M Thomas Apple Author Page

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

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!

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… 🍕

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!

Astronomers found a black hole in our cosmic backyard!

November 9, 2022
MThomas

Only 1600 light years away!

And it’s a binary system. Very odd.

It’s also “dormant.” Even stranger.

Ten times the size of our Sun, as far away from its companion star as the Earth is from the Sun.

Announced just in time for Halloween…

https://www.nytimes.com/2022/11/05/science/astronomy-black-hole.html

DART did it! 🎯

October 12, 2022
MThomas

“For the first time ever, humanity has changed the orbit of a planetary body,” said NASA planetary science division director Lori Glaze.

https://www.sciencenews.org/article/dart-mission-deflected-asteroid-for-planetary-defense

A change of 32 minutes in orbit — but only 4% of the total orbital period. To deflect an asteroid away from Earth, it’d better be done several years in advance. 🌏

Still, it can be done. An amazing first.

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…

Another month, another missed Bringer of Light post…

July 18, 2022
MThomas

Yeah. So I missed another installment in my series.

Shoot.

Things are just ridiculously spiraling out of control at work. I hope to start posting more regularly again in a week or so.

In the meantime, check out more images from the Webb space telescope compared to Hubble. They’re pretty awe-inspiring.

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

Doesn’t look too terribly attractive…

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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