exploration | M Thomas Apple Author Page

Gas…stations…in…space…! ⛽️

November 13, 2024
MThomas

Jas Tiruvuru, business development manager for Orbit Fab in the UK and Europe, said the company was aiming to successfully demonstrate the technology in space by 2027.

“This will essentially be the first ever satellite to satellite refuelling demonstration funded here in the UK,” she said.

“Once we’ve proven that we can refuel to two spacecrafts we’ll be able to unlock a huge market potential.”

https://www.bbc.com/news/articles/c5y3wzlvnn2o

You know, maybe it’s just me, but I think 2027 may be a little optimistic. Just like the figure given in the article for how much the satellite sector will be worth in the future.

Aren’t there too many satellites already?

I’d like to see how this would help us colonize the solar system.

Actually, I’d like to see how they plan to get fuel up there in the first place.

Maybe my novel’s idea of using certain moons of Jupiter or Saturn as giant space gas pumps might help? 🪐

Interstellar! If only…

September 26, 2024
MThomas

According to Thorne, who served as a consultant on the science of Interstellar, quantum mechanics could hypothetically explain a way to time travel via wormhole. So far, it’s a thought experiment that leads to the conclusion that you’d lose information along the way—not very practical.

First off, I’m incredibly annoyed at the way WordPress has screwed up the “quotation” function. It seems they are more focused on encouraging bloggers to use AI to write.

Uh. I don’t need AI. I blog. The end. WTH is the point of using AI to write my thoughts? It’s already being trained to USE my blog in the first place! Idiots.

OK. Second, the Popular Mechanics article I’m linking to is entitled “Interstellar travel is possible if we break into a higher dimension, scientists say.”

Only, that is NOT what scientists say. It’s still a thought experiment!

China just returned rocks from the Far Side of the Moon

June 26, 2024
MThomas

But China has also offered to share at least some of its new moon samples with American researchers, and NASA is allowing the U.S. scientists to submit proposals.

https://www.npr.org/2024/06/24/nx-s1-5015208/china-return-first-ever-sample-return-moon-far-side

This is a welcome change of heart. International politics need not prevent international space exploration.

On the other hand…

China is not planning a mere short-term, flags-and-footprints presence on the Moon. Their ambition is more like Nasa’s Artemis than it is Apollo. China plans to launch two separate missions to the south pole of the Moon around 2026 and 2028 – including testing using lunar soil to 3D print bricks – as precursors to a lunar base.

https://www.bbc.com/future/article/20240510-change-6-is-just-the-tip-of-chinas-space-ambitions

A little competition might be just what’s needed to get humanity into space.

But a little competition might also go a bit too far…

“May you live in interesting times…”

Nuclear power on the Moon. Gee, no problem…

May 13, 2024
MThomas

The South Pole, where power plants are likely to be constructed (without human help…)

“The truth is that nuclear is the only option to power a moonbase,” says Simon Middleburgh from the Nuclear Futures Institute at Bangor University in Wales.

https://www.bbc.com/future/article/20240417-the-nuclear-reactors-that-could-power-moon-bases

So far there are two major consortiums that have plans for moon bases:

The Artemis Accords, with 36 countries (the US, Japan, South Korea, UAE, India, etc.)

The countries that don’t like the US, the UK, and Canada (China, Russia, Belarus, Venezuela, Pakistan, South Africa, Egypt, Ajerbaijan)

OK, maybe a bit of an exaggeration, granted.

But there is no doubting the political ramifications of two competing groups of astronauts (cosmonauts, taikonauts) on the Moon.

And just wait until they get to Mars.

Imagine what might happen. (I did!)

“May you live in interesting times…”

Venus used to have as much water as Earth. What happened?

May 7, 2024
MThomas

Over time, that water has nearly all been lost. Figuring out how, when and why Venus lost its water helps planetary scientists like me understand what makes a planet habitable — or what can make a habitable planet transform into an uninhabitable world.
https://theconversation.com/venus-is-losing-water-faster-than-previously-thought-heres-what-that-could-mean-for-the-early-planets-habitability-229342

The process in which Venus lost most of its water is called “hydrodynamic escape.” When Venus got too hot, the hydrogen in its atmosphere left. (The linked article explains this using a metaphor of having too many blankets on your bed.)

However, Venus is still losing hydrogen, even though there is too little of it for hydrodynamic escape to work. So, logically, there must be another process at work: “HCO⁺ dissociative recombination,” in which individually positively charged atoms of hydrogen, carbon, and oxygen in the atmosphere react with negatively charged electrons. The process was first examined on Mars, and based on a reexamination of results from previous missions (Pioneer Venus 1 and Pioneer Venus 2), the same research group thinks it’s time to try it on Venus…perhaps a first step to seeing whether Venus had life at some point.

Can you say “Catch-22” in space?

April 30, 2024
MThomas

Japanese space company Astroscale Holdings Inc has unveiled what it calls the world’s first publicly released close-up image taken of space debris, hailing it as progress toward understanding the challenges posed by trash orbiting Earth.
https://japantoday.com/category/tech/update1-japan-startup-reveals-world%27s-first-close-up-space-debris-image?

Hmm.🤔 what will happen to the rocket and the satellite that took this picture?

WASP-76b is a hellish planet – but with “glory”

April 11, 2024
MThomas

There are many words that could be used to describe WASP-76b — hellish, scorching, turbulent, chaotic, and even violent. This is a planet outside the solar system that sits so close to its star it gets hot enough to vaporize lead. So, as you can imagine, until now, “glorious” wasn’t one of those words.
https://www.space.com/hellish-exoplanet-rainbow-glory-effect-cheops

This planet (located in the constellation Pisces) seems to have a rainbow effect of concentric rings…despite being so hot that iron falls from the sky.

Get ready for the 2024 totality, North Americans!

April 8, 2024
MThomas

Researchers will fly rockets into the path of the eclipse, stand in zoos watching animals, send radio signals across the globe, and peer into space with massive cameras.

And you don’t need to be a scientist to take part.
https://www.bbc.com/news/science-environment-68742516

If you’re lucky enough to have no clouds or rain, that is.

Things the eclipse affects:

Radio waves
Animal behavior
The birds and the bees (seriously; read about what tortoises did last time)

Things scientists can view thanks to an eclipse:

The solar wind (plasma on the surface of the Sun)
Coronal mass ejections (which interfere with satellites)
Dust rings around the Sun and possibly even new asteroids

The East Coast of North America, where most of my relatives live, is currently 13 hours behind me in Japan. So the event will be long over by the time I wake up.

Hope to see video of it on the morning news show tomorrow!

Bringer of Light: Locations video

March 15, 2024
MThomas

This time I figured out how to import the slides directly into mmHmm, and I managed to update my MacOS to Sonoma, which allowed me to use my USB mic (yay). But I also called Ceres a “moon” at some point (it’s not a Moon but a dwarf planet in the asteroid belt near Mars). Oops. Not enough time to edit that bit out or record it again, so just word to the wise! Always fact-check videos, folks. Enjoy!

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!

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