April 10, 2023 Quick space links

4:52 pm

Courtesy of BtB’s stringer Jay, who also prodded me into doing that earlier post today about the coming regulatory sledgehammer against commercial human spaceflight.

 

  • A photo of the Centaur-5 explosion during testing

    • The picture really doesn’t tell us much. Though ULA’s CEO Tori Bruno said this “anomaly” during testing will not impact the first launch of Vulcan-Centaur in May, we shall have to wait and see.

 

 

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Exploring the cratered southern highlands of Mars, part 4

3:53 pm

Overview map

Gullies in Asimov Crater
Click for full image.

Today is the last part in our four part exploration of the cratered southern highlands of Mars, begun last week. (For the early parts, go here-Part #1, here-Part #2, and here-Part #3.) Though there is no need, new readers should read the first three parts first, in order to get the larger perspective of this final post.

The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on December 20, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows the eastern main gully descending down into a pit that sits in the north center of 52-mile-wide Asimov Crater, as shown in the inset on the overview map above. (For an MRO high resolution of the western gullies into this pit, see this January 2019 cool image post.)
» Read more

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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 or any other book seller. If you want an autographed copy the price is $60 for the hardback and $45 for the paperback, plus $8 shipping for each. Go here for purchasing details. 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

Pushback: Catholic college moves to end its need for any federal funding

3:00 pm

Belmont Abbey College

Bring a gun to a knife fight: Belmont Abbey College, a small private Catholic college in North Carolina, has begun a major fund-raising campaign to free itself and its students from any need to obtain what it calls “intrusive” federal funding.

According to their fund-raising website,

Without the ability to remain financially independent and secure, we place our faith-based practices at risk from a federal government both increasingly intrusive to private institutions and increasingly hostile to faith. The mission of Belmont Abbey College is rooted in a desire to fill society with graduates prepared to restore the culture for the greater glory of God and create a world where charity and goodness thrive.

Their goal is to raise $55 million.
» Read more

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Report recommends Congress allow full regulation of commercial human spaceflight

12:10 pm

The modern instruction manual for America
The modern instruction manual for America

A new report by the RAND corporation has recommended that Congress allow the moratorium on full regulation of commercial human spaceflight, established by the Commercial Space Launch Amendments Act of 2004 and extended several times, to expire on October 1, 2023.

That recommendation came despite a lack of progress on voluntary standards and key industry metrics. While standards development organizations like ASTM International and ISO have published 20 standards related to commercial spaceflight, the RAND report noted that “companies have yet to clearly or consistently adopt them in a manner that can be confirmed or verified publicly.” A diversity of technical approaches also hinders the development and implementation of standards.

The report also found that while the FAA had developed key industry indicators to assess readiness for adopting safety regulations, there were no goals for those indicators to determine when it was time to implement regulations. “It is, therefore, difficult to assess whether there has been progress toward meeting key industry metrics when there are not clear targets that could be met,” the report concluded.

Despite that lack of progress on standards or metrics, the RAND report nonetheless concluded that allowing the learning period to expire this year was the best approach. Doing so, it argued, would allow FAA and industry to start the process of developing safety regulations in a gradual manner and avoid a rush to regulate imposed by Congress should a high-profile accident take place while the learning period is still in effect.

It also recommended additional resources for the FAA to support that regulatory process, but did not quantify an increase in the budget for or personnel assigned to its Office of Commercial Space Transportation, or AST. [emphasis mine]

The highlighted words illustrate the crushing fundamentals of all government regulation. » Read more

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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.

The Earth hangs above the Moon

10:42 am

The Earth hangs above the Moon

Cool image time! The picture to the right, cropped, reduced, and enhanced to post here, was taken by Lunar Reconnaissance Orbiter (LRO) on December 10, 2015 and released by the LRO team this week. From the caption:

LRO slewed to the east as it passed over the northwest rim (-8.536°N, 251.028°E, 82 km altitude) of the Orientale basin and snapped this spectacular Earth-Moon sequence with the NAC and WAC [cameras]. Tropical Cyclone Bohale is visible in the center of the image. MODIS (onboard the NASA Aqua satellite) imaged the same storm 3 hours after LRO.

The NAC and WAC images of the Earth were projected using a Point-Perspective projection to recreate the view one would see from the LRO spacecraft while taking the NAC image. Due to the relatively slow speed of the spacecraft slew, many NAC framelets of the Earth were acquired. All these WAC frames were oversampled and averaged, enabling a “super-resolution” color image (115 pixels across!), which was then combined with the 4000-pixel-wide NAC image.

…[For the Earth:] North is to the left, Antarctica to the right, Australia at the top, and Africa at the bottom

NAC and WAC are names of two different LRO cameras, one of which captured the Earth in high resolution color while the other captured the Moon. The two images were then combined, superimposing the Earth at the right size onto the second lunar image.

As noted in the caption, this view is as LRO sees the Earth from Lunar orbit, while taking a slewed oblique image of the Moon. It however is not how things would look if you were standing on the surface of the Moon. For one, the photo is zoomed in to get details on the lunar surface, making the Earth appear much larger.

For another, the image is taken 82 kilometers or 51 miles above the Moon. This higher altitude changes the position of the Earth relative to the Moon, making it appear farther from the horizon.

To a person standing in Orientale basin at 8 degrees south latitude (near the equator), but also near the edge of the visible near side of the Moon, the Earth would likely be very close to the horizon, but much smaller. To get a comparable view of the Earth, the person would likely need to use binoculars.

Orientale basin is mostly on the far side of the Moon, though it was known to exist before the space age because ground-based telescopes could see it on the edge of the visible face. It was only with the first lunar orbiters was the basin imaged from directly above, revealing its large size and distinct concentric rings forming its several circular rims.

At this location, the Earth would essentially always remain at approximately the same spot in the sky, though its illuminated face would wax and wane, like the Moon’s does, during the Moon’s twenty-eight day-long day.

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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

Exploring the cratered southern highlands of Mars, part 3

2:06 pm

Overview map

Pit and surface in crater
Click for original image.

This is the third part of this week’s series taking a look at some of the strange features in the southern cratered highlands of Mars. In the first part I posted a beautiful image of what appears to be a crater filled to the brim with glacial ice, surrounded by an ice sheet plain. In part two we took a look at the interior of Rabe Crater, which though very nearby does not appear to have obvious glacial features within it at all. What it has instead are deep open air pits and a lot of sand dunes.

Today’s image to the right, cropped, reduced, and sharpened to post here, takes us to the interior of an unnamed 45-mile-wide crater only about 70 miles north of Rabe. The black dot in the inset on overview map above indicates the photo’s location. The picture was taken on January 1, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). Like Rabe, this crater also has many large open-air pits. In the picture one pit, near the lower center of the picture, is surrounded by soft-looking mounds and a strangely swirling textured and uneven terrain that makes up the majority of the crater’s floor.

This picture might help explain what we saw in Rabe. The textured terrain in this unnamed crater could easily be ice-impregnated and now hardened sand dunes. The pit could be where that impregnated ice has sublimated away, leaving behind the dust from those ancient dunes which then forms new sand dunes. In Rabe, the crater floor above its pits looks very similar to this swirling textured surface, suggesting the same process is going on there.

What strengthens this explanation is the many other craters nearby, all indicated by red dots in the overview map above, that also have pits or distorted crater floors. Their proximity suggests that there is an underground ice layer in this region, always at about the same elevation, and each crater impact exposed it. With time that exposed ice, no longer pure but filled with material from the impacts, sublimated partly away, producing the pits as well as ample sand to form sand dunes.

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Pushback: University president forced out because she fired professor for including Muhammad images in classwork

1:00 pm

Mohammad meeting Gabriel
One of the two works of art, “Mohammed receiving revelation
from the angel Gabriel,” that got Prater fired.

Bring a gun to a knife fight: The president of Hamline University in Minnesota, Fayneese Miller, has now announced her early retirement after the school’s faculty demanded her resignation in January when she dismissed a professor for showing images of Muhammad as part of an art class.

That teacher, Erika Lopez Prater, immediately sued.

The lawsuit, which Lopez Prater’s lawyers said on Tuesday will soon be filed in court, reiterated the professor’s previous statement that she had offered warnings before showing the image – including in the syllabus and immediately before showing the image – and had volunteered to work with students uncomfortable with viewing the depictions.

The suit has alleged the university subjected Lopez Prater to religious discrimination and defamation, and damaged her professional and personal reputation. “Among other things, Hamline, through its administration, has referred to Dr Lopez Prater’s actions as ‘undeniably Islamophobic,’” her attorneys said in a statement.

» Read more

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Japanese businesses face major losses due to Virgin Orbit bankruptcy

9:58 am

Two Japanese companies (one partnering with a Japanese airport) now face major financial losses due to the bankruptcy of Virgin Orbit.

Two Japanese companies, ANA Holdings … and little-known Japanese satellite development start-up iQPS Inc emerged among the top six creditors when Virgin Orbit filed for Chapter 11 bankruptcy protection on Tuesday.

ANA, owed $1.65 million, had been a key partner for the Oita spaceport, entering a provisional deal with Virgin Orbit in 2021 for 20 flights of its LauncherOne rocket there. ANA said it was hopeful Virgin Orbit, which has said it is seeking a buyer, would be able to restructure and resume business.

Fukuoka-based iQPS had paid a $5.2 million deposit to launch its small, lightweight constellation satellites weighing under 100 kilograms (220 pounds), representing a major portion of the $17.2 million Series A funding it had raised in 2017.

ANA and the government of Oita prefecture had also hoped to garner some economic benefits from tourism by making this deal with Virgin Orbit. That won’t be happening now, though the expectation by this Japanese local government was never realistic. In fact, it illustrates how divorced government officials are from economic reality. No airport spaceport is going to attract a lot of tourism, even if Virgin Orbit was prospering and launching monthly.

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Starship now stacked on launchpad

9:45 am

Starship stacked on top of Superheavy

In preparation for a final wet dress rehearsal countdown followed by its first launch, Starship has now been stacked on top of Superheavy at SpaceX’s launchpad at Boca Chica, Texas.

The picture to the right is a screen capture from a short video Elon Musk posted on Twitter. SpaceX had also tweeted that its “Team is working towards a launch rehearsal next week [April 10-11] followed by Starship’s first integrated flight test ~week later pending regulatory approval.”

At this time the FAA has still not issued the launch license. By announcing its plan to launch the week of April 17th, Musk and SpaceX puts pressure the government bureaucracy to get a move on.

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Venezuela agrees to join China’s lunar base project

9:31 am

During a visit to a new Chinese space facility in China, the head of Venezuela’s space agency announced that it has agreed to join China’s lunar base project.

Marglad Bencomo, executive director of the Bolivarian Agency for Space Activities (ABAE), visited China’s new, national Deep Space Exploration Laboratory (DSEL) March 30 to discuss cooperation and exchanges. She was met by Wu Yanhua, former deputy director of the China National Space Administration (CNSA) and now executive vice chairman of DSEL. The two sides exchanged in-depth views on international cooperation in the field of deep space exploration, according to a DSEL statement.

Bencomo said that Venezuela was willing to sign a China-Venezuela Memorandum of Understanding as soon as possible to jointly promote the construction of international lunar research stations, according to the DSEL statement.

If this partnership agreement is signed, Venezuela would be the first nation outside of Russia to join China’s project. China has offered a similar partnership deal to Brazil, which will likely not agree because it is a signatory to the Artemis Accords and working with China will threaten any work it does with the U.S. For example, the UAE recently ended a project to fly a rover on a Chinese rocket for these very reasons.

This deal with Venezuela is largely empty blather, since Venezuela is presently a bankrupt communist state, barely able to feed its own people.

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Axiom sets date for next commercial manned flight to ISS

9:19 am

Axiom and NASA yesterday announced May 8, 2023 as the launch date for the private company’s second commercial flight to ISS, this time carrying three passengers out of a crew of four, two from Saudi Arabia and the third, John Shoffner, completing his second paid flight with Axiom.

Two of its crewmates are Rayyanah Barnawi and Ali AlQarni, members of the first Saudi Arabian astronaut class. Barnawi will become the first Saudi woman ever to reach space, and she and AlQarni will be the first people from the kingdom to travel to the ISS.

Retired NASA astronaut Peggy Whitson will command the mission for Axiom. The Dragon capsule used will be Freedom, making its second flight, lifting off on a Falcon 9 rocket with a new first stage. The plan is to be docked to ISS for ten days, which means for that time period ISS will have three Arab astronauts on board, including the UAE’s astronaut, Sultan Al Neyadi, who is in the middle of a six month mission and is about to do his first spacewalk.

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Chinese pseudo-company succeeds in reaching orbit again after three straight failures

9:09 am

China's spaceports
China’s spaceports

The Chinese pseudo-company I-space has finally reached orbit again with a launch today of its Hyperbola-1 (SQX-1) solid-fueled rocket, lifting off from China’s Jiuquan inland spaceport in the Gobi Desert.

After an initial launch success in 2019, the company had failed three straight times until today. No word on whether the first stage landed near habitable areas in China. Nor did the pseudo-company reveal whether the rocket carried an actual satellite into orbit.

Jiuquan is presently the only spaceport where China permits these pseudo-companies to launch, and has been expanding its facilities for these commercial operations. This also means China will be experiencing more first stages dropping on their heads of its people, which is why it is also building a commercial launchpad at the Wenchang spaceport on the coast.

The leaders in the 2023 launch race:

23 SpaceX
15 China
6 Russia
3 Rocket Lab

American private enterprise now leads China 26 to 15 in the national rankings, and the entire world combined 26 to 25. SpaceX now trails the rest of the world combined, including American companies, 23 to 28.

UPDATE from BtB’s stringer Jay: Video of the launch can be found here. Jay also notes the lack of any mention of I-space in the official Chinese press, announcing this launch. Adds weight to the conclusion that these companies are not really real, but simply divisions of the Chinese government.

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SpaceX successfully launches Intelsat communications satellite

9:41 pm

SpaceX tonight successfully used its Falcon 9 rocket to launch an Intelsat communications satellite into orbit, lifting off from Cape Canaveral.

The first stage completed its fourth flight, landing on a drone ship in the Atlantic. The two fairings completed their second and eighth flights.

The leaders in the 2023 launch race:

23 SpaceX
14 China
6 Russia
3 Rocket Lab

American private enterprise now leads China 26 to 14 in the national rankings, and the entire world combined 26 to 24. SpaceX now trails the rest of the world combined, including American companies, 23 to 27.

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Tennessee House expels two of three representatives who aided rioters

5:56 pm

The Tennessee House today successfully voted to expel two of the three Democrat representatives who aided the gun control rioters attempting to take over the statehouse on March 30, 2023.

This is an update of my blacklist column yesterday. Justin Jones and Justin Pearson were expelled, while the vote to expel Gloria Johnson fell one vote short.

Both representatives could be reappointed to their seats, and can also run in the special election to fill the now-empty seats. Both made it clear before the vote that they do not consider anything they did was wrong, and intend to return.

All power to them. They just better realize that using a bullhorn to take over the statehouse, when they have not been given the floor to speak, is wrong, and if they do it again they will be expelled again.

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April 6, 2023 Quick space links

5:21 pm

Courtesy of BtB’s stringer Jay.

  • China invites Brazil to participate in its lunar base project

    • There is no indication Brazil accepted the offer. The offer took place during a meeting between officials of the Brazil Space Agency and one of China’s pseudo-companies, China Great Wall Industry Corporation (which according to Jay “is the international launch service subsidiary” for China). Thus, this could be an effort by that pseudo-company to gain launch access to Brazil’s recently reactivated Alcântara spaceport.

 

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Pushback: Missouri school libraries sue to keep porno on their shelves; Missouri lawmakers zero out library budget

4:57 pm

Cody Smith
Missouri House Republican Cody Smith

Bring a gun to a knife fight: In 2022 the Missouri legislature passed a law that made it illegal to provide any student with books containing images “‘showing human masturbation, deviate sexual intercourse,’ ‘sexual intercourse, direct physical stimulation of genitals, sadomasochistic abuse,’ or showing human genitals.” The aim of the law was to put reasonable limits on the kind of material available in school libraries, and was passed in response to the recent nationwide effort by teachers and librarians to include such smut in these places.

A normal person’s response should be, “Gee, why do we need a law? What sane adult would ever give this stuff to kids? Isn’t that why we have a movie rating system?” A normal person would also note that anyone who did want to distribute this kind of porno to kids is really nothing more than a pedophile.

Well, it looks like the Missouri Association of School Librarians, the Missouri Library Association, and the ACLU are all pedophiles, when you get right down to it. These organizations immediately banded together to sue to overturn the law. They want to give kids porno.

On March 28, 2023 the Missouri House responded in turn to these pedophiles by passing a budget that cuts the entire $4.5 million budget for all public libraries. The cut was put forth by the House budget chairman Cody Smith, who said this:
» Read more

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Exploring the cratered southern highlands of Mars, part 2

1:44 pm

Overview map

Dune-bedrock contact in Rabe Crater
Click for original image.

Our travels in the cratered southern highlands of Mars continues. Today we visit 67-mile-wide Rabe Crater, as indicated on the overview map above. The picture to the right, cropped and reduced to post here, was taken on January 27, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO).

Rabe Crater is significant for several reasons. First, it was one of the first places on Mars where sand dunes were identified, by one of the Viking orbiters in the late 1970s [pdf]. Second, the pits and sand in its interior, are unusual and puzzling. The inset on the overview map provides a closeup look at the crater. The yellow mound in the central south of the crater floor is all dunes, which are surrounded by the pit with steep cliffs more than a 1,000 feet high.
» Read more

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University of Arizona opens major facility for building and launching satellites

12:27 pm

anechoic chamber at UA's Applied Research Building
ARB’s anechoic chamber

Yesterday I attended the grand opening of the University of Arizona’s (UA) new Applied Research Building (ARB), designed to provide satellite builders as well as its students an almost completely comprehensive facility for the assembly, testing, and launching of satellites. From this event announcement:

To keep the university at the forefront of space science and exploration, ARB will serve as a world-class test and integration center for satellites, probes, and spacecraft, including:

  • A 40-foot tall high-bay payload assembly area used for constructing high-altitude stratospheric balloons and nanosatellites also known as “CubeSats.”
  • A thermal vacuum chamber that simulates environmental conditions in space to test balloon and satellite performance that is the largest of its kind at any university in the world.
  • A non-reflective, echo-free room called an anechoic chamber to test antennae for command, control, and data relay purposes.
  • A large lab for testing the performance of a range of objects, from airplane wings to sensors.

The anechoic chamber is pictured above. For scale, if a person was standing in the middle of the chamber their height would reach about six rows up. The carbon-infused styrofoam pyramids are designed to dampen reflections of radio signals in order to simulate the space environment while testing the antennas on a satellite. This is apparently is of the largest such chambers in the United States.
» Read more

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Global warming scientists whine about India defunding climate research center

11:29 am

According to this Nature article, scientists worldwide are outraged by the decision of the Modi government in India to suspend all foreign funding to its Centre for Policy Research (CPR) for the next 180 days.

Why might the Modi government have done this? First, this is how Nature describes CPR’s work:

The CPR conducts research into public policy in India, including climate change, social and economic policy, governance and infrastructure. Last year it received about three-quarters of its grant funding from influential global organizations such as the Bill & Melinda Gates Foundation and the World Bank. Its domestic researchers have contributed to high-profile international studies such as the reports of the Intergovernmental Panel on Climate Change.

…The CPR “has played an enormously important role in informing public policy debate in India and internationally”, says Frank Jotzo, an environmental economist at the Australian National University in Canberra. Jotzo says that CPR, established in 1973, has a long and esteemed history in providing objective and honest analysis of government policy in India, and has at times criticized Indian government policy and plans. “That is invariably the case with any independent, impartial think tank or organization anywhere in the world,” he says. [emphasis mine]

In other words, CPR routinely advocates leftist policy positions. When a leftwing government is in power, its policy papers will glow with pride about the achievements of government. When a rightwing government is in power — such as the Modi administration — its policy papers will be suddenly “objective and honest” and hard-hitting, attacking the government for daring to challenge its assumptions about “climate change, social and economic policy, governance and infrastructure.”

This is typical political garbage from Nature and the leftist culture it routinely represents. CPR appears to have violated Indian law with its foreign funding, using the “funds for purposes other than those permitted under its licence.” Moreover, Modi is the elected head of India’s government. CPR works for him and the Indian public who elected him. If he decides this agency should be defunded, then so be it. For far too long leftists worldwide have claimed a permanent right to government funds. This needs to stop, and it is refreshing to see the Modi government is willing to take action in this regard.

If only Republicans in America has as much courage.

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Webb snaps infrared picture of Uranus

10:11 am

Uranus as seen in the infrared by Webb
Click for original Webb false-color image.

In a follow-up to a recent Hubble Space Telescope optical image of Uranus, scientists have now used the Webb Space Telescope to take a comparable picture in the infrared of the gas giant.

Both pictures are to the right, with the Webb picture at the top including the scientists’ annotations.

On the right side of the planet there’s an area of brightening at the pole facing the Sun, known as a polar cap. This polar cap is unique to Uranus – it seems to appear when the pole enters direct sunlight in the summer and vanish in the fall; these Webb data will help scientists understand the currently mysterious mechanism. Webb revealed a surprising aspect of the polar cap: a subtle enhanced brightening at the center of the cap. The sensitivity and longer wavelengths of Webb’s NIRCam may be why we can see this enhanced Uranus polar feature when it has not been seen as clearly with other powerful telescopes like the Hubble Space Telescope and Keck Observatory.

At the edge of the polar cap lies a bright cloud as well as a few fainter extended features just beyond the cap’s edge, and a second very bright cloud is seen at the planet’s left limb. Such clouds are typical for Uranus in infrared wavelengths, and likely are connected to storm activity.

The Webb image also captures 11 of Uranus’s 13 rings, which appear much brighter in the infrared than in the optical.

Unlike all other planets in the solar system, Uranus’s rotation is tilted so much that it actually rolls as it orbits the Sun, a motion that is obvious by comparing these pictures with Hubble’s 2014 optical picture.

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China tests vertical landing of small rocket from barge at sea

9:51 am

China's own version of SpaceX's Grasshopper

A commercial division of the Chinese Academy of Sciences (CAS) has successfully test flown its own a very small version of SpaceX’s Grasshopper, doing a vertical lift off from a barge at sea and then landing vertically on that barge.

The rocket prototype flew at an altitude of more than 1,000 meters, descended in a smooth hovering fashion and then decelerated thanks to the engine reverse thrust. The landing speed was reduced to less than two meters per second at the final stage before the rocket touched down steadily with a landing precision of under 10 meters.

The landing test took about 10 minutes, the CAS institute revealed.

The small scale of the rocket, as shown by the screen capture above, taken from the short video CAS produced of the flight, shows that CAS is a long way yet from using this technology in an orbital flight. Nonetheless, it demonstrates that at least two Chinese pseudo-companies are working hard to copy SpaceX’s reusable Falcon 9 first stage. With this test CAS has demonstrated it now has the software and fine engine control for vertical rocket landings. Based on the image of its proposed rockets at this tweet, this prototype will eventually lead to the development of larger orbital versions that look remarkably similar to what SpaceX produces.

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Spaceplane startup flies small-scale prototype for the 1st time using new rocket engine

9:31 am

The startup Dawn Aerospace, based in New Zealand, has now successfully flown a small-scale prototype of its proposed spaceplane using for the first time the company’s Aurora rocket engine.

Mk-II Aurora, a scaled down version of the spaceplane Dawn is developing for commercial operations, took to the skies March 29, 30 and 31 from New Zealand’s Gentanner Aerodrome. The initial test campaign validated key flight systems and demonstrated the benefit of rapid reusability, Dawn CEO Stefan Powell told SpaceNews.

During the first flight, the Mk-II Aurora consumed more fuel than anticipated due to a leak in the propellant system. The next day, Dawn engineers removed the Mk-II Aurora engine, took out the oxidizer tank and found the leak.

These rocket-powered test flights are a follow-up of an earlier test program in 2021 using jet engines. You can get a sense of the scale of the prototype from a picture at this article.

The company plans to fly this prototype to as high as twelve miles later this year before moving on to a larger test version. Eventually it hopes to develop a two-stage orbital system. The details however remain vague. The 2021 release suggested it was building a two-stage-to orbit version that will take off from a runway and then launch small satellites into orbit. These new stories suggest it are presently targeting the suborbital unmanned research market, with the eventual ability to do frequent flights to 70 miles altitude. Launching orbital satellites is presently only a distant goal.

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April 5, 2023 Quick space links

2:34 pm

Courtesy of BtB’s stringer Jay.

 

 

  • Tianzhou freighter will fly in formation with China’s Tiangong-3 space station

    • The plan is to periodically redock the freighter to the station “when inventories stored inside are needed.” Jay wonders whether this is a test of the similar formation flying that will be required when China’s space telescope arrives next year to orbit near the station for periodic maintenance and repair. I think he is correct.

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Pushback: Republicans move to expel Democrats who gave aid to rioters in Tennessee statehouse

12:59 pm

Riot in Tennessee Statehouse
L to R, Gloria Johnson, Justin Jones and Justin Pearson stand at
the podium, using a bullhorn to lead protester chants.

Bring a gun to a knife fight: Wasting no time following the riot by protesters that invaded the Tennessee statehouse on March 30, 2023, Republican state legislators have removed from all committees the Democratic Party legislators who gave aid to rioters and are now moving to have them expelled from office.

Resolutions have been filed against Reps. Gloria Johnson, Justin Jones and Justin Pearson after they led chants from the House floor with supporters in the gallery last Thursday. The resolution declared that the three had participated in “disorderly behavior” and “did knowingly and intentionally bring disorder and dishonor to the House of Representatives.”

Republican Reps. Bud Hulsey, Gino Bulso, and Andrew Farmer filed the resolutions. They successfully requested Monday that the House expedite the process and vote on the resolutions Thursday.

Not surprisingly, the three legislators threatened with expulsion claimed they did nothing wrong, even though all three shared a bullhorn in the chamber (as shown in the picture above), leading chants for the demonstrators. Justin Pearson proudly touted what he did in a tweet:
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Exploring the cratered southern highlands of Mars, part 1

12:06 pm

Overview map of southern cratered highlands of Mars

Glacial filled crater
Click for original image.

Today and for the next three days the cool images that I will post from Mars will explore a region that I have not covered very much in depth, the cratered southern highlands between the giant basins Argyre and Hellas. The map above is an overview of this 7,000-mile-long region, all of which is inside the 30 to 60 degree south latitude band where scientists have found much evidence of buried glaciers. In this region the bulk of that evidence is most obvious inside craters.

The picture to the right, cropped, reduced, and sharpened to post here, was taken on December 21, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO), and shows a typical example of the kind of glacial feature found. The white cross on the map marks its location, west of the Hellespontus Mountains that form the western rim of Hellas Basin.

Scientists have dubbed this feature concentric crater fill, a purposely vague term because — though it looks like glacial fill — until there is data to confirm it the scientists would quite properly rather not commit themselves. The concentric rings suggest multiple layers, each of which likely marks a different climate cycle in Mars’ geological history.

In this case the glacier features also appear to cover the entire plain surrounding the crater as well as its rim. The small crater to the west is similar, and both give the appearance that the ice sheet that covers them came after the impact, draping itself over everything, with the craters only visible because the ice sheet sags within their interiors.

More crazy features from the cratered highlands to come.

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