Erosion at the edge of Mars’ biggest volcanic ash field

12:04 pm

Erosion at the edge of Mars' biggest ash field
Click for full image.

Cool image time! The photo to the right, rotated, cropped, reduced, and sharpened to post here, was taken on August 13, 2022 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It is another fine example of the wind-blown sculpted terrain that one finds routinely in Mars’ largest volcanic ash field, dubbed the Medusae Fossae Formation. About the size of India, this gigantic field is thought to be the source of most of the dust on Mars.

This particular location sits on the northernmost edge of that huge field. The elongated mesas mark the field’s edge, disappearing to the north but becoming thick and extensive to the south. The prevailing southeast-to-northwest winds have acted to clean most of the ash away.

We can get an idea about how deep and pervasive that field once was at this location by the pedestal crater in the middle right. Once, the floor of that crater was below the top of the ash field. At that time, the top of the dunes marked the general ground level across this entire image. Over time, the winds blew most of this material away, but the denser packed floor of the crater resisted that erosion, and thus now stands above the surrounding terrain.

The more normal-looking craters nearby could have occurred before the ash was deposited, or after it was blown away. The impact that created the pedestal crater however occurred when the ash covered everything here.
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India about to do first drop test of its home-built version of an X-37B

10:31 am

India’s space agency ISRO is now preparing for the first drop test of its own home-built version of an X-37B mini-shuttle, designed to remain in orbit for a period of time, return to Earth on a runway, and then be reused.

According to ISRO officials, the RLV [Reusable Launch Vehicle] wing body will be carried using a helicopter to an altitude of three to five km and released at a distance of about four to five km ahead of the runway with a horizontal velocity. After the release, the RLV will glide, navigate towards the runway and land autonomously with a landing gear in the defence airfield near Chitradurga.

A prototype of the RLV was flown on a suborbital test flight in 2016, landing in the ocean. The pending test would be the first to attempt a runway landing, essential if the spacecraft is to safely return to Earth and then be reused.

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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. If you buy it from 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

Arizona court kills local government’s real estate deal for World View

10:19 am

The Arizona court of appeals last month ruled that a land deal between Pima County and the high altitude balloon company World View was unconstitutional, and could not go forward.

Per the agreement, the county would fund the construction of facilities, including a 135,000-square-foot manufacturing facility, with office spaces and a launch pad, on property it already owned. World View would then lease the property from the county for 20 years. In return, the company would hire more than 400 employees, with an average salary of over $55,000, and spend $32.3 million on equipment.

Twenty years of lease payments were expected to total around $14 million, estimated to be the property’s value at that time. World View would then have the option to buy the facility for $10.

Six years ago the Goldwater Institute sued, saying this deal was illegal according to the state’s constitution. Last month the court agreed, killing the deal.

Since World View remains in operation in these facilities, Pima County will have to renegotiate at market rates. How that will effect the company itself, which now hopes to begin flying near-space tourist flights by 2024, charging $50K per person, remains unknown.

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Another Indian rocket startup tests engine

10:09 am

According to India’s space agency ISRO, it recently provided the facilities for the Indian rocket startup company Agnikul Cosmos to complete a static fire engine test of its second-stage rocket engine.

The agency fired Agnikul’s fully 3D-printed second-stage rocket engine Agnilet for a duration of 15 seconds. Agnilet is a regeneratively cooled 1.4 kN semi-cryogenic engine that uses Liquid oxygen and Aviation Turbine Fuel (ATF) as propellants. According to Agnikul, the engine is capable of generating 3kN of thrust at sea level and would propel the upper stage of Agnibaan, the company’s under-development launch vehicle.

The company had said it hoped to complete its first launch this year, but that appears highly unlikely. Nonetheless, it has raised at least $14.1 million in investment capital.

Thus, it appears India now has two private rocket companies gearing up for launch in ’23, Agnikul Cosmos and Skyroot.

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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.

Astra to lay off 16% of its workforce

9:59 am

Astra, having abandoned its Rocket-3.3 in order to develop its larger Rocket-4 smallsat launcher, announced yesterday that is laying off 16% of its workforce as part of this change in direction.

The decision to abandon Rocket-3.3 has at this time removed the company as an operational rocket company, and has thus put it behind several other competitors which are now gearing up for launch. Its third quarter report also showed a $41 million loss this year, 26% larger than the same quarter last year.

As a result, the company’s stock value has declined 94%, and is now selling for 58 cents per share. If that price does not rise above $1 before April of next year, NASDAQ has said it would delist it.

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German rocket startup unveils 2nd stage

9:52 am

The German rocket startup Rocket Factory Augsburg this week unveiled the second stage of its planned rocket, with its Helix engine attached.

This second stage will be used for engine tests in Sweden.

“The campaign will feature three main tests: The first test will last a few seconds, followed by one for around 10 seconds, then the full flight duration. Every engine is acceptance tested. Then each engine is fired a second time during stage acceptance and then started a third time for flight. We have already proven that we can fire the same engine 3x without switching out components with our long-duration hot-fire campaign. Now we want to repeat that achievement with a full upper stage.”

The company hopes to use this stage in the first orbital test flight of its RFA-1 rocket, targeting a launch late next year. That rocket will use nine more Helix engines in its first stage, and will thus be able to put into orbit slightly more mass than Firefly’s Alpha rocket or payload.

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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

Tianzhou-4 freighter undocks from Tiangong-3, while Tianzhou-5 prepares for launch

9:42 am

Chinese engineers have undocked the Tianzhou-4 unmanned freighter from their Tiangong-3 space station, even as other engineers complete the stacking of Tianzhou-5 on its rocket and move it to its launch site.

Tianzhou-4 remains in orbit. At some point it will be de-orbited to burn up over the ocean, but China’s state-run press has not said when. In the past engineers have kept these cargo freighters in orbit after undocking for long periods in order to test their capabilities.

Though the launch date for Tianzhou-5 on its Long March 7 rocket was also not revealed by today’s press report, earlier reports suggest the launch is targeting November 12th.

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Virgin Orbit’s first launch from UK delayed by red tape

9:35 am

We’re here to help you: The first launch of a satellite from the United Kingdom, launched by Virgin Orbit by taking off from a runway in Cornwall, is experiencing prolonged delays getting its license approved by the British bureaucracy.

While the company says there are no specific issues holding up approval, the permit remains unapproved. Virgin Orbit had hoped initially to launch in the summer, but could not, and this delay has also delayed its later launches and thus reduced its profits in 2022, forcing it to obtain extra investment capital from Richard Branson’s Virgin Group in order to pay the bills.

Meanwhile, the British bureaucracy struggles to issue the licenses.

The delays have attracted the attention of a House of Commons committee, which released a report Nov. 4 criticizing those delays and calling for more personnel to be assigned to reviewing license applications. “For this initial set of licence applications, the Department for Transport must provide additional resource to the CAA [Civil Aviation Authority] to ensure that the licensing process does not impede the feasibility of a launch this year,” the report stated.

A source familiar with the CAA’s licensing activities, speaking on background, noted that the CAA now had about 50 people working on license applications, up from the 35 mentioned in the report. That included one person seconded to the CAA from the U.S. Federation Aviation Administration’s Office of Commercial Space Transportation.

As always, private enterprise gets it done, while government requires dozens of people and months to simply fill out forms. Worse, we all know the CAA is going to say yes. The delay is simply a game to justify its existence, not to really accomplish anything.

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Cygnus successfully berthed at ISS

9:06 am

Cygnus approaching ISS on November 9, 2022

Despite on of its two solar panels only partly deployed, astronaut Nicole Mann was able to use the robot arm on ISS to grab Northrop Grumman’s Cygnus freighter and bring it into its port, where ground engineers successfully berthed it.

The image to the right is a screen capture from NASA TV as Cygnus approached. You can see the problematic panel at the bottom. Though it has folded out from its initial stored position, it has not opened up fully.

The freighter will stay docked to ISS until late January, during which the crew will unload about four tons of cargo and then fill it with garbage before sending it to burn up over the ocean. We should expect NASA and Northrop Grumman to also plan a spacewalk to not only inspect the panel to figure out what failed, but to see if it can still be deployed.

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Cygnus freighter continues to target ISS rendezvous tomorrow

5:19 pm

Though one of its two solar panels remains undeployed, engineers and Northrop Grumman and NASA have proceeded with four engine burns so as to rendezvous with ISS tomorrow, November 9th, with arrival in the early morning hours.

Expedition 68 NASA astronaut Nicole Mann will capture Cygnus with the station’s robotic arm, with NASA astronaut Josh Cassada acting as backup. After Cygnus capture, ground commands will be sent from mission control at NASA’s Johnson Space Center in Houston for the station’s arm to rotate and install it on the station’s Unity module Earth-facing port.

According to this NASA update, it appears that NASA managers are confident that the stuck solar panel is not blocking the grapple point, preventing the arm from grabbing the capsule. At the same time, the wording in the update is just a bit vague, and also suggests that before this capture occurs they will be inspecting Cygnus very carefully.

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