science | M Thomas Apple Author Page

Spectacular image of Jupiter’s auroras and moons

August 23, 2022
MThomas

Courtesy NASA. Note that the blue, white, green, yellow, and orange colors are artificial, only added to make features revealed by infrared stand out for human eyes. You can see the planet’s rings, aurora, and two “tiny” moons (at left; they’re not really that tiny!).

“We’ve never seen Jupiter like this. It’s all quite incredible,” said planetary astronomer Imke de Pater, of the University of California, Berkeley, who helped lead the observations.

“We hadn’t really expected it to be this good, to be honest,” she added in a statement.
https://www.pbs.org/newshour/science/james-webb-space-telescope-shows-jupiters-auroras-tiny-moons

The above is supposed to be in “quote” format, but WP really messed up this feature when they switched to so-called “block” mode (which I can’t stand).

Anyway, the image is fairly spectacular, from the new James Webb Space Telescope which is positioned 1 million miles away from Earth (i.e., in the second LaGrange point, or L2).

Will NASA call it all off? PSYCHE!

August 18, 2022
MThomas

First of all, stop calling it “the golden asteroid.” That’s confusing people (the headline of the article linked below even uses the phrase “gold mine.” Come on, lazy journalists.)

If 16 Psyche is worth mining, when could such operations proceed? Citigroup thinks that space mining, including from the moon and asteroids, will be a $100 billion-per-year business by 2040. Launch costs will continue to decrease and experience in operating in space will continue to expand until such a business makes economic sense.
https://thehill.com/opinion/technology/3597381-nasa-might-cancel-mission-to-massive-gold-mine-asteroid-heres-why-it-shouldnt/

So is asteroid worth it?

Sure.

Is it horribly expensive right now?

Sure.

So why do it?

Well, how heavy do you think the materials to make buildings and ships in outer space are?

If we’re serious about putting people on the Moon and Mars, then it makes much more sense to set up robotic mining factories and assemble everything in space.

All this needs is a little incentive…like a new space race…

Looking for aliens in all the wrong places?

August 12, 2022
MThomas

Our search for alien life is getting serious. With better telescopes and a growing scientific consensus that we’re probably not alone in the universe, we’re beginning to look farther and wider across the vastness of space for evidence of extraterrestrials.

But it’s possible we’re looking for too few signs in too few places. Having evolved on Earth, surrounded by Earth life, we assume alien life would look and behave like terrestrial life.
https://www.thedailybeast.com/alien-hunters-need-to-start-rethinking-the-definition-of-life?

I agree that we are biased, simply based on the basics of what we understand as (carbon-based) life (i.e., ourselves).

And I agree — in principle — that scientists need to keep an open mind when looking for other life forms on exoplanets.

However, they also need to retain a sense of skepticism.

Attack of the Killer Drones — Non-fiction not fiction?

July 26, 2022
MThomas

These aren’t the drones that deliver your online order. Loaded with cameras, sensors, and explosives, their mission is to drive themselves to a target with an algorithm in the driver’s seat. They destroy themselves along with the target, leaving behind just a pile of electronic detritus.
https://m.dw.com/en/killer-robots-will-they-be-banned/a-62587436

Oh, joy. I can’t wait to see what happens when we program 3D printers to churn them out.

Or just simply make them self-replicating. What could possibly go wrong?

A picture isn’t worth a thousand words…

July 12, 2022
MThomas

…but it is worth USD $10 billion…

PS. Let’s look for the aliens, already…

https://apnews.com/article/james-webb-telescope-first-photos-32c7cad1f6b277f871990d029bedba72

Carl Sagan at the Illinois ACLU: A lost 1987 lecture on civil liberties

July 1, 2022
MThomas

…there has been a serious erosion of the tradition of skeptical inquiry, of vigorous challenging of government leaders, of public exposure of what the government is actually doing, rather than mere pomp and rhetoric. And it is in this area—skeptical scrutiny, public exposure—where the largest strides, in my opinion, are needed.
https://quillette.com/2022/07/01/science-and-civil-liberties-the-lost-lecture-of-carl-sagan/

Thank you, Stephen Pinker and Harvey Silverglate, for transcribing this. And Ann Druyan, for permitting it.

International asteroid day!

June 30, 2022
MThomas

Today is “International Asteroid Day”!

Who knew?

Asteroids hold large amounts of valuable minerals and metals. That is what International Asteroid Day is raising awareness about on 30 June.
https://www.bbc.com/news/av/science-environment-61985813

The University of Tokyo just covered a robot finger with real skin. The jokes write themselves…

June 20, 2022
MThomas

Skin is also just the first step in combining organic matter with machines, and opens the door for incorporating nerves and sensory organs such as olfactory receptors which can detect scents.
https://soranews24.com/2022/06/16/robot-finger-covered-in-living-skin-developed-by-university-of-tokyo/

The original report was published online by the U of Tokyo before it was covered last week by several online sources, including WebMD, the Independent, France 24, and ABC7, but the Sora News is the only one to post Japanese reader comments about, well, what fingers can do. Ahem.

The final quote of the researchers was posted on WebMD as:

“We believe this is a great step toward a new biohybrid robot with the superior functions of living organisms.”
https://www.webmd.com/skin-problems-and-treatments/news/20220616/robot-finger-with-living-skin-points-to-a-new-future

Eek. Maybe might wanna rethink this…

Amino acids found in material brought back by Hayabusa-2

June 6, 2022
MThomas

More than 20 types of amino acids have been detected in samples Japan’s Hayabusa2 space probe brought to Earth from an asteroid in late 2020, a government official said Monday, showing for the first time the organic compounds exist on asteroids in space.
https://english.kyodonews.net/news/2022/06/9a7dbced6c3a-amino-acids-found-in-asteroid-samples-collected-by-hayabusa2-probe.html

This lends support to the hypothesis that life on Earth was brought to it during the Late Heavy Bombardment period – in which meteors brought not just water but the building blocks of life…

Now imagine if someone were to find an asteroid with addition proteins NOT found on Earth… (i.e., my novel’s scientific premise…)

Plants can grow in lunar soil (barely)

May 16, 2022
MThomas

The samples were extremely hydrophobic, and repelled water as if it were the most disgusting thing ever invented. Researchers labored to get the lunar soil to gradually soak up water. They also added a nutrient solution.
https://www.washingtonpost.com/science/2022/05/12/plants-grow-in-lunar-soil/

Turns out that it is possible to grow plants on the Moon…

…although you might want to wear gloves while farming, since the “soil” contains tiny pieces of glass from constant bombardment.

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