Year: 2022

Zig-zag ridges on Mars

2:26 pm

Zig-zag ridges on Mars
Click for full image.

Cool image time! The photo to the right, cropped and reduced to post here, was taken on April 9, 2022v by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows a series of parallel zig-zag ridges in a flat, knobby terrain.

I don’t presume to explain this at all. According to one research paper,

This interplana region consists of extensive networks of ridges—the eponymous Aeolis Dorsa—and is interpreted as having formed by topographic inversion of fluvial and alluvial deposits.

Why these ridges zig-zag however does not seem to fit into either a fluvial or alluvial explanation, both of which involve the flow of water. The quote implies these could be inverted stream channels (where the compacted streambed becomes a ridge when the surrounding terrain erodes away), but once again, the distinct zig-zag pattern seems wrong. Rivers meander, but they don’t generally turn right and left so sharply. And why should we see parallel zig-zags? This doesn’t seem to fit with a river channel origin.

The particular location, as shown on the overview map below, is close to the dry Martian equator, on the edge of Medusae Fossae Formation, the largest field of volcanic ash dust on Mars.
» Read more

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The rising federal Gestapo

1:18 pm

The Houck Family: Targets of FBI harassment and arrest
The Houck Family: Targets of FBI harassment and arrest.
The little boy in the center clearly needs to be frog-marched to prison.

It can happen here. Anyone who denies this is merely guaranteeing that tyranny in America will arrive sooner.

Worse, it is happening here, right now, at this very moment. The Houck family to the right has been in the news the past few days because on September 23, 2022 they found their home surrounded by an FBI SWAT team with guns drawn, pounding at the front door to arrest the father, Mark Houck, for a minor pushing incident that had occurred months earlier that was so minor the court had dismissed the lawsuit against Houck almost immediately. Notwithstanding its utter triviality, the Biden administration, its Justice Department, and the FBI decided it gave them a great chance to intimidate and frighten someone who happened to also be a conservative and religious activist.
» Read more

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Excerpt of Conscious Choice published by The Federalist

11:46 am

The Federalist today published a short excerpt from the last chapter of my new book, Conscious Choice: The origins of slavery in America and why it matters today and for our future in outer space.

You can read it here. They titled the excerpt most appropriately: “When Settling Space, Future Colonists Should Emulate The Pilgrims”. The key quote from this particular excerpt:

Building a new human society means the settlers must go with the intent of raising healthy and well-adjusted children. Future space colonists must remember that they are not really exploring the unknown. What they are really doing is building new societies for their children and children’s children. Such an effort carries great responsibility, and if we shirk that responsibility, our descendants will curse our memory.

While the lessons taught by the mistakes of Virginia’s colonists are long and complex (and carefully outlined in Conscious Choice), it is this lesson that is the most important to remember for future colonists in space. We will go to explore, but what we will really be doing is creating those new worlds for future generations. If we do not put our kids first and foremost, those colonies will certainly fail, as Virginia did.

And as it appears America is failing now, after several generations where children were more often considered a nuisance and something that others could take of for us.

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A galaxy slowly being eaten by its black hole

10:16 am

Spiral galaxy
Click for full image.

Cool image time! The photo to the right, rotated and reduced to post here, was taken by the Hubble Space Telescope. From the caption:

NGC 5495, which lies around 300 million light-years from Earth in the constellation Hydra, is a Seyfert galaxy, a type of galaxy with a particularly bright central region. These luminous cores — known to astronomers as active galactic nuclei — are dominated by the light emitted by dust and gas falling into a supermassive black hole. This image is drawn from a series of observations captured by astronomers studying supermassive black holes lurking in the hearts of other galaxies.

Essentially Seyfert galaxies are galaxies whose central supermassive black hole has become dominant, large enough that its gravity is slowly eating up the rest of the galaxy. As it increasingly swallows stars and gas, the black hole emits more and more energy, thus becoming an active galactic nuclei.

Two stars from our own galaxy also dominate this picture, one inside and to the right of the galaxy’s center, and the other the bright star at the bottom of the picture, both identified by the diffraction spikes.

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NASA and ESA sign simple lunar exploration agreement

9:57 am

In what appears to be an attempt by both to maintain their working relationship, even though several major European nations have not yet signed the Artemis Accords, last week NASA and ESA signed a simple agreement reaffirming their desire to work together in exploring the Moon.

Neither ESA nor NASA published the agreement, which in a photograph appeared to be little more than one page. In a Sept. 23 statement, NASA described the agreement as a “non-binding joint statement” about current and prospective future cooperation in Artemis.

Of ESA’s members, only France, Italy, Luxembourg, Poland, and the United Kingdom have signed the Artemis Accords. Thus, ESA and NASA face a conundrum. According to the accords and the NASA policy established by the Trump administration and supposedly continued under Biden, only signatories can participate in the Artemis program. Yet, most of the members of ESA have not signed, and ESA has no authority to make them do so. ESA however is building the service module for the Orion capsule — as well as other major components of Artemis — which NASA must have.

I suspect this short one page agreement is the Biden administration’s under-handed admission that — when it comes to Europe — the Artemis Accords will no longer be required.

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Astroscale to partner with UK companies to develop mission to remove two defunct orbiting satellites

9:44 am

Capitalism in space: The Japanese-based company Astroscale has signed an agreement with the United Kingdom’s space agency to develop a mission — in partnership with a number of UK companies — to remove two defunct orbiting satellites.

The COSMIC mission will be developed in collaboration with 10 UK-based partner companies in England, Scotland and Northern Ireland including: MDA UK, Thales Alenia Space UK, Nammo, GMV-NSL, NORSS, Goonhilly, Satellite Applications Catapult, Willis Towers Watson, and other advisory and industrial partners.

What Astroscale brings to the table is its magnetic capture system that it has already tested in orbit.

This is also the second contract Astroscale has won in Europe for its space junk removal technology. In May it signed a deal with OneWeb to de-orbit two of its satellites.

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Watch DART smash into asteroid today

9:27 am

At 7:14 pm (Eastern) the NASA’s Double Asteroid Redirection Test (DART) spacecraft will crash into the small and harmless asteroid Dimorphus to see if such an impact could be used in the future to change the path of another asteroid aimed at Earth.

Dimorphus is 525 feet in diameter, and is a small moon of the larger half-mile-wide asteroid Didymos. Both are presently about 7 million miles away from Earth.

I have embedded the live streams below, one from a DART camera, dubbed DRACO, that will view the asteroid as the spacecraft approaches, and the other from NASA’s official live stream. From the DRACO live stream webpage:
» Read more

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NASA managers decide finally to roll SLS back to assembly building

9:01 am

NASA managers this morning finally gave up on launching their SLS rocket in an early October launch window and scheduled rolling back the rocket to the assembly building tonight.

NASA will roll the Artemis I Space Launch System rocket and Orion spacecraft back to the Vehicle Assembly Building on Monday, Sept. 26. First motion is targeted for 11 p.m. EDT.

Managers met Monday morning and made the decision based on the latest weather predictions associated with Hurricane Ian, after additional data gathered overnight did not show improving expected conditions for the Kennedy Space Center area. The decision allows time for employees to address the needs of their families and protect the integrated rocket and spacecraft system. The time of first motion also is based on the best predicted conditions for rollback to meet weather criteria for the move.

Based on this graph [pdf] provided by NASA earlier this year, the next launch window is from October 17 to October 31, followed by another from November 12 to November 27. It is unclear whether they can meet that first window, even if all engineers do is check and recharge the flight termination system batteries.

The question of the rocket’s two solid-fueled boosters however looms. Both are now one year past NASA’s use-by date, and it appears somewhat unknown what the risks are using them. Replacing them however will entail a significant delay, from three to six months.

As I said this weekend, NASA managers face no good choice, because of the impractical and inefficient design of this rocket.

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Ganymede as seen by Juno

10:29 am

Ganymede as seen by Juno
Click to see full image.

Cool image time! The picture to the right, cropped and reduced to post here, was taken on June 7, 2021 when Juno made a close fly-by of Jupiter’s moon Ganymede. It has been reprocessed to bring out the details by citizen scientist Brian Swift.

Note the bands and parallel light and dark ridges that criss-cross the planet. Scientist as yet do not understand what caused them. Note also the bright impact craters, suggesting the release of water ice from below.

This image anticipates Juno’s upcoming September 29, 2022 fly-by of Europa, one of Jupiter’s other Galilean moons. The orbiter will pass only 221 miles above its surface, and get the best images in decades, since the Galileo mission in the 1990s.

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China’s Kuaizhou-1A rocket launches two satellites

9:36 am

Early today China’s smallsat Kuaizhou-1A rocket successfully launched two “experimental” satellites into orbit from an interior spaceport.

The satellites are part of a classified program, so little is known about them.

The leaders in the 2022 launch race:

43 SpaceX
39 China
12 Russia
7 Rocket Lab
6 ULA

American private enterprise still leads China 60 to 39 in the national rankings and the entire world combined 60 to 59.

Tomorrow ABL Space will attempt to launch from Alaska its RS1 smallsat rocket for the first time. Later in the week Firefly will make its second attempt to launch its Alpha rocket successfully. I will embed the live streams, if available.

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NASA managers might forego SLS rollback and aim for Oct 2nd launch

9:20 am

Based on the present hurricane track, NASA managers are considering the possibility of leaving SLS on the launchpad so that they can go for a launch on October 2, 2022.

NASA managers will meet this evening to evaluate whether to roll back or remain at the launch pad to preserve an opportunity for a launch attempt on Oct. 2. The exact time of a potential rollback will depend on future weather predictions throughout the day and could occur Monday or very early Tuesday morning.

If they stay on the launchpad, it means the flight termination system is questionable at launch. If the rocket goes out of control during its first test launch — a not-unreasonable possibility for a new rocket — there is a chance the range officer will not be able to destroy it.

If they roll back to the assembly building, it means the rocket’s two solid strap-on boosters will either have to be replaced, delaying the launch months more, or the rocket will launch with two boosters that are questionable.

Every choice they face is a bad one, simply because this rocket is really not well designed for practical use.

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SpaceX successfully launches 52 Starlink satellites

4:42 pm

Capitalism in space: Using its Falcon 9 rocket SpaceX today successfully put another 52 Starlink satellites into orbit.

The first stage successfully landed on a drone ship in the Atlantic, completing its fourth flight. The two fairing halves each completed their fourth and fifth flights, respectively.

Note: The Biden administration yesterday gave SpaceX the okay to activate Starlink in Iran, in order to provide that country’s citizens an option for obtaining information blocked by its government.

The leaders in the 2022 launch race:

43 SpaceX
38 China
12 Russia
7 Rocket Lab
6 ULA

American private enterprise now leads China 60 to 38 in the national rankings, and the entire world combined 60 to 58.

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