Author: Robert Zimmerman

Jupiter and two of its Moons, as seen by Cassini during 2018 fly-by

4:41 pm

Cool video time! Back in December 2000 the spacecraft Cassini made a fly-by of Jupiter on its way to Saturn, which it then orbited from 2004 to 2017. In 2018 JPL scientist Kevin Gil took the images from that flyby to create a short movie, first showing two of Jupiter’s moons, Io and Europa, as they drifted above the Great Red Spot.

Then, for the second half of the movie Gil used Cassini images taken when in orbit around Saturn to show the moon Titan moving across the rings of Saturn.

I have embedded this short video below. If I had posted this back in 2018, I don’t remember. No matter. It is amazing enough to watch again.

Hat tip BtB’s stringer Jay.
» Read more

5 comments

Today’s blacklisted American: Pro-parent event silenced by threats of violence from leftist queers

11:19 am

They’re coming for you next: An event organized by three different groups working to get the queer agenda out of elementary schools was canceled by the theater operator after he received numerous threats of violence from queer leftists.

“I was really proud to be able to provide an opportunity for a forum for some positive, hopefully positive, or what I thought would be possible discussions,” said operator Ron Onesti.

But instead it brought cascading concerns, and he said he canceled the event after receiving threats. “It’s not my role to have a stance with these issues. I’m merely the venue,” he said. “They said they were going to bring guns and show you what it’s really about. It just got really, really bad involving all kinds of things, bullets and dog feces.” [emphasis mine]

This is the left. Dare to express any opinion they disagree with, and they will work to blacklist and censor you, and if you show even the slightest resistance, they will then threaten you with violence.

Des Plaines Alderman Carla Brookman
Des Plaines Alderman Carla Brookman

The event itself had been scheduled to occur on February 8, 2023 in Des Plaines, Illinois. The organizers were a coalition of several organizations, Awake Illinois, Moms for Liberty, and Gays Against Groomers, all of whom oppose strongly the effort by queers to sexualize young children, often against the will of their parents. Though the theater is owned by the city, it was the theater operator who canceled the event.

I first found out about this story from this Pajamas Media story, which instead of focusing on the actual blacklisting and violence decided to center its story on the public statement of a Des Plaines council alderwoman, Carla Brookman, who called the effort to shut down the event wrong, a violation of free speech, and a demonstration of intolerance by the protesters.

You can watch her statement here.
» Read more

11 comments

New evidence suggests the Earth’s inner core no longer rotates faster than the planet’s outer layers

8:41 am

The uncertainty of science: The same scientists who in the late 1990s thought they had detected evidence that the Earth’s inner core rotates faster than the planet’s mantle now say that this faster rotation ceased sometime around 2009.

In 1996, Song and another researcher reported studying earthquakes that originated in the same region over three decades, and whose energy was detected by the same monitoring station thousands of kilometres away. Since the 1960s, the scientists said, the travel time of seismic waves emanating from those earthquakes had changed, indicating that the inner core rotates faster than the planet’s mantle, the layer just beyond the outer core.

…Now, Yang and Song say that the inner core has halted its spin relative to the mantle. They studied earthquakes mostly from between 1995 and 2021, and found that the inner core’s super-rotation had stopped around 2009. They observed the change at various points around the globe, which the researchers say confirms it is a true planet-wide phenomenon related to core rotation, and not just a local change on the inner core’s surface.

It is important to note that there has not been a consensus on this data, that some scientists even doubt the super-rotation ever existed. The data itself is sparse enough and includes enough gaps to allow for this disagreement, which also means this new conclusion is also uncertain.

12 comments

Communications issue shuts down one of Webb’s instruments

8:30 am

The near infrared instrument on the Webb Space Telescope, NIRISS, has been unavailable for science observations for more than a week due to a communications issue.

On Sunday, Jan. 15, the James Webb Space Telescope’s Near Infrared Imager and Slitless Spectrograph (NIRISS) experienced a communications delay within the instrument, causing its flight software to time out. The instrument is currently unavailable for science observations while NASA and the Canadian Space Agency (CSA) work together to determine and correct the root cause of the delay.

According to the update, the instrument’s hardware, as well as the rest of the telescope, has been unaffected and remains in good condition.

In November the telescope’s mid-infrared instrument MIRI experienced its own problems with one of its “grating wheels” that allows it to some spectroscopy. Since then the instrument has been in use, but it is unclear if the issue was resolved or observations have had to be adjusted to avoid the problem.

Leave a comment

January 23, 2023 Quick space links

3:12 pm

Courtesy of BtB’s stringer Jay.

 

 

 

  • 2022 was a profitable year for space insurance companies, the third in a row

    • Jay notes this interesting detail from article: “Many LEO operators including SpaceX are choosing to forgo insuring satellites, not least because the size of their constellations gives them built-in redundancy. The estimated lifetimes of satellites in LEO are also far shorter than their cousins in GEO.”

Leave a comment

Today’s blacklisted American: Game publisher fires employee for expressing conservative opinions

1:01 pm

Limited Run Games: opposed to free speech

They’re coming for you next: The game publisher Limited Run Games recently fired its community manager Kara Lynne (also known by her married name, Kara Gooch) because one anonymous person complained to the company that she had expressed some conservative opinions on her personal account on Twitter.

Twitter user Purple Tinker (who has since deleted their account) described Lynne as “a transphobe” with several known right-wing and transphobic accounts on the list of accounts she follows on Twitter, including Ben Shapiro, Libs of TikTok, and others.

Purple Tinker pointed to several tweets made by Lynne in the past, including one in which she says “if you think the # of trans crying about using a bathroom is higher than the perves [sic] using the excuse, you are what is wrong with this world”. Lynne has since made her Twitter account private, so it’s not possible to see any of the tweets she made.

Apparently, Lynne had expressed enthusiasm in an earlier tweet about the game Hogwarts Legacy, based on J.K. Rowling’s Harry Potter books, and since Rowling is now being blacklisted by the left and its allies in the queer movement because she thinks rationally that you can’t become a woman merely because you say so, Purple Tinker decided Lynne had to also be investigated and destroyed for defying that blacklist.

You can read Lynne’s detailed full response to her firing here. Her account of her firing tells us a lot about the weak character of the management of her former employer.
» Read more

14 comments

Martian crater with mound of ice? mud? hardened sand?

12:17 pm

Crater with mound
Click for full image.

Cool image time! The photo to the right, cropped to post here, was taken on October 31, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a small 4,000-foot-wide crater that is practically filled with a smooth, almost perfectly spherical mound, with the rest of the crater interior filled with sand dunes and what appears to be glacial debris.

Is that mound also glacial debris, covered with a layer of dirt and dust to protect it? If so, one wonders how the ice ended up in this shape. There are other craters with similar mounds in this region, all suggesting glacial debris but with the same question. Craters with lots of near surface ice in this region more often have a squishy blobby look.

Is the mound instead possibly mud, expressing the existence of a mud/ice volcano? If so, it shows no central pit or caldera, which is typical of such things.

Is it hardened sand? Martian dust that gets blown into craters generally gets trapped there, building up over time. If so, however, why does it have a smooth almost perfectly rounded shape? The ripple sand dunes surrounding it are more like what you would expect.

The small craters on the mound also tell us that it is hardened and old, no matter what it is made of.
» Read more

One comment

Animation of Jupiter’s clouds

9:19 am

Cool video time! Using a photo taken by Juno during its 2018 fly-by of Jupiter, citizen scientist Thomas Thomopoulos has created a short animation showing the flow of Jupiter’s clouds. He also added some 3D relief by assigning elevation to the image’s greyscale, with lighter regions assigned higher altitudes.

I have embedded the animation below. Run it at the slowest speed for the best effect. It is quite spectacular, though it is also important to note that it is not reality. Thomopoulos is simply giving us a hint of the natural evolution of the cloud structures, both in elevation and in time.

You can see another equally impressive animation by Thomopoulos here of several of Jupiter’s polar storms, using AI technology to smooth out the loop.
» Read more

Leave a comment

First Vulcan rocket arrives at Cape Canaveral

8:50 am

ULA’s first Vulcan rocket has now arrived at Cape Canaveral in preparation for its planned inaugural launch before the end of March.

This first mission for Vucan will fly in a VC2S configuration. “VC” stands for “Vulcan Centaur.” The number, in this case “2,” represents the number of solid rocket boosters needed and the final letter stands for the payload fairing length.

VC2S will use a 51-foot-long Standard payload fairing. Nestled inside will be a few different payloads. This mission will send the first two Kuiper prototype satellites into Low Earth Orbit (LEO), Astrobotic’s Peregrine lunar lander to the Moon and a Celestis Memorial Spaceflight payload into deep space. The remains of several people connected to the original Star Trek series will be launched on what Celestis dubbed the “Enterprise Flight,” including show creator Gene Roddenberry along with actors Nichelle Nichols and Jackson DeForest Kelley.

This first Vulcan launch will also be the first of two flights required by the Pentagon in order to certify Vulcan for military launches. Since ULA already has contracts for seven Vulcan military launches, it very much wants to get these two launches off this year, as soon as possible. According to the article at the link, ULA is thus aiming to fly this year those two test flights, followed quickly by the first military launch.

Whether it can complete three Vulcan launches in 2023 is quite uncertain. For example, it will need to get four more BE-4 engines from Blue Origin for the second and third launches, and there is no indication at this time that Blue Origin is close to delivering.

Then there is the delays and risks involved with this first launch. Though ULA has decades of experience building and launching rockets, the first launch of a rocket almost always experiences delays during testing. We should expect the same with Vulcan.

Assuming this schedule holds, however, this means ULA is targeting 10 launches in 2023, five Atlas-5 launches, two Delta Heavy launches, and three Vulcan launches. That would be the most launches by this company in a year since 2016.

Leave a comment

First launch from Shetland Islands predicted for the fall

8:36 am

According to an official at the SaxaVord spaceport in the Shetland Islands in Scotland, its first orbital satellite launch is now expected before the end of this year.

Scott Hammond, director of operations at SaxaVord spaceport, acknowledged there is often uncertainty around timetables for private space launches. However, he said a recent agreement with a German company, Rocket Factory Augsburg, would see them begin testing their engines in the summer ahead of a launch later in the year.

He told the Press Association: “Probably in July, we’re going to start full stage testing. That will be the full, first stage, nine engines all firing for about three minutes. So that’ll be really, really impressive. I expect about four months or so of that depending on success. And then we’re looking with Rocket Factory to launch towards the end of the year, for the orbital launch.”

I would not bet a lot of money on this schedule. Rocket Factory is a German rocket startup that has never launched before, and the first launch from such startups are routinely delayed months to years. What Hammond is really doing is creating buzz for SaxaVord, even as a rival spaceport in Sutherland, Scotland, is getting built.

Leave a comment

January 20, 2023 Quick space links

3:51 pm

Courtesy of BtB’s stringer Jay.

 

 

 

 

 

 

5 comments

The youngest flood lava on Mars, flowing past a crater

2:07 pm

Crater with lava flow
Click for full image.

Cool image time! The photo to the right, rotated, cropped, reduced to post here, was taken on December 3, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The title given to this image by the MRO science team is “Upstream Edge of Crater in Athabasca Valles.” The crater itself is a pedestal crater, uplifted from the surrounding terrain because it was more resistant to erosion.

The material to the east of the crater’s rim definitely appears to have flow characteristics, but is it wet mud, glacial ice, or lava?

To figure this out we need as always some context. The latitude, 8 degrees north, immediately eliminates mud or glacial material. This location is in the dry equatorial regions of Mars, where no near surface ice has yet been found. Thus, the flow features are likely hardened lava.

What direction however was the flow? Was it flowing to the north, widening as it moved past the pedestal crater? Or was it to the south, narrowing as it pushed past that crater? To answer this question we need to widen our view.
» Read more

Leave a comment

Today’s blacklisted American: Minnesota to blacklist all Christians, Jews, or Muslims from teaching

12:48 pm

The new Marxist rules for teaching in Minnesota

They’re coming for you next: Minnesota’s unelected education bureaucracy is about to impose new licensing requirements for teachers that will essentially blacklist all Christians, Jews, or Muslims by requiring teachers to teach the queer agenda as well as the critical race theory to young children.

Minnesota’s Professional Educator Licensing and Standards Board (PELSB), a division of the state Department of Education, has been working to change teacher certification requirements since 2019. Its latest public draft, which is finalized save for a few tweaks that don’t affect the content, includes multiple requirements that licensure candidates publicly support critical race theory and transgender ideology and include both in their teaching. Teachers must receive state licensure to be employed in Minnesota public and many private schools. [emphasis mine]

You can read the new licensing rules here [pdf]. The screen capture above shows the language requiring teachers to agree to the queer agenda. It also hints at full approval of the Marxism program of critical race theory, whereby all western civilization and America in particular is seeped in bigotry and hate, and must be condemned at all times.

Only a few paragraphs later the hints go away, and the licensing requirements make it clear that all teachers must from now on condemn the heritage of the United States.
» Read more

20 comments

Ingenuity completes 40th flight

9:52 am

Overview map
Click for interactive map.

As predicted by the Ingenuity engineering team on January 17, 2023, the Mars helicopter yesterday completed its 40th flight, flying approximately 92 seconds and 584 feet to the northwest to place it at the head of the hollow that Perseverance will travel to climb up onto the delta that flowed into Jezero Crater sometime in the past.

The green dot on the overview map to the right shows the helicopter’s position, post flight. The blue dot shows Perseverance’s present position. The red dotted line indicates the rover’s future route.

At the moment, only eleven images have been returned from the flight, and these only show the first 20 seconds of flight. The flight however has been added to the helicopter’s flight log, which shows that Ingenuity actually flew about 23 feet farther and 7 seconds longer than expected. This extra distance was likely because the helicopter needed to find a good landing site, using its upgraded software that allows it to fly over rougher terrain.

One comment

The only rocket stage recovered during the 1960s space race returns to Florida

9:00 am

A section of the Gemini 5 Titan rocket first stage that was recovered by chance right after its launch on August 21, 1965 has now been moved from storage in Alabama to be put on display at the Cape Canaveral Space Force Museum.

The artifact, which encompasses the upper portion of the Titan II rocket’s first stage, flew with the vehicle from Launch Complex 19 at Cape Kennedy (today Cape Canaveral) in Florida for the first two and a half minutes of flight, reaching about 50 miles high (80 kilometers) before its two-nozzle engine exhausted its propellant supply. Unlike most rockets, which jettison their first stage before firing their second stage engine(s), Gemini-Titan “fired in the hole,” igniting the upper stage before separating from the first.

The Titan II first stage then plunged back to Earth, impacting the Atlantic Ocean off the coast of Bermuda with no plans for its recovery. It was only by happenstance that a U.S. Air Force plane spotted the segment floating in the water, which led to a U.S. Navy destroyer, the U.S.S. Du Pont, hauling it out of the ocean and back to shore.

Whether the surviving segment, which housed the booster’s oxidizer tank, tore apart from its fuel tank and engine section during the tumble back to Earth or on contact with the ocean is unknown. The lower section of the stage presumably sank to the seafloor.

Until the shuttle started flying in 1981, this booster section was the only first stage recovered from any American rocket launch. The rocket itself had lifted Gordon Cooper and Pete Conrad into orbit, where they spent a then record eight days, proving humans could survive in space long enough to get to and from the Moon.

Lots of pictures at the link. More pictures here.

2 comments

Investment in space dropped 58% in 2022

8:49 am

According to a new report by Space Capital, a New York venture capital firm, overall investment in space dropped 58% in 2022, dropping from the $47.4 billion peak in 2021 to $20.1 billion in 2022.

Space Capital, a New York-based venture capital firm, published its Space Investment Quarterly Jan. 19 for the fourth quarter of 2022. The report notes that early-stage startups fared better than later-stage and growth companies.

One exception was SpaceX, which raised $2 billion in 2022, or 32 percent of the total 2022 private investment in space infrastructure. SpaceX was also in the minority because it raised capital in both 2021 and 2022. Only 38 percent of the space infrastructure companies that raised capital in 2021 sought additional funding in 2022.

Essentially, if you remove SpaceX from the picture, major investment in space startups largely came to a halt in 2022. Furthermore, the report states that it also expects further investment in 2023 to be parsimonious. Apparently the venture capital community has realized how risky many of these space startups are (as seen by the loss of stock value for companies like Virgin Galactic, Astra, and Virgin Orbit), and is becoming more careful where it puts its money.

4 comments

Lucy team suspends efforts to complete deployment of unlatched solar panel

8:25 pm

Lucy's planned route
Lucy’s planned route to explore the Trojan asteroids

The Lucy science team has decided to suspend its efforts to complete the deployment of the unlatched solar panel that failed to fully open shortly after launch, having determined that little can be accomplished while the spacecraft is so far from the Sun.

A series of activities in 2022 succeeded in further deploying the array, placing it into a tensioned, but unlatched, state. Using engineering models calibrated by spacecraft data, the team estimates that the solar array is over 98% deployed, and it is strong enough to withstand the stresses of Lucy’s 12-year mission. The team’s confidence in the stability of the solar array was affirmed by its behavior during the close flyby of the Earth on Oct. 16, 2022, when the spacecraft flew within 243 miles (392 km) of the Earth, through the Earth’s upper atmosphere. The solar array is producing the expected level of power at the present solar range and is expected to have enough capability to perform the baseline mission with margin.

The team elected to suspend deployment attempts after the attempt on Dec. 13, 2022, produced only small movement in the solar array. Ground-based testing indicated that the deployment attempts were most productive while the spacecraft was warmer, closer to the Sun. As the spacecraft is currently 123 million miles (197 million km) from the Sun (1.3 times farther from the Sun than the Earth) and moving away at 20,000 mph (35,000 km/hr), the team does not expect further deployment attempts to be beneficial under present conditions.

The spacecraft will do another Earth fly-by on December 12, 2024, which will send it to the Trojans on the left side of the map above. Before that Lucy will do a mid-course correction in February 2024, at which time the engineers will reassess whether to try again to latch the panel, when Lucy is closer to Earth and thus also closer to the Sun.

One comment

January 19, 2023 Quick space links

3:44 pm

Courtesy of BtB’s stringer Jay.

  • ULA plans 10 Vulcan launches in 2023

    • My count of total planned ULA launches in ’23 is 11, but that includes two Delta Heavy launches and five Atlas-5 launches. It seems a complete fantasy to expect ULA to complete 17 launches this year (10 of which will be the as yet unlaunched Vulcan), when ULA has never completed more than 16 in a single year, and that record was set in 2009, more than a decade ago. In fact, the company has never completed more than 8 launches in a year since 2016.

 

 

 

 

 

5 comments

Machete Mesa on Mars

12:41 pm

Machete Mesa on Mars
Click for full image.

Cool image time! The picture to the right, cropped to post here, was taken on November 30, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a variety of ridges in a region of Mars called Arabia Terra, which is also the largest transition zone between the Martian southern cratered highlands and the northern lowland plains.

While this picture illustrates some nice geological facts about Mars (see below), I post it simply because of the dramatic sharpness of the ridge on top of the mesa, which I guess is several hundred feet high, but only a few feet across, at most, at its peak. A hike along this ridgeline would be a truly thrilling experience, one that the future human settlers on Mars will almost certainly find irresistible. Put this location on your planned tourist maps of Mars. It will likely be an oft-visited site.
» Read more

2 comments

Today’s blacklisted American: Court clerk fired despite having valid health and religious reasons to refuse jab

11:52 am

Judge Claire Bradley, petty tyrant

They’re coming for you next: Today’s blacklist story is only one of tens of thousands, but it illustrates starkly the cruel and vindictive intolerance of the petty dictators who now run American society. It doesn’t matter if the jab doesn’t work. It doesn’t matter if you have valid health reasons for avoiding it. It doesn’t matter that you have religious beliefs. It doesn’t matter if you offer to be tested frequently to prove you aren’t sick. It doesn’t even matter that no mandate has been imposed by the local government.

The boss demands you to get jabbed, and if you dare to refuse, the boss will fire you.

Less than three years from retirement, Kitsap County court clerk Tammy Duryea was terminated in 2021 from her job because she did not wish to get the COVID shots for both health and religious reasons.

She has now sued, but her chances of victory are quite slim, especially since it was the court judges, led by Judge Claire Bradley, the presiding judge of the District Court, who imposed the shot mandate.
» Read more

5 comments

Geotail mission finally ends after 30 years

9:18 am

Though initially planned as a four year mission, the Geotail probe — designed to study the Earth’s magnetosphere — finally failed on June 28, 2022 after 30 years of operation.

With an elongated orbit, Geotail sailed through the invisible boundaries of the magnetosphere, gathering data on the physical process at play there to help understand how the flow of energy and particles from the Sun reach Earth. Geotail made many scientific breakthroughs, including helping scientists understand how quickly material from the Sun passes into the magnetosphere, the physical processes at play at the magnetosphere’s boundary, and identifying oxygen, silicon, sodium, and aluminum in the lunar atmosphere.

The mission also helped identify the location of a process called magnetic reconnection, which is a major conveyor of material and energy from the Sun into the magnetosphere and one of the instigators of the aurora. This discovery laid the way for the Magnetospheric Multiscale mission, or MMS, which launched in 2015.

Though it failed in June, engineers worked until November attempting to recover the spacecraft. When those efforts failed, NASA officially ended the mission.

Leave a comment

ABL completes investigation of January 10th launch failure

9:13 am

ABL yesterday released the results of its investigation into the January 10th launch failure of its RS1 rocket.

Just over ten seconds after launch the rocket suffered “a complete loss of power,” its engines shut down, and it came crashing back to Earth about 60 feet to the east of the launch pad. The resulting explosion and fire damaged and destroyed significant equipment, including a nearby “fabric hanger.” The report then goes on to describe the cause:
» Read more

2 comments

SpaceX completes first Starlink launch of 2023

8:53 am

Using a new first stage, SpaceX’s Falcon 9 rocket successfully launched 51Starlink satellites into orbit this morning from Vandenberg Space Force Base, the first Starlink launch of 2023.

The first stage successfully landed on a drone ship in the Pacific.

At present, SpaceX and China are tied for the lead in the 2023 launch race, each having completed 5 launches so far this year. No one else has launched as yet.

Leave a comment

Astronauts complete Soyuz seat liner installation inside Endurance

9:31 pm

Astronauts today completed the installation of Frank Rubio’s Soyuz seat liner inside the Dragon capsule Endurance so that he can return to Earth should an emergency requiring evacuation occur on ISS.

On Jan. 17, NASA Flight Engineer Josh Cassada, with assistance from NASA Flight Engineer Nicole Mann, worked inside the SpaceX Dragon Endurance crew ship collecting tools and readying the spacecraft for a seat liner move. The seat liner move, completed today, Jan. 18, ensures NASA Flight Engineer Frank Rubio will be able to return to Earth in the unlikely event of an emergency evacuation from the International Space Station. Rubio originally launched to the station with cosmonauts Sergey Prokopyev and Dmitri Petelin aboard the Soyuz MS-22 crew ship on Sept. 21, 2022. The change allows for increased crew protection by reducing the heat load inside the MS-22 spacecraft for Prokopyev and Petelin in case of an emergency return to Earth.

It would be fascinating to get more details about the work that was done to install this Soyuz seat liner in Endurance. Clearly some improvisation was required.

Regardless, this work is only temporary, since Rubio’s seat liner will be shifted again into the replacement Soyuz scheduled to arrive in mid-February.

3 comments

January 18, 2023 Quick space links

5:03 pm

Courtesy of Jay, BtB’s intrepid stringer.

 

 

 

 

2 comments
1 … 164 165 166 167 168 … 1,084