Year: 2022

Rogozin returns, playing a soldier in the Ukraine!

1:06 pm

Dmitry Rogozin, about to go into battle!
Dmitry Rogozin, about to go into battle!

Fired from his job as head of Roscosmos and exiled to the Ukraine, Dmitry Rogozin has returned to the news! He was recently interviewed on Russian television, during which the broadcast showed clips of Rogozin getting a tour from Russian troops.

The screen capture to the left show Rogozin during that tour, dressed in military gear, though most of that gear is apparently Western in make, not Russian. Go Dmitry!

According to Antoly Zak, Rogozin during the interview promised that Russia will soon occupy Kiev, Vienna, Berlin and Budapest. As I say, go Dmitry!

Since Rogozin was sent to the Ukraine in July his work there has mirrored his “successes” at Roscosmos. At Roscosmos he was instrumental in ending Russia’s deal with OneWeb, costing Putin several billion dollars in launch income while destroying any chance for years of Russia getting any international rocket business. In the four-plus months since he arrived in the Ukraine, Russia has been on a steady retreat, losing vast areas it had previously conquered.

Hat tip to BtB’s stringer Jay, who says of Rogozin, “This guy is worse than Baghdad Bob!”

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Expanded craters in Martian ice

12:44 pm

Expanded craters in Martian ice
Click for full image.

Cool image time! The photo to the right, rotated, cropped, reduced, and sharpened to post here, was taken on August 18, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It includes a wide variety of geology related to sublimating ice, including expansion cracks as well as several different examples of what scientists call “expanded craters,” impacts that occurred in near surface ice and have been reshaped by the ice’s melting and sublimation at impact and then later. It also shows some obvious glacial fill in the two distorted craters at the center right.

A 2017 dissertation [pdf] by Donna Viola of the University of Arizona outlines nicely what we know of Martian expanded craters. As she notes in her conclusion:
» Read more

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Webb and Keck telescopes track clouds on Titan

11:08 am

Clouds on Titan
Click for original image.

Astronomers have used the Webb Space Telescope and the Keck Observatory in Hawaii to take infrared images days apart of the evolving clouds on the Saturn moon Titan.

The false-color infrared images to the right are those observations. From the press release:

As part of their investigation of Titan’s atmosphere and climate, Nixon’s team used JWST’s Near-Infrared Camera (NIRCam) to observe the moon during the first week of November. After seeing the clouds near Kraken Mare, the largest known liquid sea of methane on the surface of Titan, they immediately contacted the Keck Titan Observing Team to request follow-up observations.

“We were concerned that the clouds would be gone when we looked at Titan a day later with Keck, but to our delight there were clouds at the same positions on subsequent observing nights, looking like they had changed in shape,” said Imke de Pater, emeritus professor of astronomy at the University of California, Berkeley, who leads the Keck Titan Observing Team.

Using Keck Observatory’s second generation Near-Infrared Camera (NIRC2) in combination with the Keck II Telescope’s adaptive optics system, de Pater and her team observed one of Titan’s clouds rotating into and another cloud either dissipating or moving out of Earth’s field of view due to Titan’s rotation.

These images only increase my mourning for a Saturn orbiter. Since the end of Cassini’s mission in 2017, we have essentially been blind to the ringed planet and its many moons. These images, while producing excellent data, also illustrate well what we have lost.

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Scientists: Viking-1 might have landed on a field of Martian tsunami debris

10:26 am

The geological history of the Viking-1 Mars landing site

As outlined in their new paper [pdf], a team of scientists now hypothesize that the features that surrounded Viking-1 when it landed on Mars in 1976 were caused by two past Martian tsunamis. Each tsunamis occurred due to an impact in the theorized ocean that is believed to have existed in this part of Mars’ northern lowland plains several billion years ago.

The graphic to the right, figure 8 from the paper, shows the hypothesized sequence of events. From the caption:

(a) Pohl crater forms within a shallow marine environment, (b) triggering tsunami water and debris flow fronts. (c) The wave fronts extensively inundate the highland lowland boundary plains, including a section ~ 900 km southwest of the impact site. (d) The ocean regresses to ~ − 4100 m, accompanied by regional glacier dissection, which erode the rims of Pohl and other craters. (e) The younger tsunami overflows Pohl and parts of the older tsunami. Glaciation continues, and mud volcanoes later source and emerge from the younger tsunami deposit. (f) ~ 3.4 billion years later, the Viking 1 Lander touches down on the edge of the older tsunami deposit.

The overview map below provides the larger context.
» Read more

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Soyuz-2 rocket launches Russian military satellite

9:01 am

Russia today successfully placed a military surveillance into orbit using its Soyuz-2 rocket, launching from its Plesetsk spaceport.

Like most launches from Plesetsk, the first stage and fairings landed in the interior of Russia, the drop zones in its far north.

The leaders in the 2022 launch race:

54 SpaceX
54 China
21 Russia
9 Rocket Lab
8 ULA

The U.S. still leads China 78 to 54 in the national rankings, but trails the entire world combined 85 to 78.

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SpaceX postpones launch of Ispace’s Hakuto-R lunar lander

8:40 pm

SpaceX tonight canceled the Falcon 9 launch of the private Hakuto-R lunar lander, built by the Japanese company Ispace and carrying the UAE’s Rashid rover.

After further inspections of the launch vehicle and data review, SpaceX is standing down from Falcon 9’s launch of ispace’s HAKUTO-R Mission 1 from Space Launch Complex 40 (SLC-40) at Cape Canaveral Space Force Station in Florida. A new target launch date will be shared once confirmed.

The first stage had flown four times previously. Apparently during their standard dress rehearsal countdown and fueling before launch they detected something that cannot be immediately resolved.

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InSight continues to just hold on

5:20 pm

InSight's power levels as of November 27, 2022

The InSight science team today posted another update on the daily power levels the Mars lander’s dust-covered solar panels are producing. The graph to the right includes these new numbers.

As of Nov. 27, 2022, InSight is generating an average between 285 and 295 watt-hours of energy per Martian day, or sol. The tau, or level of dust cover in the atmosphere, was estimated at .95 (typical tau levels outside of dust season range from 0.6-0.7).

The atmosphere is definitely clearing from the dust storm that occurred in October. It also appears that not much of this dust is settling on InSight’s solar panels, since the daily power level has not dropped significantly.

Nonetheless, at these very low power levels, InSight’s future remains day-to-day. Unless it finally gets lucky and a dust devil blows the solar panels clear so more power can be generated, the mission will end should two scheduled communications sessions in a row fail to make contact.

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November 30, 2022 Quick space links

3:16 pm

Courtesy of BtB’s stringer Jay.

 

 

  • Boeing says it achieved all goals during second Starliner unmanned demo mission

    • In making this statement Boeing also touted Popular Science giving it the 2022 “Best of What’s New” award. As Jay so correctly notes, “Talk about a rigged vote! Good thing I quit subscribing to PopSci five years ago.” Considering how behind schedule Starliner is, and considering the numerous other new rocket companies flying this year, this award is an embarrassment to Popular Science.

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Musk’s success vs Trump’s failure

1:34 pm

Elon Musk arrives at Twitter
Musk arrives at Twitter, ready to clean house

While the buzz about Elon Musk’s takeover of Twitter has mostly focused on his effort to end censorship and the banning of conservatives, none of this constitutes his most important accomplishment there.

Yes, mandating freedom of speech at Twitter is a good thing. And yes, ending the banning of tens of thousands of conservative voices demonstrates Musk’s unwavering commitment to freedom and open debate.

However, it is his action to house-clean — to fearlessly remove from power the thugs and goons at Twitter who created these oppressive policies — that matters the most. By firing the Twitter apparatchiks who had installed that system of censorship and blacklisting, Musk has guaranteed that this censorship and blacklisting will not return easily to Twitter should his other business interests force him to pay less attention in the future.
» Read more

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Traveling in the mountains of Mars

11:54 am

Traveling in the mountains of Mars
Click for full resolution. Original images can be found here and here.

Overview map
Click for interactive map.

Cool image time! The panorama above was created by two photos taken by the Mars rover Curiosity’s right navigation camera on November 30, 2022. It looks to the south, into Gediz Vallis, the slot canyon that has been the rover’s major goal since it landed in Gale Crater a decade ago.

The blue dot on the overview map to the right marks Curiosity’s present position, now on its way east after making a short detour to the west towards Gediz Vallis Ridge. The yellow lines indicate the approximate area shown by this panorama. The red dotted line in both images marks the rover’s planned future route. The white arrows indicate what scientists have labeled the marker band, a distinct smooth layer seen at about the same elevation in many places on the flanks of Mount Sharp. According to the most recent update from the science team, the rover’s next drive will place it on that marker band, the second time it has been there.

From here the rover will continue south, climbing up into Gediz Vallis.

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