Category: Behind The Black

Chandrayaan-3 reaches final lunar orbit for landing

9:12 am


Click for interactive map.

India’s Chandrayaan-3 spacecraft completed its final lunar orbital engine burn today, placing it in the correct orbit to release the lander Vikram, carrying the Pragyan rover.

The release is scheduled for tomorrow, with the landing targeting August 23, 2023. This will be India’s second attempt to softland an unmanned probe on the Moon. The Vikram lander of Chandrayaan-2 failed in 2019 during its final engine burn above the surface, crashing thereafter. Engineers at India’s space agency ISRO spent several years upgrading that lander to better insure this new attempt would succeed.

The lander has been given more ability to manoeuvre during the descent, the mission allows for a bigger 4 km x 2.4 km area for landing, more sensors have been added, one of the thrusters has been removed, and the legs of the lander have been made sturdier to allow for landing even at slightly higher velocity. More solar panels have also been added to ensure that the mission can go on even if the lander does not face the sun. More tests to see the capability of the lander in different situations were carried out to make Chandrayaan-3 more resilient.

Both Vikram and Russia’s Luna-25 lander, scheduled for touchdown on August 21, will land in the high southern latitudes of the Moon, at about 70 degrees. They are not going to the Moon’s south pole, as many news reports claim.

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August 15, 2023 Quick space links

3:23 pm

Courtesy of BtB’s stringer Jay.

 

 

  • NASA is developing a larger cubesat adapter for SLS

    • It will allow SLS to carry more cubesats that are bigger. Whether any commercial cubesat company will want to fly on it remains unknown, considering the uncertainty of any SLS launch. Jay also notes many comments on X about “cubesats dying while waiting for [an SLS] launch.”

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We are becoming a nation of barbarians

2:16 pm

From Netflix's Barbarians series
Making heroes of barbarians, on Netflix

I have previous railed against the decline in the use of language in the United States. Not only do Americans now routinely use obscenities in normal language, they have been meekly acquiescing to the demands of the radical and somewhat insane queer movement to accept its weasel words in order to hide what it really is.

The recent viral and passionate endorsement by conservatives of all stripes to a new song and the performance by a new country singer, Oliver Anthony, illustrates how this decline to barbarism is accelerating. The focus of Anthony’s song is the cruel destruction of the American way of life by the power-brokers in Washington, and how those power brokers are making life so difficult for ordinary people.

What makes Anthony’s song indicative however of society’s increasing barbarous trend is his language. Right from the start he nonchalantly uses obscenities that would have once been considered unacceptable by everyone, and until recently utterly unacceptable among our more conservative population.

Yet now, even conservatives see nothing wrong with Anthony’s use of obscenities. Apparently, it is now okay for everyone to spew curse words everywhere, in public, in songs, for all to hear, from children to adults. Anthony’s message condemning the tyranny coming from Washington is too important to ignore. It must be touted widely, no matter how obscenely he couches his statement.

In other words, now even conservatives don’t care if our culture is debased and damaged. It doesn’t matter if we teach young children that they can act like barbarians, cursing and expressing wild emotions without thinking. It is policy and political power that matters, not doing right and behaving properly.

For though curses and obscenities have their place and proper time, in a civilization of rational civil adults one does not encourage their use. » Read more

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The impact that almost cracked Mars open

12:40 pm

An irregular pit chain on Mars
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on June 25, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). It shows what the scientists label an “irregular pit chain,” made up of a series of depressions scattered along a line that extends more than sixty miles to the northeast and to the southwest, beyond the edges of this high resolution close-up.

The chain likely indicates the existence of a fault line, or crack that created a void underground in which surface material is sinking. What makes this crack or fault line significant is how it and other similar fissures or cracks map across the Martian surface, extending for thousands of miles far beyond this particular pit chain and covering almost half the planet. In aggregate they imply the occurrence of past geological events so stupendous they are difficult to comprehend.
» Read more

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Ingenuity’s 55th flight completed

9:57 am

Overview map
Click for interactive map.

The Ingenuity engineering team today updated the helicopter’s flight log, showing that the 55th flight occurred on August 12, 2023, one day later than originally planned, and flew 881 feet for 143 seconds, 61 feet and 9 seconds longer than planned.

The overview map above shows the present locations of both Perseverance and Ingenuity. The green dot marks Ingenuity’s new position, while the blue dot marks where Perseverance presently sits in Jezero Crater. Based on this map, the main goal of the flight was apparently to fly Ingenuity over a route that Perseverance will likely use to return to its planned route, as indicated by the red dotted line.

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Webb confirms galaxy as one of the earliest known in the universe

9:27 am

The uncertainty of science: Using the spectroscopic instrument on the Webb Space Telescope, scientists have confirmed that one of the first galaxies found by Webb, dubbed Maisie’s Galaxy after the daughter of one scientist, is one of the earliest known in the universe, existing only 390 million years after when cosmologies say the Big Bang happened.

The data also showed that another one of these early galaxies spotted by Webb did not exist 250 million years after the Big Bang, but one billion years after, a date that better fits the theories about the early universe, based on the nature of this galaxy.

It turns out that hot gas in CEERS-93316 was emitting so much light in a few narrow frequency bands associated with oxygen and hydrogen that it made the galaxy appear much bluer than it really was. That blue cast mimicked the signature Finkelstein and others expected to see in very early galaxies. This is due to a quirk of the photometric method that happens only for objects with redshifts of about 4.9. Finkelstein says this was a case of bad luck. “This was a kind of weird case,” Finkelstein said. “Of the many tens of high redshift candidates that have been observed spectroscopically, this is the only instance of the true redshift being much less than our initial guess.”

Not only does this galaxy appear unnaturally blue, it also is much brighter than our current models predict for galaxies that formed so early in the universe. “It would have been really challenging to explain how the universe could create such a massive galaxy so soon,” Finkelstein said. “So, I think this was probably always the most likely outcome, because it was so extreme, so bright, at such an apparent high redshift.”

This science team is presently using Webb’s spectroscope to study ten early galaxies in order to better determine their age. Expect more results momentarily.

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Intuitive Machines sets mid-November launch date for its Nova-C lunar lander

9:16 am


Click for interactive map.

Intuitive Machines announced yesterday that the launch of its lunar lander, Nova-C, is now targeting a November 15-20, 2023 window, lifting off on a SpaceX Falcon 9 rocket.

The yellow dot on the map to the right indicates the landing site, Malapert A, in the southern latitudes of the Moon. The white cross indicates the south pole.

The lander had originally planned to launch in 2021, but delays in construction pushed the launch back two years. A second company, Astrobotics, has its own lander, Peregrine, that though also delayed two years, has been ready to launch since early this year. It won’t launch until the end of this year at the earliest, however, due to delays in readying its rocket, ULA’s Vulcan on its first flight.

Both India’s Chandrayaan-3 and Russia’s Luna-3 are right now on their way to the Moon, with each planning a landing next week.

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Busby Berkeley – Tap dance sequence from Lullaby of Broadway

6:01 pm

An evening pause: Time for another Berkeley extravaganza. This except is only a small part of the full thirteen-plus minute Lullaby of Broadway number in the movie Gold Diggers of 1935. This movie was made when the talking pictures were still new, and making films that highlighted “All Talking! All Singing! All Dancing!” was the rage. It was also a time when all Americans danced arm-in-arm as one of their main forms of entertainment, so interest in great dancing like this was at its height.

Hat top Judd Clark.

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August 14, 2023 Quick space links

4:47 pm

Courtesy of BtB’s stringer Jay.

 

 

 

 

 

 

 

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Today’s blacklisted American: Gestapo police in Kansas raid home of 98-year-old newspaper owner, causing her death

12:44 pm

Joan Meyer
Joan Meyer, now dead because of police raid

On August 11, 2023 the entire police department of Marion, Kansas, performed a Gestapo-like raid of the home of 98-year-old Joan Meyer, co-owner of the local newspaper, the Marion County Record, resulting in her death from a heart attack the next day.

The elderly woman, who co-owned the newspaper with her son Eric, was subjected to the raid by five officers and two sheriff’s deputies on Friday – which caused her to be ‘stressed beyond her limits and overwhelmed by hours of shock and grief.’ Eric, 69, has bashed the officers for their ‘Gestapo’ tactics in an attempt to seize information that hadn’t even gone to presses yet. Police have defended their actions.

Ms Meyer could not eat or sleep after the traumatizing hours-long ordeal. She was crying while the police raided her home and took her Alexa smart speaker – and died one day later. [emphasis mine]

It appears the police also that day raided the newspaper’s offices as well as the home of one of its reporters.

And why? All the evidence suggests this is a case of a local businesswoman working in teamwork with the police and a local judge to harass and destroy a newspaper. From the second link:
» Read more

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Residual ice on the shaded north-facing slope of northern Martian crater

11:32 am

Residual ice on Mars?
Click for original image.

Cool image time! The picture to the right, rotated, cropped, reduced, and sharpened to post here, was taken on April 10, 2023 by the high resolution camera on Mars Reconnaissance Orbiter (MRO). In the headline I am speculating a bit when I call that pile of material bunched up against the interior slope of this unnamed 18-mile-wide crater residual ice. No data is available to me that proves that assumption, but the look, the location, and the general previous data from Mars all tell me that this is what it is.

First, the location within the crater. Everyone who has lived in the northern latitudes where snow falls knows that snow will remain in the shaded slopes that face north — where less direct sunlight falls — much longer than in places where there is more sunlight. You can sometimes even find this residual snow as late as June and July in some such spots.

This phenomenon will be no different on Mars. In those alcoves this material, which looks exactly like glacial features found in many other places in the mid-latitudes of Mars (such as inside the small half-mile-wide crater in the lower left), is well protected, so that even when the rest of the ice sublimated away within the crater it remained. The cliff wall rises five hundred feet to the south, blocking sunlight so that for most of the year little directly sunlight touches this surface.
» Read more

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