Behind The Black – Robert Zimmerman

October 24, 2023 Quick space links

October 24, 2023 3:18 pm Robert Zimmerman

Courtesy of BtB’s stringer Jay.

Chinese video fantasizing about building an underground lunar base

Pure powerpoint engineering. The concepts are fun, but this is very removed from reality.

Indian rocket startup Skyroot releases animation of launch of its proposed Vikram-1 rocket

The music track actually detracts from this, as it makes it look like all sizzle and no steak.

International Telecommunications Union (ITU) is considering regulating communications on the Moon

Hey, what could possibly go wrong, especially as the FCC is also getting involved? They are representatives of the government, here to help!

Russia is considering using a Soyuz rocket as a missile to attack the Ukraine

This is junk news that makes little sense. It is unconfirmed, could be disinformation, and besides, it makes no technical sense to use an orbital rocket in this manner.

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More Io images by Juno, enhanced by citizen scientists

October 24, 2023 1:27 pm Robert Zimmerman

Io in natural and enhance colors
Click here for original of top image,
here for bottom.

Since Juno completed its 55th close swing past Jupiter on October 15, 2023, including the closest fly by of its volcano-covered moon Io since the 1990s, citizen scientists have been grabbing the spacecraft’s raw images of the moon and enhancing them to bring out the details.

Immediately after the fly-by I posted on October 17, 2023 the top image to the right, processed by Ted Stryk. This version attempted to capture the view of Juno is natural color. As I noted then, “The dark patches are lava flows, with the dimensions of mountains along the terminator line between night and day clearly distinguishable.”

The bottom picture to the right was first processed by citizen scientist Gerald Eichstädt, who like Stryk attempted to capture Io’s natural colors. Thomas Thomopoulos then took Eichstädt’s image and enhanced the colors as well as reduced the brightness, in order to bring out the details as much as possible.

I have rotated, cropped, and reduced this bottom image further to post it here.

In comparing this image with earlier pictures of Io, taken by both Juno and Galileo in the 1990s, there is evidence that some of the lava flows visible now have changed significantly in the intevening time. This is not a surprise, as volcanic eruptions take place on Io so frequently that it has not unusual to capture one in the rare times close up images are possible, going back to the discovery of volcanic activity by Voyager-1 in 1979.

It will take a bit of time for scientists, both professional and amateur, to pick out the specific changes. That work will be further aided by Juno’s next fly-by on December 30, 2023, where it will dip to less than 1,000 miles of the surface.

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At the moment our modern Nazi movement appears to be winning

October 24, 2023 12:25 pm Robert Zimmerman

Chamberlain in 1938
In 1938 Chamberlain thought he could negotiate
with Hitler. Today American politicians think
they can negotiate with Hamas.

Now that we have clear evidence that the left is nothing more than a revised but reborn Nazi movement — allied with murderous Islamic groups like Hamas, it is imperative we track whether the good people in the world are willing to fight it, or appease it as was done so stupidly in the 1930s when Hitler first began his march for world domination and the extermination of the Jews.

In the past week, it seems more and more that appeasement is the watchword of the day.

First, Israel has repeatedly delayed its invasion into Gaza, mostly because of demands from western leaders, led by Democrat Joe Biden, to hold off so that negotiations can continue to get the hostages released. A news report today further reiterated that Israel has agreed to hold off, pending these negotiations.

The reasoning from Israel is the hope that Hamas will release a “big number” of hostages quickly, such as all women and children. Getting one or two hostages released on a weekly basis — which is what Hamas is presently doing — is not considered acceptable to Israel. At that pace it will take more than two years to get all released, and based on how the news cycle goes, after a few more months Israel will have lost its military initiative and Hamas will likely stop releasing any hostages.
» Read more

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Scientists: The solar cycle was only 8 years long during the Maunder Minimum in the 1600s

October 24, 2023 9:58 am Robert Zimmerman

Using archival records gathered in Korea during the 1600s when the Sun was undergoing a long period of almost no sunspots — called the Maunder Minimum — scientists have discovered evidence that the solar cycle during that time was only 8 years long.

You can read their paper here. Since almost no sunspots were visible at that time, the scientists used reports of aurora in Korea to determine periods when the Sun was more active. From their abstract:

By analyzing the variations in solar activity-related equatorial auroras recorded in Korean historical books in the vicinity of a low-intensity paleo-West Pacific geomagnetic anomaly, we find clear evidence of an 8-year solar cycle rather than the normal 11-year cycle during the Maunder Minimum.

This 8-year cycle is shorter than the 9-year cycle that other researchers had estimated based on the few sunspots that did appear during this grand minimum. Both conclusions however challenge what is known of the Sun. Since the 11-year cycle resumed in the 1700s, short cycles have generally been associated with very active periods, the opposite of what has been found during Maunder.

In other words, we know better what happened, but have no understanding of why. Since the Maunder Minimum appears associated with the Little Ice Age of the 1600s, and fits other data that says the climate cools when the Sun produces few sunspots, gaining some understanding of this process is important for understanding past and future changes to the global climate.

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India releases on-board camera views during its Gaganyaan launch abort test

October 24, 2023 9:46 am Robert Zimmerman

India’s space agency ISRO today released the on-board camera views taken during its Gaganyaan launch abort test on October 21, 2023.

The test was a complete success, and the footage shows each step clearly, from launch to stage separation to deployment of parachutes.

ISRO is still targeting 2024 for the first manned Gaganyaan mission, which will carry two to three astronauts into orbit for three to seven days. To meet that target however will require a lot of fast work, as the agency intends to fly three separate unmanned orbital missions of the Gaganyaan capsule prior to putting humans in it. More likely the manned mission will happen in 2025.

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Belarus joins China’s lunar base project

October 24, 2023 9:33 am Robert Zimmerman

The former province of the Soviet Union Belarus has now signed an agreement to partner in China’s lunar base project, joining another former part of the U.S.S.R., Azerbaijan, as well as Russia, Pakistan, Venezuela, and South Africa.

Except for Russia, all the other partners in this project have little space capabilities, so don’t expect Belarus to contribute much. This deal is mainly for public relations purposes, to show that China has obtained some international partners.

In truth, the partnership more resembles the communist block run by the former Soviet Union — made up of failing communist states — except that communist China is now leads it.

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Lucy’s first asteroid fly-by coming on November 1st

October 24, 2023 9:25 am Robert Zimmerman

Lucy's route through the solar system
Lucy’s route through the solar system

The asteroid probe Lucy is about to do its first asteroid fly-by on November 1, 2023, the first of a planned ten asteroids it will see close-up during its twelve year mission.

The half-mile-wide asteroid, Dinkinesh, is indicated on the graphic to the right by the white dot in the lower left of the main asteroid belt. It was a late addition to the spacecraft’s plan in order to provide a perfect testbed for doing a dress rehearsal of the many later fly-bys.

As this encounter is intended as a test of Lucy’s systems, scientific observations will be simpler than for the mission’s main targets. The spacecraft and the platform that holds the instruments will move into position two hours before the closest approach to Dinkinesh. Once in place, the spacecraft will begin collecting data with its high-resolution camera (L’LORRI) and its thermal-infrared camera (L’TES). One hour before closest approach, the spacecraft will begin tracking the asteroid with the terminal-tracking system. Only in the last eight minutes will Lucy be able to collect data with MVIC and LEISA, the color imager and infrared spectrometer that comprise the L’Ralph instrument. Lucy’s closest approach is expected to occur at 12:54 p.m. EDT, when the spacecraft will be within 270 miles (430 kilometers) of the asteroid. Lucy will perform continuous imaging and tracking of Dinkinesh for almost another hour. After that time, the spacecraft will reorient itself to resume communications with Earth but will continue to periodically image Dinkinesh with L’LORRI for the next four days.

After this close encounter the spacecraft will return to do a flyby of Earth in 2025 to slingshot it to the orbit of Jupiter, where it will do its main work exploring the Trojan asteroids there. On the way it will fly past a second main belt asteroid, dubbed Donaldjohanson.

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Varda signs deal with Australian private spaceport operator to land its capsules

October 24, 2023 9:13 am Robert Zimmerman

Blocked from landing its American-built space capsules by the American government, the startup Varda has now completed negotiations and signed an agreement with Southern Launch, an Australian private spaceport operator, to land its capsules at the Koonibba Test Range northwest of Adelaide.

Varda’s business plan is to launch unmanned capsules in which pharmeceuticals and other products that can’t be made on Earth are manufactured, then return the capsule to earth where they are sold for a profit. This deal will allow Varda to land its next capsule there in 2024.

Meanwhile, Varda first capsule, presently in orbit after manufacturing pharmeceuticals for HIV, appears to be a total loss because the FAA and the Pentagon refused it permission to land in the U.S., for what appear to be purely bureaucratic reasons.

There was no single specific issue that held up the reentry, he said. “It was ultimately a coordination problem amongst three different groups that had not worked through this operation before.” He added that there were no safety concerns with Varda’s spacecraft or its ability to meet requirements for an FAA license. An additional challenge is that Varda is the first company to seek an FAA reentry license through a new set of regulations called Part 450. Those regulations are intended to streamline the process but, on the launch side, have been criticized by companies for being difficult.

The U.S. government is now the enemy of its citizens, so incompetent that it actually works to block them from achieving their goals.

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NASA issues update on repairs/fixes to Starliner

October 24, 2023 9:05 am Robert Zimmerman

According to an update posted today by NASA, Boeing is moving forward on the repairs and fixes necessary to finally fly a manned mission with its capsule Starliner, now delayed several years and costing the company an additional $1.5 billion due to those repairs.

Boeing has completed P213 tape removal in the upper dome of the Starliner crew compartment and work is underway to remove or remediate the tape in the lower dome of the spacecraft. These hardware remediation efforts inside the Starliner production facility at NASA Kennedy are expected to be completed during the next several weeks. After the P213 tape remediation efforts conclude, engineers will conduct final assessments to ensure acceptable risk of any remaining tape.

A set of parachutes is on track to be delivered and installed on the CFT spacecraft by the end of this year to support the current target launch date. Separately, the team also is planning a drop test of Starliner’s updated drogue and main parachutes. The parachutes will incorporate a planned strengthening of main canopy suspension lines and the recent design of the drogue and main parachute soft-link joints, which will increase the safety factor for the system. The drop test is planned for early 2024 based on the current parachute delivery schedule.

The company is targeting having Starliner ready for launch in March ahead of its scheduled April 2024 launch.

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China launches classified satellite

October 24, 2023 8:59 am Robert Zimmerman

China today successfully launched a classified reconnaissance satellite, its Long March 2D rocket lifting off from its Xichang spaceport in the south of China.

No word on where the first stage, which uses toxic hypogolic fuel, crashed in the interior of China.

The leaders in 2023 launch race:

76 SpaceX
47 China
13 Russia
7 Rocket Lab
7 India

American private enterprise still leads China in successful launches 88 to 47, and the entire world combined 88 to 75. SpaceX by itself still leads the entire world combined (excluding American companies) 76 to 75.

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Cab Calloway – Minnie the Moocher

October 23, 2023 6:01 pm Robert Zimmerman

An evening pause: Performed live 1958.

Hat tip sippin_bourbon.

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October 23, 2023 Quick space links

October 23, 2023 5:47 pm Robert Zimmerman

Courtesy of BtB’s stringer Jay.

China touts proposed in-orbiting manufacturing technology, including 3D printing

This is merely engineering by powerpoint. No actual prototypes appear to yet exist.

Heavy rains cause flooding at construction site of commercial launchpad at China’s Wenchang coastal spaceport

No other details provided, such as the impact this might have on the first launch

NASA convenes team to reassess design of Mars sample return mission

Common sense would cause them to consider a major restructuring that even might include Starship. The track record of Washington suggests instead they will only make some superficial changes, claiming it saves money and addresses the problems outlined by the recent very critical independent review. And most important, they will ask for more money!

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“Formerly clandestine Nazis will continue protesting, sometimes violently”

October 23, 2023 1:37 pm Robert Zimmerman

Enthusiatically and publicly cheering for another genocide
The left is now enthusiastically cheering for another
Jewish genocide in Israel

The headline sums up the situation. It is a quote from an article about the Israeli army’s green light to invade Gaza and take as long as necessary in order to utterly destroy Hamas. In its conclusion that article couldn’t help noting the expected and guaranteed enraged protests from all the usual suspects when that invasion begins.

The attempt by Israel to defend itself after a brutal terrorist attack by Hamas, torturing and killing what appears to be more than a thousand people, including many women, children, and babies, has accomplished one and only one good thing: It has caused the Nazis among us — almost all of which are on the left — to finally make clear their true feelings and goals: It’s all right to kill Israelis, especially if they are Jews. And it’s also all right to torture little children before you do it.

The examples of this are so many it is difficult to document them all. Over and over people from all walks of life but especially our elitist intellectual class enthusiatically called for the massacre of Jews while demanding Israel stand down and let Hamas do it. Here are only a few examples:
» Read more

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A low mid-latitude crater on Mars apparently filled to overflowing with ice

October 23, 2023 12:04 pm Robert Zimmerman

Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on June 18, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a steep 1,000-foot-high cliff with what appears to be extensive glacial material at its base.

The many layers all suggest past climate cycles, where snow was deposited and the glacier grew, followed by a period when no snow fell and the glacier either shrank or remained unchanged. The terraced nature of the layers near the base of the cliff suggest that with each active cycle less snow was deposited and the glacier grew less.

The latitude is 33 degrees south, which puts it just outside the dry equatorial regions of Mars and inside the mid-latitude region where many such glacial features are found. Its closeness to the tropics however is significant, because by this point we should be seeing a diminishment of such features. Instead, the wider view shows us that the near surface ice in this region is extensive and in fact appears to cover everything.
» Read more

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Ingenuity completes 63rd flight on Mars

October 23, 2023 10:07 am Robert Zimmerman

Click for interactive map.

On October 19, 2023 the Mars helicopter Ingenuity successfully completed its 63rd flight on Mars, traveling 1,901 feet (its third longest flight) for 142.6 seconds.

On the overview map above the two dots and the green line mark the flight path, to the southwest and landing about 2,000 feet to the west of where the rover Perseverance presently sits (indicated by the blue dot).

Both the flight time and distance were slightly longer than the flight plan, likely caused by the helicopter making sure it had a safe landing spot before lowering itself to the ground.

Ingenuity is no longer simply an engineering test of whether flight is possible on Mars. It is now serving wholly as a scout for Perseverance, either moving ahead of its planned route (the red dotted line) in order to provide pictures of the ground so that the rover’s science team can better plan their future travels, or going into territory that the rover is not intended to travel in order to gather data that would previously been unavailable.

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Near collision of Australian satellite with Chinese military satellite

October 23, 2023 9:31 am Robert Zimmerman

According to one Australian military official, a Chinese military satellite earlier this month came within a kilometer of a Australian satellite.

Analysis conducted after the event by the company LeoLabs shows both satellites were predicted to have an “miss” distance of just 100 metres 24 hours before the anticipated “conjunction”.

According to the data, the Yaogan 37 satellite manoeuvred 16 hours prior to the conjunction, increasing the miss distance to 978 metres at the closest approach.

The official’s presentation emphasized the increasing threat of collisions from the high number of satellites being launched, but this incident instead suggests to me that the problem is actually under some control by satellite operators. It continues the pattern seen repeatedly, whereby satellite operators detect a potential collision before it happens, and take preventive measures to avoid it.

The real problem has to do with defunct equipment in orbit that no one is in contact with or can control. Such objects pose are a bigger threat, because they cannot be maneuvered.

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Space Perspective unveils restroom for its high altitude tourist balloon

October 23, 2023 9:14 am Robert Zimmerman

Click for original image.

The Florida company Space Perspective yesterday unveiled the restroom for its high altitude tourist balloon, Neptune, that intends to take passengers on six to eight hour flights to nineteen miles elevation.

The goal was to provide an environment closer to a spa than to a typical aircraft setting, said Dan Window, who oversees all aspects of design at Space Perspective alongside Isabella Trani. “Overall, we embraced softness and optimistic color tones in the Space Spa, which play nicely with the contrasting colors you will see through its two windows,” Window said in the same statement. “We’re also using light washes, for example, to create ambience and allow for customization of the environment as well as discourage reflections in the windows. Soothing soundscapes will be unique to what you experience in the Space Lounge, and we brought in plants as a callback to the experience that Space Perspective’s founders had in Biosphere 2.

Based on the artist’s renderning to the right, the restroom is still a very small space, smaller than the smallest bathroom in most homes.

Space Perspective says it has received deposits for more than 1,600 flight tickets at 125K each, representing $200 million in potential income. It hopes to complete its first test flight next year.

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Scientists: The activity at the few known fast radio bursts suggests they resemble earthquakes

October 23, 2023 8:57 am Robert Zimmerman

By analyzing 7,000 fast radio bursts (FRBs) detected from the three known FRBs, two scientists have found that the behavior appears to resemble the main quake and aftershocks seen in earthquakes.

The duo found that the arrival times of bursts from FRB20121102A showed a high degree of correlation, with many more bursts arriving within a second of each other than would be expected if the generation of bursts were completely random. This correlation faded away at longer timescales, with bursts separated by over a second arriving completely at random.

They drew similarities with this behaviour to how earthquakes produce secondary aftershocks in the hours or days following a tremor, but then become completely unpredictable once an episode of aftershocks passes. Moreover, they found that the rate of these FRB “aftershocks” follows the same Omori-Utsu law that characterises the occurrence of earthquake aftershocks on Earth. The law states that shortly after a large earthquake, the rate of aftershocks remains constant over a brief period of minutes to hours, after which the aftershock rate drops, decaying as roughly the inverse of the time since the main shock.

As always there is uncertainty about this conclusion. The magnitudes of the main quake and the pre- and after-shocks do not follow the curve pattern of earthquakes. Instead pre- and after-shocks can be as powerful.

The present theory is that FRBs are quakes in the crust of neutron stars, though this remains unconfirmed.

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SpaceX successfully completes two Starlink satellite launches today

October 21, 2023 8:29 pm Robert Zimmerman

SpaceX today successfully completed two Starlink satellite launches, first putting 21 satellites in orbit from Vandenberg in the early morning hours and then launching another 23 satellites from Cape Canaveral in the evening.

Both first stages successfully landed on their drone ships, respectively in the Pacific and Atlantic. The first completed its sixteenth flight, the second its fourth flight.

The leaders in 2023 launch race:

76 SpaceX
46 China
13 Russia
7 Rocket Lab
7 India

American private enterprise now leads China in successfully launches 88 to 46, and the entire world combined 88 to 74. SpaceX by itself now leads the entire world combined (excluding American companies) 76 to 74.

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First Bennu asteroid samples recovered from OSIRIS-REx return capsule

October 21, 2023 10:26 am Robert Zimmerman

Scientists have successfully removed the asteroid samples from the OSIRIS-REx return capsule that the spacecraft obtained from the asteroid Bennu in 2020.

What is more exciting is that though they now have slightly more material than the mission hoped to bring back, they haven’t even opened the capsule’s sample compartment.

The curation team processing NASA’s asteroid Bennu sample has removed and collected 2.48 ounces (70.3 grams) of rocks and dust from the sampler hardware – surpassing the agency’s goal of bringing at least 60 grams to Earth.

And the good news is, there’s still more of NASA’s OSIRIS-REx (Origins, Spectral Interpretation, Resource Identification, and Security–Regolith Explorer) sample to collect.

The sample processed so far includes the rocks and dust found on the outside of the sampler head, as well as a portion of the bulk sample from inside the head, which was accessed through the head’s mylar flap. Additional material remaining inside the sampler head, called the Touch-and-Go Sample Acquisition Mechanism, or TAGSAM, is set for removal later, adding to the mass total.

The large amount of material means there will be plenty to distribute to many scientists for study.

The reason the recovery process is going so slowly is to ensure the samples do not get contaminated by the Earth’s atmosphere. The capsule is inside a glovebox filled with nitrogen. The only way any work can be done is by inserting hands inside gloves that extend into the box. This keeps the samples protected but prevents any direct contact, which makes work slow and difficult.

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The reshuffling of Blue Origin’s management continues

October 21, 2023 10:20 am Robert Zimmerman

With the announcement yesterday that another high level executive was leaving the company — the third in less than a month — Blue Origin does appear to be making major changes in its management as well as its entire organizational structure.

Blue Origin CEO Bob Smith told employees in an email on Friday that Mike Eilola, the company’s senior vice president of operations since 2021, “is leaving the company for personal reasons” on Nov. 3 and will have his unit split into two new organizations.

Eilola’s departure follows plans announced last month by Bezos to replace Smith, who has been Blue Origin’s CEO since 2017, with longtime Amazon executive Dave Limp by the end of the year. And Brent Sherwood, the head of what had been the company’s research and development unit, will depart next month, Reuters has reported.

This is not the only management restructuring. It has also shifted its lunar lander project into its own division, as well as created a new separate division for developing in-space robotic servicing and orbital tug products.

It finally appears that Jeff Bezos is taking action to get his company working again, after more than a half decade of non-achievement since Bob Smith took over in 2017. Hopefully these changes finally will produce results.

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Gaganyaan abort test flight flies successfully after short delay

October 21, 2023 10:13 am Robert Zimmerman

When I went to bed last night India’s Gaganyaan abort test flight had been cancelled due to a launch abort at T-0, with the live stream ending and an expectation that engineers would need at least another day to fly.

When I woke up it turned out that ISRO behaved more like SpaceX than a government agency. It quickly figured out what was wrong, recycled the countdown, and two hours later successfully flew the test of its launch abort rescue system for its manned Gaganyaan capsule.

Indian Space Research Organisation (ISRO) successfully executed the Test Flight Abort Mission, for the Gaganyaan mission on Saturday after the first test flight was aborted at 8:45 am due to a problem in the engine ignition. ISRO Chief S Somanth said the planned lift off the TV-D1 rocket could not happen following an anomaly that will be analysed. He said that the engine ignition of the TV-D1 rocket did not happen over time.

The space agency then said that the errors have been identified and corrected and the second launch was scheduled for 10:00 Hrs today.

And at 10 am, ISRO successfully launched the test vehicle from Sriharikota today. Chairman Somanath expressed happiness and said, “I am very happy to announce the successful accomplishment of Gaganyaan TV-D1 mission”.

The test rocket launched, the abort system separated from the rocket as planned, the capsule was released from the abort system, its parachutes then opened, and the capsule then safely splashed down in the Bay of Bengal about ten miles off the coast, where it was recovered successfully.

ISRO plans a second launch abort test prior to flying the actual manned mission, but at this moment it appears very close to being ready for a manned mission in 2024, its present goal.

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October 20, 2023 Zimmerman/Batchelor podcast

October 20, 2023 8:27 pm Robert Zimmerman

Embedded below the fold in two parts.

To listen to all of John Batchelor’s podcasts, go here.
» Read more

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India’s Gaganyaan launch abort test aborts at T-0

October 20, 2023 8:21 pm Robert Zimmerman

India’s attempt today to test the launch abort system to be used to safely propel its manned Gaganyaan capsule away from a failing rocket aborted at T-0.

~~They need to take the spacecraft back to the assembly building in order to figure out what went wrong, so the next attempt will likely be delayed at mininum several weeks.~~ UPDATE: That’s what the head of ISRO said at the end of this live stream, but that is not what happened. See new post above.

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Metalball Studios- All metric system distance units at scale

October 20, 2023 6:01 pm Robert Zimmerman

An evening pause: Another attempt to get a sense of the vastness of existence.

Hat tip Alton Blevins.

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October 20, 2023 Quick space links

October 20, 2023 3:12 pm Robert Zimmerman

Courtesy of BtB’s stringer Jay.

According to Pakistani officials, that country is joining China’s Moon base project

This confirms a June statement. China and Pakistan had in 2018 discussed flying a Pakistani astronaut to its space station (though no deal was ever announced). This new deal could make that astronaut flight a reality.

Engineers are today uploading a software patch to help extend life of both Voyager spacecraft just outside the solar system

After checking to make sure the patch uploaded properly, they will activate it next week. The patch itself will help make fuel use more efficient. It will also prevent the communications issue that caused problems in 2022. Regardless, both spacecraft likely only have a few more years of operation, after which their nuclear power source will run out of power.

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The fractured floor of the south Utopia Basin

October 20, 2023 1:05 pm Robert Zimmerman

$The fracture floor of South Utopia Basin$

Cool image time! The picture to the right, rotated, cropped, reduced, and enhanced to post here, was taken on August 5, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). The central darker strip however comes from a September 27, 2008 image by MRO’s lower resolution context camera, inserted to fill in the blank section where one component on the high resolution camera has failed.

The picture focuses on what the scientists call a “pit interacting with a mound.” The 100-foot-deep pit is one of a very long meandering string of such pits, all of which suggest the existence of an buried river canyon into which debris is sinking. Altogether this particular string runs from several dozen miles, and its interaction with the triangular 300-foot-high mound suggests at first glance that the river that created the canyon did a turn to the left to avoid a large underground mountain, now mostly buried but revealed by its still exposed peak.

As is usual in planetary research, the first glance is often wrong. The overview map below provides a different answer, which says the formation of the aligned pits is related to the formation of the mound itself.
» Read more

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Astronomers detect what they think is the most distant known fast radio burst yet

October 20, 2023 9:50 am Robert Zimmerman

The uncertainty of science: Using ground-based radio and optical telescopes, astronomers think they have detected the most distant known fast radio burst yet, coming from a galaxy thought to be eight billion light years away.

On 10 June 2022, CSIRO’s ASKAP radio telescope on Wajarri Yamaji Country was used to detect a fast radio burst, created in a cosmic event that released, in milliseconds, the equivalent of our Sun’s total emission over 30 years.

“Using ASKAP’s array of dishes, we were able to determine precisely where [in the sky] the burst came from,” says Dr Ryder, the first author on the paper. “Then we used the European Southern Observatory (ESO) Very Large Telescope (VLT) in Chile to search for the source galaxy, finding it to be older and further away than any other FRB source found to date, and likely within a small group of merging galaxies.”

Note that the scientists have not actually measured the distance of this burst. They assume it sits at the same distance of the group of merging galaxies that surround it. Only about fifty fast radio bursts have so far been detected. As yet there is no accepted explanation as to what causes them, though knowing their assumed distance helps narrow the possibilities significantly.

The scientists also think they can use the energy from this burst to measure the intervening matter between it and Earth, and thus get a better estimate of the mass of the universe.

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Webb detects high altitude jet stream above Jupiter’s equatorial band

October 20, 2023 9:40 am Robert Zimmerman

Click for original false-color infrared image.

Using the Webb Space Telescope’s infrared capability, scientists have now detected a high altitude jet stream that flows above the equatorial band of Jupiter at speeds estimated to 320 miles per hour.

The false-color infrared image to the right shows evidence of this jetstream in three places by the brightest features seen there. From the caption:

In this image, brightness indicates high altitude. The numerous bright white ‘spots’ and ‘streaks’ are likely very high-altitude cloud tops of condensed convective storms. Auroras, appearing in red in this image, extend to higher altitudes above both the northern and southern poles of the planet. By contrast, dark ribbons north of the equatorial region have little cloud cover. In Webb’s images of Jupiter from July 2022, researchers recently discovered a narrow jet stream traveling 320 miles per hour (515 kilometers per hour) sitting over Jupiter’s equator above the main cloud decks.

These features sit about 25 miles higher than the planet’s previously detected cloudtops.

This discovery only proves what has always been evident, that Jupiter’s atmosphere is very complex with many features earlier optical observations could not see. It also only gives us a hint of that complexity. It will take numerous Jupiter orbiters observing in all wavebands, not just Webb in the infrared millions of miles away, to begin to untangle that complexity. And that untangling will take decades as well, since global weather unfolds over time. You can’t understand it simply by one snapshot. You have to watch the changes from season to season and from year to year. As Jupiter’s year is 12 Earth-years long, this research will take many lifetimes.

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Blocked by its own American government, Varda now looks to Australia

October 20, 2023 9:18 am Robert Zimmerman

Because the U.S. military as well as the FAA refused to issue Varda a license to land its recoverable capsule from orbit — carrying actual HIV pharmaceuticals that can only be manufactured in space — the company is now negotiating with a private range in Australia for landing rights.

The agreement between Varda and Southern Launch, a company based in Adelaide, Australia, would allow Varda’s second mission, scheduled to launch in mid-2024, to reenter and land at the remote Koonibba Test Range. “We plan, with the Koonibba Test Range, to conduct a reentry operation as soon as our second orbital mission, which the launch and reentry would be in mid-2024,” [Delian Asparouhov, the company’s chairman, president, and co-founder,] told Ars.[emphasis mine]

In other words, Varda’s first launched capsule, in space now but unable to land, has become a total loss, simply because the U.S. government blocked its return. The HIV drugs it produced while in orbit will never become available for sale. Nor will Varda be able to use it to demonstrate the returnable capability of its orbiting capsule.

Such a loss could easily destroy a startup like Varda, which is certainly not yet in the black as it develops its technology.

What is most disgusting about this blocking is that at the same time the military and the FAA refused Varda permission to land, those agencies had no problem letting NASA drop its OSIRIS-REx sample capsule in the same landing range in Utah.

Right now our federal government has become the enemy of the American people, doing whatever it can to stymie them, whether by intention or by incompetence.

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Winner of the 2003 Eugene M. Emme Award of the American Astronautical Society.