brightness of the mesa, compared to the surrounding plains, also emphasizes the different layers, though in this case it suggests two major epochs where the material being laid down in each was fundamentally different.

Or the difference could simply mean that the surrounding terrain is covered with dust, hiding its true color.

There is no question that winds in the thin Martian atmosphere have contributed to the erosion that formed this mesa, much like the buttes in the American southwest are shaped by winds. Whether water was a factor for this Martian butte is far less certain.

The overview map below provides context.
» Read more

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Masten lays off staff, apparently shuts down

9:02 am

Capitalism in space: The small lunar lander company Masten Space Systems, which for years has worked to develop vertical rocket landing technology and has a $75.9 million contract with NASA to put a rover on the Moon, has apparently furloughed its staff and shut down operations.

The XL-1 lander was originally scheduled to launch in December 2022 bound for a landing at the moon’s south pole. In June 2021, Masten announced an 11-month launch delay to November 2023. The company said the delay was caused by industry-wide supply chain disruptions and the effects of the ongoing COVID-19 pandemic.

CLPS partners are expected to supplement NASA mission funding by carrying payloads for other parties. The source who requested anonymity said that is where Masten’s mission ran into problems. “We ran out of money after grossly underbidding. The estimate was $105 million but I was told that we had found a 30 million dollar private customer who wanted to fly with us,” the source said.

However, that customer later pulled out the venture. Subsequent attempts to fill the gap failed, the source added.

Masten is one of four companies with similar NASA lunar lander contracts. The others, Astrobotic, Firefly, and Intuitive Machines, all have scheduled missions planned, all of which however have been delayed for a variety of reasons.

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Webb infrared image of Jupiter & Europa

3:36 pm

Jupiter and Europa as seen by Webb
Click for full image.

During the commissioning phase after deployment, the James Webb Space Telescope took images of Jupiter and several asteroids in order test the telescope’s instruments. The photo to the right, cropped and reduced to post here, shows both Jupiter and its moon Europa to the left.

Fans of Jupiter will recognize some familiar features of our solar system’s enormous planet in these images seen through Webb’s infrared gaze. A view from the NIRCam instrument’s short-wavelength filter shows distinct bands that encircle the planet as well as the Great Red Spot, a storm big enough to swallow the Earth. The iconic spot appears white in this image because of the way Webb’s infrared image was processed.

…Clearly visible at left is Europa, a moon with a probable ocean below its thick icy crust, and the target of NASA’s forthcoming Europa Clipper mission. What’s more, Europa’s shadow can be seen to the left of the Great Red Spot. Other visible moons in these images include Thebe and Metis.

The false color differences indicated differences in heat but it is not explained whether brighter is colder or warmer in this photo.. As one of my readers below correctly notes, Europa’s shadow tells us that darker is cooler. This one image shows that the Red Spot and Jupiter’s equatorial regions and poles are generally warm.

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Comet K2: big and doing unexpected things

9:19 am

Link here. The article provides a nice overview of the observations so far of this very distant but very large comet making its suspected first close approach to the Sun this week, though still beyond the orbit of Mars and barely visible to amateurs.

K2 was first sighted in May 2017 at a much farther distance from the Sun than most comet discoveries. It had developed a coma much earlier than expected, which scientists now think came from from carbon monoxide.

“Carbon monoxide has been detected in other comets closer to the sun, although in much lower quantities than water. Carbon monoxide is very volatile and hard to freeze into a solid.” Jewitt and his colleagues theorized that as the comet slightly warmed while moving toward the planetary region of the solar system, the carbon monoxide ice near its surface turned into a gas that streamed into the vacuum of interplanetary space like constant wind. This wind stirred up dust particles from the comet’s surface, creating the round puffball-like coma.

But it took several failed attempts to measure the chemical composition of the comet to confirm the theory, Jewitt said. The team finally succeeded last year when the comet reached the orbit of Jupiter, and the scientists finally spotted carbon monoxide in the heart of the comet.

Comet K2 also did not develop a comet tail as expected. This appears to be because the particles in its coma are much larger than expected, something that at present is a complete puzzle.

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