Please consider supporting my work here at Behind the Black., You can support me either by giving a one-time contribution or a regular subscription. There are four ways of doing so:


1. Zelle: This is the only internet method that charges no fees. All you have to do is use the Zelle link at your internet bank and give my name and email address (zimmerman at nasw dot org). What you donate is what I get.


2. Patreon: Go to my website there and pick one of five monthly subscription amounts, or by making a one-time donation.


3. A Paypal Donation or subscription:


4. Donate by check, payable to Robert Zimmerman and mailed to:


Behind The Black
c/o Robert Zimmerman
P.O.Box 1262
Cortaro, AZ 85652


You can also support me by buying one of my books, as noted in the boxes interspersed throughout the webpage or shown in the menu above.

SpaceX confirms 9th test flight of Starship/Superheavy now scheduled for May 27, 2025

9:19 am

Starship/Superheavy on March 6, 2025 at T-41 seconds
Starship/Superheavy on March 6, 2025 at T-41 seconds

SpaceX has now confirmed May 27, 2025 as the launch date for the ninth test flight of Starship/Superheavy out of its Starbase spaceport at Boca Chica.

The launch window opens at 6:30 pm (Central), with the live stream beginning 30 minutes earlier. The flight will attempt to refly the Superheavy booster used on flight seven. To push the booster’s limits, it will test “off-nominal scenarios” upon return, requiring for safety that it land in the Gulf of Mexico and not be recaptured by the chopsticks. (Just as I don’t change names or my language willy-nilly because leftists demand it, I won’t play Trump’s name-changing game here. The Gulf of Mexico was given that name more than two centuries ago, most likely by the early Spanish explorers, and that name has been good enough since.)

Starship meanwhile attempt the same test profile planned for the previous two flights but stymied by the failure of the spacecraft before reaching orbit. It will test a Starlink satellite deployment system, do a relight of one of its Raptor engines, and test its thermal ability to survive re-entry.

The company also released a report describing the results of its investigation into the previous launch failure on March 6, 2025.
» Read more

6 comments

Genesis cover

On Christmas Eve 1968 three Americans became the first humans to visit another world. What they did to celebrate was unexpected and profound, and will be remembered throughout all human history. Genesis: the Story of Apollo 8, Robert Zimmerman's classic history of humanity's first journey to another world, tells that story, and it is now available as both an ebook and an audiobook, both with a foreword by Valerie Anders and a new introduction by Robert Zimmerman.

 

The print edition can be purchased at Amazon, any other book seller, or direct from my ebook publisher, ebookit. The ebook is available everywhere for $5.99 (before discount) at amazon, or direct from my ebook publisher, ebookit you don't support the big tech companies and the author gets a bigger cut much sooner.


The audiobook is also available at all these vendors, and is also free with a 30-day trial membership to Audible.
 

"Not simply about one mission, [Genesis] is also the history of America's quest for the moon... Zimmerman has done a masterful job of tying disparate events together into a solid account of one of America's greatest human triumphs."--San Antonio Express-News

May 22, 2025 Quick space links

3:21 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

6 comments

Perseverance moves across the barren outer rim of Jezero Crater

10:46 am

Looking back at the rim of Jezero Crater
Click for full resolution. For original images go here and here.

Overview map
Click for interactive map.

Cool image time! While most of the mainstream press will be focusing today on the 360 degree selfie that the Perseverance science team released yesterday, I found the more natural view created above by two pictures taken by the rover’s right navigation camera today (here and here) to be more immediately informative, as well as more evocative.

After spending several months collecting data at a location dubbed Witch Hazel Hill on the outer slopes of the rim of Jezero Crater, the science team has finally had the rover move south along its planned route. The overview map to the right provides the contest. The blue dot marks Perseverance’s present location, the red dotted line its planned route, and the white dotted line its actual travels. The yellow lines mark what I think is the approximate area viewed in the panorama above.

That panorama once again illustrates the stark alienness of Mars. It also shows the startling contrast between the rocky terrain that the rover Curiosity is seeing as it climbs Mount Sharp versus this somewhat featureless terrain traveled so far by Perseverance. Though Perseverance is exploring the ejecta blanket thrown out when the impact occurred that formed Jezero Crater, that event occurred so long ago that subsequent geological processes along with the red planet’s thin atmosphere have been able to smooth this terrain into the barren landscape we now see.

And barren it truly is. There is practically no place on Earth where you could find the surface so completely devoid of life.

Some would view this as a reason not to go to Mars. I see it as the very reason to go, to make this terrain bloom with life, using our fundamental human ability to manufacture tools to adapt the environment to our needs.

Meanwhile, the science team operating Perseverance plans to do more drilling, as this ejecta blanket probably contains material thrown out from the impact that is likely quite old and thus capable of telling us a great deal about far past of Mars’ geological history.

Leave a comment

Conscious Choice cover

Now available in hardback and paperback as well as ebook!

 

From the press release: In this ground-breaking new history of early America, historian Robert Zimmerman not only exposes the lie behind The New York Times 1619 Project that falsely claims slavery is central to the history of the United States, he also provides profound lessons about the nature of human societies, lessons important for Americans today as well as for all future settlers on Mars and elsewhere in space.

 
Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space, is a riveting page-turning story that documents how slavery slowly became pervasive in the southern British colonies of North America, colonies founded by a people and culture that not only did not allow slavery but in every way were hostile to the practice.  
Conscious Choice does more however. In telling the tragic history of the Virginia colony and the rise of slavery there, Zimmerman lays out the proper path for creating healthy societies in places like the Moon and Mars.

 

“Zimmerman’s ground-breaking history provides every future generation the basic framework for establishing new societies on other worlds. We would be wise to heed what he says.” —Robert Zubrin, founder of the Mars Society.

 

All editions are available at Amazon, Barnes & Noble, and all book vendors, with the ebook priced at $5.99 before discount. All editions can also be purchased direct from the ebook publisher, ebookit, in which case you don't support the big tech companies and the author gets a bigger cut much sooner.

 

Autographed printed copies are also available at discount directly from the author (hardback $29.95; paperback $14.95; Shipping cost for either: $6.00). Just send an email to zimmerman @ nasw dot org.

Space Force to cut civilian workforce by 14%

9:49 am

As part of the Trump effort to reduce the size of the federal government, the Space Force will by the end of this year reduce its civilian workforce by 14%.

Civilians comprise about 5,600, or more than one-third, of the service’s 17,000 people. “Total reductions have been almost 14 percent of our civilian workforce inside the Space Force,” Saltzman said. That number is higher than the 10 percent Space Force officials previously expected to take.

And both numbers suggest that the Space Force is losing proportionally more civilians than the rest of the Defense Department, which Secretary Pete Hegseth is working to cut by five to eight percent—a process that has caused widespread uncertainty and fear among federal employees.

As is usually the case with today’s press, the article provides many quotes from people decrying these cuts. I say, it probably isn’t enough. The main job of the Space Force at this time is to issue contracts to the private sector to build satellites and spacecraft for the military. That work does not require a gigantic workforce, and it is very likely, based on the actions of this department during the Biden administration, that its leaders have been focused more on empire building that doing their job. Trimming that work force is likely practical and smart.

4 comments

Leaving Earth cover

Leaving Earth: Space Stations, Rival Superpowers, and the Quest for Interplanetary Travel, can be purchased as an ebook everywhere for only $3.99 (before discount) at amazon, Barnes & Noble, all ebook vendors, or direct from my ebook publisher, ebookit.

 

If you buy it from ebookit you don't support the big oppressive tech companies and I get a bigger cut much sooner.

 

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

 
"Leaving Earth is one of the best and certainly the most comprehensive summary of our drive into space that I have ever read. It will be invaluable to future scholars because it will tell them how the next chapter of human history opened." -- Arthur C. Clarke

May 21, 2025 Quick space links

2:48 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

  • French parliament report worries about job losses if Airbus and Thalia Alenia merger goes through
    The report also worried about decreasing interest in ESA’s government Iris2 constellation, proposed to compete with Starlink but far more expensive and not expected to launch for years.

    The second point is actually more important. It signals the shift among European governments away from the failed government model, something that the French parliament is apparently not yet able to comprehend.

27 comments

Terraced Martian butte

12:44 pm

Terraced Martian butte
Click for original image.

Cool image time! The picture to the right, cropped, reduced, and sharpened to post here, was taken on April 1, 2025, by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

The scientists label this as a “Layered Butte.” Seems like a good description. From top to bottom there appear to at a minimum about a dozen terraces, each of which represents a specific geological era on Mars.

I post this mostly because I think it shows us another example of the alien beauty of the Martian landscape. The scientific question of course is what do these layers represent. In a general sense, they indicate that over a long time period one by one these layers were laid down, and then over a likely equally long time period the top layers were worn away, one by one. The mesa is just a random spot where that erosion process was not complete, leaving behind this terraced 400-foot-high tower.
» Read more

One comment

Fish & Wildlife has expanded its regulatory rule to every tree in much of the U.S.

11:35 am

Areas now subject to regulation if you intend to cut down any trees
The blue and green areas are now subject to
Fish & Wildlife regulation if you intend to cut
down any trees

Apparently in a bid to give itself more power over every proposed building project in the United States, the Fish & Wildlife Service in October 2024 (just before the election) wildly expanded its regulatory rules for protecting endangered bats.

According to the new rules, Fish & Wildlife now considers the removal of any trees at such projects to be a risk to the endangered species, because those trees “may” have been used as roosts and would therefore threaten the species ability to survive if removed.

No matter that there may be thousands of other trees nearby, including many acres of forest. If you are building anything that involves cutting down any trees, you will be subjected to Fish & Wildlife supervision that could block construction. And the area this new rule covers includes almost the entire eastern and northern parts of the United States, as shown on the maps to the right, taken from the new regulation guidelines [pdf].

Long time reader Jack O’Leary informed me of this new power grab. He also sent me information about one particular project in Massachusetts involving the installation of a well and pump station in a forested area southeast of Boston, far from any bat hibernacula. The only impact this project might have on any bats is the removal of some trees, though the project is located in a forested area with hundreds of acres of trees all around (as shown clearly on the satellite view on Google maps).

Yet Fish & Wildlife makes it clear in its letter [pdf] to the project that its “Endangered Species Act requirements are not complete.” Fish & Wildlife admits that the project will pose no direct threat to the endangered bats, but the very act of cutting down a few trees “may affect” the bats, so therefore government regulatory supervision is required.
» Read more

9 comments

South Africa courts Starlink; Musk says no

9:33 am

The South African government appears to be offering Starlink some concessions in order to get it approved in that country, but it also appears that Elon Musk is not interested in the deal, because it would still require the company to impose racial quotas on hiring and ownership that he not only considers immoral, but are illegal by U.S. law.

In an interview at the Qatar Economic Forum in Doha, Musk did not confirm whether a deal had been made with South Africa, as suggested in the reports. However, he maintains that Starlink’s failure to secure a license is attributed to his not being black.

“First of all, you should be questioning why there are racist laws in South Africa; that’s the problem. That’s the issue you should be attacking. The whole idea with Nelson Mandela, he was a great man, was that all races should be on equal footing in South Africa, that’s the right thing to do, not to replace one set of racist laws with another set of racist laws.”

“I was born in South Africa but can’t get a licence to operate in Starlink because I’m not black,” Musk said.

The first link notes that South Africa requires a 30% ownership by “historically disadvantaged groups, primarily Black South Africans,” a racist quota that Musk is likely to reject whole-heartedly.

10 comments

China launches six satellites

9:25 am

China yesterday placed six satellites into orbit, its solid-fueled Kinetica-1 rocket lifting off from the Jiuquan spaceport in northwest China.

China claims this was a commercial launch, taking place from the launch facility at Jiuquan dedicated to commercial launches, but the rocket was built by CAS Space, a division of the Chinese Academy of Sciences. It is also solid-fueled, which means it is likely derived from missile technology, something that the Chinese government will supervise quite closely.

No word on where the rocket’s lower stages crashed inside China.

The leaders in the 2025 launch race:

60 SpaceX
30 China
6 Rocket Lab
5 Russia

SpaceX still leads the rest of the world in successful launches, 60 to 48.

Leave a comment

Astronomers detect evidence of exoplanet in weird orbit

9:13 am

Perpendicular planet
Click for original image.

Though there is much uncertainty in their data, astronomers now believe they have discovered an exoplanet orbiting a binary system of two brown dwarfs, but doing so tilted 90 degrees to the ecliptic of the orbits of those brown dwarfs.

The graphic to the right illustrates the theorized system, with the orbits of the brown dwarfs indicated in blue and the exoplanet’s orbit in orange. While sixteen exoplanets have been found orbiting outside a binary pair of stars, this is the first doing so at such an inclination.

The detection has great uncertainty however.

The candidate planet cannot be detected the way most exoplanets – planets around other stars – are found today: the “transit” method, a kind of mini-eclipse, a tiny dip in starlight when the planet crosses the face of its star.

Instead they used the next most prolific method, “radial velocity” measurements. Orbiting planets cause their stars to rock back and forth ever so slightly, as the planets’ gravity pulls the stars one way and another; that pull causes subtle, but measurable, shifts in the star’s light spectrum. Add one more twist to the detection in this case: the push-me-pull-you effect of the planet on the two brown dwarfs’ orbit around each other. The path of the brown dwarf pair’s 21-day mutual orbit is being subtly altered in a way that can only be explained, the study’s authors conclude, by a polar-orbiting planet.

The radial velocity method however requires the scientists to make a number of assumptions, and provides limited information that can result in a misinterpretation of the data. It is for this reason this exoplanet is described as a “candidate planet.” Its theorized existence must be confirmed by other measurements before it is considered real.

I think this was posted as a quick link back in early May, when the scientists first announced their work, but can’t find it now.

11 comments

China reports discovery of new microbe on its Tiangong-3 space station

8:52 am

China’s state-run press yesterday announced the discovery of a new microbe on its Tiangong-3 space station that appears designed to survive in the harsh environment of space.

In May 2023, the Shenzhou-15 crew collected surface microbial samples using sterile wipes, preserving them at low temperatures in orbit. Subsequent ground analysis revealed the novel Niallia tiangongensis species, confirmed through multidisciplinary methods including morphological analysis, genome sequencing, phylogenetic studies and metabolic profiling, the CMSA said.

…Niallia tiangongensis demonstrates exceptional stress resistance, maintaining cellular redox balance and ensuring robust growth in extreme conditions by regulating bacillithiol (BSH) biosynthesis to counteract space-induced oxidative stress, according to the CMSA. It exhibits distinctive capabilities in biofilm formation and radiation damage repair, making it a highly adaptable “all-rounder” for space environments.

More information here. This new microbe has characteristics both different and similar to microbes found on ISS. Its discovery is also not that unique, a it appears such unusual and new biology has been found in other space-related environments, such as the clean rooms on Earth used to build spacecraft. For example, dozens were found in clean room for the Phoenix Mars lander in the early 2000s.

2 comments

SpaceX launches another 23 Starlink satellites

8:28 pm

SpaceX tonight successfully placed another 23 Starlink satellites into orbit (including 13 with cell-to-satellite capabilities), its Falcon 9 rocket lifting off from Cape Canaveral in Florida.

The first stage completed its first flight, landing on a drone ship in the Atlantic. This was the third new booster SpaceX has launched since February. In previous years the company would about this number per year. This new crop so early this year suggests it is finding some of its older boosters might need retirement and its fleet therefore needs replenishment.

More likely the company is anticipating the planned major increases in its launch rate in both Florida and Vandenberg, and is increasing that fleet to meet the demand.

The leaders in the 2025 launch race:

60 SpaceX
29 China
6 Rocket Lab
5 Russia

SpaceX now leads the rest of the world in successful launches, 60 to 47.

2 comments

May 20, 2025 Quick space links

2:36 pm

Courtesy of BtB’s stringer Jay. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

4 comments

More missions to Apophis when it flies past Earth in 2029?

11:45 am

Apophis' path past the Earth in 2029
A cartoon (not to scale) showing Apophis’s
path in 2029

There were two stories today that heralded the addition of one real and two potential new spacecraft to rendezvous with the potentially dangerous asteroid Apophis when it flies past the Earth on April 13, 2029.

First, the European Space Agency (ESA) awarded a 1.5 million euro contract to the Spanish company Emxys to build a small cubesat that will fly on ESA’s Ramses mission to Apophis. This is the second cubesat now to fly attached to Ramses, with the first designed to use radar to study Apophis’ interior.

The second CubeSat, led by Emxys, will be deployed from the main spacecraft just a few kilometres from Apophis. It will study the asteroid’s shape and geological properties and will carry out an autonomous approach manoeuvre before attempting to land on the surface. If the landing is successful, it will also measure the asteroid’s seismic activity.

Second, American planetary scientists have been lobbying NASA to repurpose the two small Janus spacecraft for a mission to Apophis. These probes were originally built to go to an asteroid as a secondary payload when the Pysche asteroid mission was launched, but when Pysche was delayed they could no longer go that that asteroid on the new launch date. Since then both Janus spacecraft have been in storage, with no place to go.

The scientists say they could easily be repurposed to go to Apophis, but NASA will have to commit to spending the cost for launch, approximately $100 million. NASA officials were not hostile to this idea, but they were also non-committal. I suspect no decision can be made until the new administrator, Jared Isaacman, is confirmed by the Senate and takes office.

Time however is a factor. The longer it takes to make a decision the fewer options there will be to get it to Apophis on time.

At the moment there is only one spacecraft in space and on its way to Apophis, and that is the repurposed Osiris-Rex mission, now called Osiris-Apex. Japan might also send a craft past Apophis as part of its mission to another asteroid.

Learning as much as we can about Apophis is critical, as there is a chance it will impact the Earth sometime in the next two hundred years.

Leave a comment

Space station startup Voyager Technologies about to go public

10:52 am

Starlab design in 2025
The Starlab design in 2025. Click
for original image.

The space station startup Voyager Technologies (formerly Voyager Space) has filed its paperwork for its expected initial public offering (IPO) of stock as it competes for a major contract from NASA to build its Starlab space station.

Voyager filed a preliminary prospectus for its planned initial public offering (IPO) with the U.S. Securities and Exchange Commission May 16. The company previously confidentially filed plans for its IPO with the SEC. The draft prospectus does not yet disclose how many shares the company plans to sell or the amount the company expects to raise in the IPO. It does, though, offer financial details about Voyager.

The company reported $144.2 million in revenue in 2024 and a net loss of $65.6 million, versus $136.1 million in revenue and a net loss of $25.2 million in 2023. The company also reported revenue of $34.5 million in the first quarter of 2025, and a net loss of $27.9 million.

This story actually made me less confident about this company’s plans, with this quote the most revealing:

The company received a funded Space Act Agreement from NASA to support initial design work on the station, currently worth $217.5 million with $70.3 million yet to be paid. … The NASA award covers only initial work on Starlab, and the company will have to compete for a second phase of NASA’s Commercial Low Earth Orbit Development program that will offer additional funding for station development. Voyager revealed in the prospectus that it projects Starlab to cost $2.8 billion to $3.3 billion to develop.

So far it appears Voyager has built nothing. Instead it has used NASA’s preliminary money to do and redo its on-paper design of Starlab (compare the more recent design concept in the image on the right with this older image from 2022), which as a concept is intended to be launched whole on a single Starship launch. No metal has been cut. The company appears to be following the old big space company approach of investing nothing of its own in development.

This does not mean its station will be a failure, but I expect it will not launch as scheduled in 2029 if it wins that major NASA contract. The company will have to build it all in less than three years, something that I doubt it will be able to do.

My present rankings for the four proposed commercial stations:

  • Haven-1, being built by Vast, with no NASA funds. The company is moving fast, with Haven-1 to launch and be occupied in 2026 for an estimated 30 days total. It hopes this actual hardware and manned mission will put it in the lead to win NASA’s phase 2 contract, from which it will build its much larger mult-module Haven-2 station..
  • Axiom, being built by Axiom, has launched three tourist flights to ISS, with a fourth scheduled for early June, carrying passengers from India, Hungary, and Poland. Though there have been rumors it has cash flow issues, development of its first module has been proceeding more or less as planned.
  • Orbital Reef, being built by a consortium led by Blue Origin and Sierra Space. Overall, Blue Origin has built almost nothing, while Sierra Space has successfully tested its inflatable modules, including a full scale version, and appears ready to start building its module for launch.
  • Starlab, being built by a consortium led by Voyager Space, Airbus, and Northrop Grumman, with an extensive partnership agreement with the European Space Agency. It recently had its station design approved by NASA, but it has built nothing, and appears unwilling to cut any metal until it wins NASA’s full contract.
3 comments

Air Force issues draft approval of second SpaceX launchpad at Vandenberg

9:44 am

Air Force last week issued a draft environmental impact statement approving SpaceX’s plans to rebuild the old Space Launch Complex 6 (SLC-6, pronounced “slick-six”) at Vandenberg that was first built for the space shuttle (but never used) and later adapted for ULA’s Delta family of rockets, now retired.

The plan involves rebuilding SLC-6 to accommodate both Falcon 9 and Falcon Heavy launches, including the addition of two landing pads. With its already operational launchpad at Vandenberg, SLC-4E, the company hopes to increase its annual launch rate from 50 (approved by the FAA earlier this month) to as much as 100.

The estimated launch cadence between SpaceX’s existing West Coast pad at … SLC-4E and SLC-6 would be a 70-11 split for Falcon 9 rockets in 2026 with one Falcon Heavy at SLC-6 for a total of 82 launches. That would increase to a 70-25 Falcon 9 split in 2027 and 2028 with an estimated five Falcon Heavy launches in each of those years.

The draft assessment is now open to public comment through July 7, 2025, with a final version expected to be approved in the fall. It appears the Air Force wants it approved, as it needs this capacity for its own launch requirements. It also appears it no longer cares what the California Coastal Commission thinks about such things, as it has no authority and its members appear motivated not by environmental concerns but a simple hatred of Elon Musk.

An annual launch rate of 100 however exceeds what the FAA approved in May, doubling it. In order to move forward either the FAA will have to issue a new reassessment of its own, or some legislative or executive action will be needed to reduce this red tape. Since Vandenberg is a military base, the military in the end makes all the final decisions. The FAA simply rubber-stamps those decisions.

One comment

China launches communications satellite

9:17 am

China today successfully placed a communications satellite into orbit, its Long March 7A rocket lifting off from this coastal Wenchang spaceport.

SpaceX was supposed to have launched a set of Starlink satellites last night as well, but scrubbed the launch about two and a half minutes before launch. It plans to try again tonight.

The leaders in the 2025 launch race:

59 SpaceX
29 China
6 Rocket Lab
5 Russia

SpaceX still leads the rest of the world in successful launches, 59 to 47.

Leave a comment

May 19, 2025 Quick space links

8:25 pm

Courtesy of BtB’s stringer Jay, who apologies for their lateness. This post is also an open thread. I welcome my readers to post any comments or additional links relating to any space issues, even if unrelated to the links below.

As I noted to him when he sent these links, I had read all these stories and considered them bottom of the barrel and not worth a full post. They do rate however as quick links.

  • Jared Isaacman posts two tweets (here and here) noting how budgets are limited and we must face the reality of NASA budget cuts.
    He specifically slams SLS and the issuance of two lunar lander contracts, to SpaceX and Blue Origin. Says we can’t afford it, while robbing NASA of money it could use for “dozens of scientific programs.”

    He must be confident he has enough confirmation votes in the Senate or he wouldn’t say these things now.

5 comments

In telling us why they are fleeing Trump America, three Yale professors prove they are unqualified for their jobs

12:11 pm

What many now label the
The “Poison Ivy League” may have finally
gotten better!

Good riddance! In a New York Times op-ed on May 14, 2025, three former Yale professors attempted to explain why they have quit their jobs at Yale and moved to teach in Canada at the University of Toronto.

Unbeknownst to them, their idiotic and ignorant reasons for leaving demonstrated that they are actually completely unqualified to be college professors, and that Yale (and the United States) will be better off without them.

Professor Stanley is leaving the United States as an act of protest against the Trump administration’s attacks on civil liberties. “I want Americans to realize that this is a democratic emergency,” he said.

Professor Shore, who has spent two decades writing about the history of authoritarianism in Central and Eastern Europe, is leaving because of what she sees as the sharp regression of American democracy. “We’re like people on the Titanic saying our ship can’t sink,” she said. “And what you know as a historian is that there is no such thing as a ship that can’t sink.”

Professor Snyder’s reasons are more complicated. Primarily, he’s leaving to support his wife, Professor Shore, and their children, and to teach at a large public university in Toronto, a place he says can host conversations about freedom. At the same time, he shares the concerns expressed by his colleagues and worries that those kinds of conversations will become ever harder to have in the United States.

As noted in this analysis of their actions, all three say they are doing this because they have studied fascism and thus “equate ‘Make America Great Again’ with Adolf Hitler’s ‘Ein Volk, ein Reich, ein Führer.'”

The analogy is so weak and incoherent as to be laughable. As the essayist in this second link notes, it cheapens the meaning of fascism and in fact suggests these three “professors” don’t have the slightest idea what the word means, despite their claim they have studied it.

More important however are the three quirks of personality illustrated by their position and actions that signify why their are unqualified to be professors to begin with.
» Read more

26 comments

New research suggests the two types of streaks on Mars are caused by dry events

9:35 am

A Martian slope streak caused by a dust devil?
A Martian slope streak caused by a dust devil? From
data taken in 2023. Click for original image.

Scientists using a computer machine learning algorithm to assembly and analyze global maps of all known slope streaks and recurring slope lineae (RSL) — the two different types of streaks found on Mars whose cause as yet remain unexplained — have concluded that these streaks are likely caused by dry processes, not wet brine seeping from underground.

Slope streaks can occur randomly throughout the year, can be bright or dark, can occur anywhere, and fade with time. Recurring slope lineae instead appear seasonally in the same locations and are always dark.

You can read the published paper here. It essentially provides further details on research that was first announced at a conference in March. From its conclusion:

[O]ur observations suggest that slope streak and RSL formation may be predominantly controlled by two independent, dry drivers, 1) the seasonal delivery of dust onto topographic inclines, and 2) the spontaneous activation of accumulated dust by energetic triggers – wind and impacts for slope streaks, as well as dust devils and rockfalls for RSL.

…Our results underline the fundamental differences between slope streaks and RSL, despite their visual resemblance. Streak and RSL populations occur on opposite hemispheres (north vs south), at different topographic elevations (mostly lowlands vs mostly highlands), in opposite thermal inertia terrain (low vs high), in different wind speed regimes (above-average vs below-average), in dissimilar diurnal thermal amplitude and heat flux terrain (above-average vs average), in different WEH, H2O, H, and water vapor column terrain (average vs below-average), and in terrain that provides suitable (theoretical) conditions for liquid water at different seasons (Ls ~90° vs Ls ~ 270°).

This data suggests both types of streaks form in connection with very fine Martian dust, but the researchers also admit that the actual method in which these avalanche-type streaks form remains unclear. In both cases the streaks cause no change in the topography (sometimes even traveling uphill for short distances), produce no debris piles at their base, as avalanches typically do, and do not appear to have an obvious cause or source at the top of the streak.

Leave a comment

Ispace borrows $35 million

9:01 am

Ispace landing map
Resilience’s landing zone in Mare Frigoris

The Japanese lunar lander startup Ispace announced last week that it has obtained a new bank loan totaling $35 million from the Japanese bank Mizuho to help pay its ongoing expenses as its Resilience lunar lander attempts the company’s second try at soft landing on the Moon.

The loan is intended to secure working capital for development of mission and other related expenses. Through this financing, ispace intends to strengthen the company’s liquidity position and stabilize its financial foundation, thereby enabling agile management decisions.

In other words, the company had started to run short of cash, and needed this loan to keep operating. It had previously gotten a government loan of almost $6 million, but that did not have to be paid back for ten years. Back in 2018 it raised $90 million in investment capital, followed by an additional $53 million in 2024.

This loan suggests that Ispace might be in serious financial trouble if Resilience fails to soft land on June 5, 2025, as presently planned. The company already has two future lander contracts, one with NASA and one with Japan’s space agency JAXA, but a second failure now might cause those agencies to have second thoughts.

Leave a comment

Chinese pseudo-company completes another launch from sea platform

8:42 am

The Chinese pseudo-company Galactic Energy today successfully placed four communications satellites into orbit, its solid-fueled Ceres-1 rocket lifting off from a sea platform off the eastern coast of China.

To prove how pseudo this company is, China’s state run press did not even mention its existence in the report at the link. The solid fuel of the rocket tells us that it was derived from missile technology, and there isn’t a chance in hell that a private independent company in China could do so without the strict supervision and control from that country’s government.

Nonetheless, this was its 19th successful launch, and its fifth from a sea platform. The rocket has only failed once since since its first launch in 2020.

The leaders in the 2025 launch race:

59 SpaceX
28 China
6 Rocket Lab
5 Russia

SpaceX still leads the rest of the world in successful launches, 59 to 46.

2 comments

Third stage of India’s PSLV rocket fails during launch

9:36 pm

India’s PSLV rocket today (May 18 in India) experienced a launch failure in attempting to place an Earth observation satellite into orbit, with the failure occurring during the engine firing of the rocket’s third stage.

The link is cued to just before the tracking screen began showing the third stage drop from its planned trajectory. The suddenness of the loss of data as well as the drop in the trajectory suggests the engine exploded during firing, but that is pure speculation. Regardless, the launch, only the second India has attempted in 2025, was a failure.

Moreover, the first launch this year was a failure also, though the GSLV rocket in that launch performed as expected and deployed the satellite in its planned transfer orbit. At that point however the Indian-built satellite’s thrusters failed to operate, stranding the satellite in the wrong orbit , which soon decayed. UPDATE: According to a more recent report, it has remained in orbit but provides little service.

Thus 2025, which ISRO had predicted to be India’s most active year ever, is so far not turning out so well. ISRO hopes to begin launching its first unmanned test flights of its Gaganyaan capsule later this year, using its Heavy Lift Vehicle Mark 3 rocket (HLV-M3), an upgraded version of its GSLV rocket. One wonders if these issues will impact that schedule.

These failures by the space agency could however help the Modi government shift the balance of power away from ISRO and to its emerging private rocket sector. If the agency can’t get it done, maybe the private sector should be given the chance to do it. For example, the government has been pushing to have the ownership and management of the PSLV rocket transferred from ISRO to a private rocket company since in 2016. In the nine year since, there however has been little sign of this shift happening.

Part of the problem has been that none of India’s private rocket startups are really ready to take over these operations. The transfer is further made less likely by the strong resistance to change within ISRO’s bureaucracy. These failures provide political ammunition to push back against that resistance.

One comment

Two launches last night, by China and Rocket Lab

10:23 am

The high pace of rocket launches this year continued last night, but in a rare exception this time it had nothing to do with SpaceX.

First, the Chinese pseudo-company Landspace successfully placed six radar satellites into orbit, its upgraded version of its Zhuque-2 rocket lifting off from the Jiuquan spaceport in China’s northwest.

No word on where the rocket’s lower stages crashed inside China. Unlike its larger Zhuque-3 rocket, which has not yet flown but is being designed as a copy of a Falcon 9 with its first stage able to return to Earth vertically, the Zhuque-2 has no such ability.

Next, Rocket Lab successfully placed a commercial radar satellite into orbit, its Electron rocket lifting off from one of the company’s two launchpads in New Zealand. This launch was the third by Rocket Lab for the satellite company iQPS, and is the second in an eight-satellite launch contract with the company.

The leaders in the 2025 launch race:

59 SpaceX
27 China
6 Rocket Lab
5 Russia

SpaceX still leads the rest of the world in successful launches, 59 to 45.

5 comments

What satellite did the Varda capsule fly past during its return last week?

10:01 am

Other satellite passing under Varda's capsule
Click for video cued to this point.

Regular reader Rex Ridenoure emailed me today to note that there appears to be another satellite relatively nearby and visible in the video posted in yesterday’s quick links, taken from inside Varda’s capsule during its return to Earth.

The image to the right is a screen capture taken at 7:56 of the video. At that point the object is visible from 7:50 to 8:01 to the west and below. You can clearly see it moving from left to right (east to west). The two solar panels can also be discerned on either side of the satellite’s main body.

It later reappears for only two seconds in the lower right of the view window at 9:18, then is visible again at 10:30 to 10:33, now beginning to pass below but considerably to the north (?).

If anyone has the resources to identify this satellite, as well as its exact distance during this close approach, please comment below. It raises an interesting question on whether its existence was considered when the re-entry time was decided.

6 comments
1 … 4 5 6 7 8 … 1,102