M Thomas Apple Author Page

Science fiction, actual science, history, and personal ranting about life, the universe, and everything

“New” rock “found” in Somalia has two (or three) “new” minerals

January 7, 2023
MThomas

Canadian researchers said the rock was found in rural Somalia two years ago, but locals believe it is much older.

They call the stone Nightfall, and say it is documented in poems, songs and dances that stretch back five generations. It is used today to sharpen knives.

https://www.bbc.com/news/world-africa-63800879

The “new” rock is apparently a meteorite that fell to Earth at least 100 years ago (or more, depending on how you define a “generation”). The two newly-identified minerals are being called “elaliite” (after El Ali, Somalia) and “elkinstantonite” (after NASA planetary evolutionary expert Lindy Elkins-Tanton).

And there’s still one more as-yet-unidentified mineral in the 70-gram rock fragment at the U of Alberta (the original is about 15 tons, and is reported to be the 9th largest such meteorite to have survived entering the Earth’s atmosphere). These three minerals evidently do not exist naturally on Earth. Makes you wonder how many other such minerals are still floating around in space.

And of course, how they might be used to make incredibly strong yet flexible spacecraft materials. (FWIW NASA was already talking about “new” materials such as carbon nanotubes and self-healing piezoelectronic “skins” some twenty years ago…)

Now, maybe it’s just me, but I have a feeling that a 15-ton rock falling into the desert would have raised all sorts of hell. At least locally. Nothing like a 143,000 ton rock, of course. Is there really no record of this thing falling out of the sky? Maybe it’s time to talk to non-European communities and to take their oral legends a bit more seriously.

The 2022 Year of Space Exploration

January 2, 2023
MThomas

Lots and lots and lots of space stories occurred in 2022.

From DART to Landsat, Sagittarius A* black hole to CAPSTONE, the Korean Pathfinder to SpaceX, and to the ISS, Moon, and Mars, here’s a summary of major space exploration projects last year.

Looking forward to 2023 and beyond!

What does a dust devil on Mars sound like?

December 21, 2022
MThomas

It was “definitely luck” that the dust devil appeared when it did, said the study’s lead author, who estimates there was just a 1-in-200 chance of capturing the audio.

https://www.nbcnews.com/science/science-news/mars-rover-captures-first-sound-dust-devil-red-planet-rcna61642

Perseverance has been on Mars for almost two years now, and already recorded wind on Mars for the first time in February 2021.

This dust devil was recorded in late September 2021 (wonder why only now it’s being revealed?). The dust devil was “average size,” which is described as about 400 feet / 122 meters tall and 80 feet / 24 meters wide, traveling at 16 feet / 5 meters per second (≈ 11 mph / 18 mph).

UPDATE. NBC incorrectly reported in the above linked article that the dust devil was recorded by Perseverance. It was actually recorded by InSight, which has just fallen silent after four years of operation. Sigh. I should get science news directly from the source and not from unreliable “news” sites.

Click on the link below to hear the dust devil

https://jirafeau.isae-supaero.fr/f.php?h=2JWSkdJR&p=1

There are a lot of dust devils on Mars. A whole lot. Any settlement would have to be extremely prepared to deal with dust all the time, everywhere. If it ever got into equipment that regulated, say, breathable air inside habitats…

From nothing to Mars in 6 years

December 20, 2022
MThomas

In 2020, the UAE’s space agency launched its first Mars mission, less than a decade after it was created. How did they manage it?

https://www.bbc.com/future/article/20221206-how-the-uae-got-a-spacecraft-to-mars-on-the-first-try

This is a great story about how true international cooperation rather than competition can result in scientific progress.

Thanks to their efforts, despite nearly being derailed thanks to the pandemic, we will soon have a complete picture of an entire year of Mars weather.

Not bad for a country whose space agency is so small “you could probably lose it in the car park of Nasa’s giant Johnson Space Centre in Houston.”

(Of course, the project’s findings may mean I have to rewrite some of my novel in progress, but why not? All in the name of science fiction…)

ispace is not “Japan” but “Japanese”

December 16, 2022
MThomas

Mission success would also be a milestone in space cooperation between Japan and the United States…

https://www.yahoo.com/news/japans-ispace-readies-delayed-launch-220204283.html

OK, wait…

A Japanese start-up (I.e., a small private company)…

using a SpaceX rocket (I.e., a private company owned by the world’s wealthiest pri…er, person)…

sends up a small craft made in Germany… 🇩🇪

along with the Rashid rover (made by the UAE)…

and “a two-wheeled, baseball-sized device from Japan’s JAXA space agency”…

and somehow this is cooperation between the US and Japan versus China and Russia?

I’m not seeing it. The project may have used a NASA launchpad, but the people are charge (and the ones paying for it) are not part of any national government.

And I have a feeling this is the wave of the future. More and more private companies will get involved in space projects as they realize that they can thus ignore politics and aim at profits.

I, for one, welcome our future corporate overlords…

US to report major fusion breakthrough

December 12, 2022
MThomas

The Financial Times reported Sunday that scientists in the California-based Lawrence Livermore National Laboratory (LLNL) had achieved a “net energy gain” from an experimental fusion reactor.

https://www.ndtv.com/world-news/us-to-announce-major-scientific-breakthrough-amid-nuclear-fusion-reports-3598437/amp/1

This is being spread across various websites. FT and Washington Post wrote the most details, but both are behind paywalls (boo) so I cited NDTV instead.

If…a BIG if…this report is true, it would still take a decade or more to commercialize fusion to the point where it would make even a dent in climate change.

But it would be a big first step.

A BIG if.

(FWIW, European scientists claimed this back in February …and in June… and again in September, and then it all fizzled out. So I’m not holding my breath on yet another politically charged, puff out our nationalist chest claim until I see scientific evidence that the reaction can be sustained and repeated elsewhere.)

Can you say “billlyons and billyons of dollars”?

Why do all the planets orbit the sun in the same direction?

December 11, 2022
MThomas

Note: not to scale (duh). Thanks, Getty. Uh, is this really the best way to show the solar system? (There…are…NINE..planets!)

Think of pizza dough flattening into an enlarging disk as it’s tossed. Because the cloud had an initial rotation, this same direction of spin has persisted…

https://www.popularmechanics.com/space/solar-system/a39729213/why-do-all-the-planets-orbit-in-the-same-direction/

So basically the answer is simply that that’s the way they all started out.

Some moons, however, do have retrograde orbits. I.e., they orbit in the opposite direction around their respective planets. Some small asteroids and comets also have retrograde orbits due to their small mass being easily affected by larger cosmic objects.

But I bet now you’re all thinking of pizza… 🍕

Neuroscience and the ethics of mind control

December 5, 2022
MThomas

“Embedding a similar type of computer in a soldier’s brain could suppress their fear and anxiety, allowing them to carry out combat missions more efficiently.”

https://theconversation.com/amp/brain-computer-interfaces-could-allow-soldiers-to-control-weapons-with-their-thoughts-and-turn-off-their-fear-but-the-ethics-of-neurotechnology-lags-behind-the-science-194017

Sounds like science fiction, but it’s pretty close to reality. BCI (brain computer interface) is being tested in patients who lack muscle control but imagine if this tech gets weaponized (and what hasn’t been, eventually).

But what if BCI were used to suppress emotions in a healthy brain? Or used to implant thoughts? Or worse?

“…if a BCI tampers with how the world seems to a user, they might not be able to distinguish their own thoughts or emotions from altered versions of themselves…”

(same website as above…note that the PC version of WordPress does not do “quotations” correctly any more…)

PKD fans will instantly recognize this.

Androids don’t just dream of electric sheep. 🐑

(Fans of Ghost in the Shell and more importantly its movie sequel Innocence should also recognize the potential hacking danger…imagine if the government could control our emotions, thoughts, and memories…)

Why Japan and JAXA are definitely NOT the future of space exploration

November 26, 2022
MThomas

Falsified space research? No problem. The “apology bow” (sha zai, 謝罪) makes it all better.

There is a reason why Japan’s newest “micro” satellite spectacularly failed to do, well, anything.

The Japan version of NASA (Japan Aerospace Exploration Agency, called “JAXA” for some reason rather than “JAEA” — maybe the founder was a fan of X-Japan?) is riddled with incompetency and sycophancy.

Much like the rest of Japan’s government, one of the most corrupt of the world’s industrialized countries thanks to its strict “senpai-kohai” hierarchy where those at the top do no work and those at the bottom have no choice but to do what those at the top say – even if it’s illegal or immoral.

Continue Reading

Volcanos, Venus, and Earth 🌋 Hellscape unveiled

November 25, 2022
MThomas

A new study shows that massive volcanic eruptions over an extended period of time may be responsible for changing the planet into what it is today. If there was simple life on ancient Venus, volcanism was its doom. The study also shows how powerful volcanic activity has played a role in shaping Earth’s habitability and how Earth only narrowly avoided the same fate as Venus.

https://www.universetoday.com/158696/volcanoes-are-the-worst-theyve-caused-extinctions-on-earth-and-probably-killed-venus/#more-158696

Venus is hot enough to melt lead, which is why no spaceship has ever survived to land on the surface.

And, no, there is nothing alive floating around in its toxic atmosphere.

But this is a neat article. Three future missions are planned for Venus (two by NASA – VERITAS and DAVINCI – and one by ESA – EnVision, which sounds more like a song and dance competition than a scientific probe).

Venus or bust!

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