M Thomas Apple Author Page

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

Water molecules detected on the surface of an asteroid in space for the first time

March 13, 2024
MThomas

Water molecules have been detected in asteroid samples returned to Earth, but this marks the first time that the molecules have been discovered on the surface of an asteroid in space. The team studied four silicate-rich asteroids using data from the now-retired Stratospheric Observatory for Infrared Astronomy(SOFIA). 

https://www.popsci.com/science/water-asteroid-space/

The asteroids in question are Iris (124 miles / 200 km in diameter) and Massalia (84 miles / 135 km). Both are in the asteroid belt between Mars and Jupiter. Iris is about the size of the US state of Maryland, while Massalia is roughly the size of Connecticut.

Note that the same observatory also found water on the Moon, about a “12-ounce bottle” worth. Not nearly enough for a settlement, but where there’s surface water (albeit trapped in soil on the surface), there’s likely to be more underneath.

(See also https://www.swri.org/press-release/swri-scientists-identify-water-molecules-asteroids-the-first-time — the PopSci linked article above essentially plagiarised almost its entire text. Bad scientist, bad.)

Original article here: Arrendono et al. (2024) Detection of molecular H20 on nominally anhydrous asteroids. Planet. Sci. J. 5. 37 doi 10.3847/PSJ/ad18b8 – good luck trying to read it!

AGI by 2027? 2028? 2030?

March 11, 2024
MThomas

“It should be able to make a smarter AGI, then an even smarter AGI, then an intelligence explosion,” he added, presumably referring to the singularity.

https://futurism.com/artificial-superintelligence-agi-2027-goertzel?fbclid=IwAR2v9500C6hNEfhD4RehqCa04Dltys7KuVkyuepcgmiqoNhSBseMtpHojJs

Seriously. Am I the only one who thinks this is, like, a really, really, REALLY bad idea?

Introducing the Bringer of Light!

March 8, 2024
MThomas

Hello, everyone, and thank you for reading!

This is a short (~8 minute) video I made to introduce the story Bringer of Light.

I’ll be posting a couple more videos in the near future about the characters, location, and science behind the story.

Check it out, and share freely!

Intuitive touches down…is a bizarre sentence…

February 23, 2024
MThomas

A robotic spacecraft made history Thursday becoming the first privately built craft to touch down on the lunar surface, as well as the first American vehicle to accomplish the feat in more than 50 years.

https://www.nbcnews.com/science/space/moon-landing-odysseus-touches-down-lunar-surface-n1308924

Congratulations! 🎉

You now have one week before shutting down permanently.

Jeez. Really? That’s a very expensive week at $118,000,000. Glad the taxpayers approve (?)

Well, *that* was interesting!

February 1, 2024
MThomas

OK, so my post about a big ole spider got the most likes of any post in ten years of blogging about science.

I have so not got the zeitgeist of the 2024 blogosphere lol – anyway, thanks, all, for the “likes”! Although one person used AI to write a very meaningless comment about arachnophobia. What’s the point, man?

By the way, back to science and space stuff. I forgot to post about the Europa Clipper project back in October.

So here you go. (It’s too late to add a message, but the project obviously is going to take some time arriving there, and you can supposedly hear US Poet Laureate Ada Limón read her poem online, although I’ve had trouble with the audio lately:

“Arching under the night sky inky
with black expansiveness, we point
to the planets we know, we

pin quick wishes on stars. From earth,
we read the sky as if it is an unerring book 
of the universe, expert and evident.

Still, there are mysteries below our sky:
the whale song, the songbird singing
its call in the bough of a wind-shaken tree.

We are creatures of constant awe,
curious at beauty, at leaf and blossom, 
at grief and pleasure, sun and shadow.

And it is not darkness that unites us, 
not the cold distance of space, but
the offering of water, each drop of rain,

each rivulet, each pulse, each vein.
O second moon, we, too, are made 
of water, of vast and beckoning seas.

We, too, are made of wonders, of great
and ordinary loves, of small invisible worlds, 
of a need to call out through the dark.”

SLIM pickings! Back to work…

January 31, 2024
MThomas

The craft is at a very awkward angle. A picture, captured by the small baseball-sized robot called Sora-Q – which was ejected from Slim moments before touchdown – showed the lander face-down on the lunar surface. 

That left its solar panels facing away from the sunlight and unable to generate power. The decision was taken to put the lander into sleep mode – and conserve what power remained – less than three hours after it landed. 

That tactic appears to have worked. A change in the direction of the sunlight has now “awoken” the craft.

https://www.bbc.com/news/science-environment-68131105

As previously reported, JAXA did achieve its goal of a “precision landing” — as some put it, a “pinpoint” touchdown within 100 meters of the intended target — within 55 meters, although if all had gone as planned, it would have been within 10 meters.

That’s far, far closer than previous Moon landings.

Too bad SLIM is essentially standing on its nose. But at least this is a beginning. Japan has now become the fifth country (US, USSR, China, India) to successfully “soft land” an object on the Moon.

And the robots it brought with it are pretty amazing. And tiny.

NASA — send in the cats!

December 20, 2023
MThomas

Taters the cat chases a laser pointer in a video sent to Earth from Psyche

Aiming the laser at the spacecraft so the transceiver knows where to point back is the most difficult part, Wright said. And because Earth and the spacecraft are both moving, the lasers must point to where the destination will be in a few minutes.
“The beam’s so narrow, it can’t just point to Earth. It needs to know exactly where on Earth,” Wright said. “Trying to hit a dime from a mile away while you’re moving at 17,000 miles an hour — that’s the challenge.”

https://www.washingtonpost.com/technology/2023/12/19/nasa-laser-video-streaming-space-mars-cat/

So NASA has been working on this idea for a while now. The invisible laser beam that carried this video file came from the Psyche probe, on its way to the asteroid belt between Mars and Jupiter.

Psyche is 19 million miles away right now. The laser beam took 108 seconds to reach Earth.

Mars and Earth are on average 140 million miles apart and can be up to 250 million miles apart depending on the timing of their respective orbits.

I don’t think lasers are the answer here. A good start, maybe, but you can do the math. Having to wait between 10 to 20 minutes, or more, for a one-way transmission (double that for an exchange of messages) would not be ideal for a human settlement in an emergency.

Star Trek style instant interstellar communication is still just scifi. Unless there’s still something out there we haven’t found yet, even quantum communication will take time…

But at least NASA has finally realized that non-science people like cat videos.

🐈 🐈‍⬛

Webb reveals rocky planets can form in extreme environments

December 3, 2023
MThomas

This is an artist’s impression of a young star surrounded by a protoplanetary disc in which planets are forming. An international team of astronomers have used the NASA/ESA/CSA James Webb Space Telescope to provide the first observation of water and other molecules in the inner, rocky-planet-forming regions of a disc in one of the most extreme environments in our galaxy. These results suggest that the conditions for rocky-planet  formation, typically found in the discs of low-mass star-forming regions, can also occur in massive-star-forming regions and possibly a broader range of environments.

Because of its location near several massive stars in NGC6357, scientists expect XUE 1 to have been constantly exposed to a high ultraviolet radiation field throughout its life. However, in this extreme environment the team still detected a range of molecules that are the building blocks of rocky planets.

https://www.esa.int/Science_Exploration/Space_Science/Webb/Webb_study_reveals_rocky_planets_can_form_in_extreme_environments

In essence, this expands the possibility of finding many more rocky planets than were previous thought to be exist.

Lots of “gas giants” and a few “super Earths” have been found so far. But Webb is just getting started…

Mars missions are paused immediately…as of 11/11?

November 24, 2023
MThomas

No more selfies for now, Curiosity…

“NASA will hold off sending commands to its Mars fleet for two weeks, from Nov. 11 to 25, while Earth and the Red Planet are on opposite sides of the sun. Called Mars solar conjunction, this phenomenon happens every two years,” NASA said in a statement

https://www.livescience.com/space/mars/nasa-is-pausing-all-mars-missions-effective-immediately-heres-why

It’s funny that Live Science just announced this three days…given that the time period in which Mars is directly behind the Sun opposite the Earth only lasts from November 11th through November 25th.

Which is, ah, tomorrow.

Thanks for the heads up, guys. Honestly…

I would meet…

November 23, 2023
MThomas

If you could meet a historical figure, who would it be and why?

If I could meet an historical figure, I’d like to meet Plato.

Of course, I wouldn’t be able to understand anything he would say, since it’s all Greek to me.

So maybe it’d be better to meet Nikola Tesla.

Preferably before he went a little cuckoo and ended his days feeding pigeons in Central Park.

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