M Thomas Apple Author Page

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

“Rock. Rock. Rock. Rock. Rock. Rock. METEORITE!”

March 7, 2023
MThomas

The mysterious object’s lovely silver metallic hue stands out like a sore thumb in the surrounding, rust-colored landscape, a sulfate-bearing region of the Red Planet’s Mount Sharp.

https://futurism.com/the-byte/mars-rover-metallic-meteorite?fbclid=IwAR03ztaeMMhJWITitMIwXRsF_pfsE7_p2LUS-hGinBAHzrnW0LfZ5gPxU1o

Yes, they’re actually calling the meteorite fragment “Cacao.” Sigh.

Too bad Curiosity can’t take any samples. Perseverance can, but it’s too far away.

Curiosity has stumbled across several other such rocks previously, like “the Beast” and “Lebanon.” Sadly, none can be dated.

But the fact that there are so many of these impacted on the surface of Mars shows additional risks that any human mission might face…

Just another week on the ISS…

February 26, 2023
MThomas

Until the new Soyuz pulls up, emergency plans call for Rubio to switch to a SpaceX crew capsule that’s docked at the space station. Prokopyev and Petelin remain assigned to their damaged Soyuz in the unlikely need for a fast getaway. Having one less person on board would keep the temperature down to a hopefully manageable level, Russian engineers concluded.

https://www.nbcnews.com/science/space/russia-launches-rescue-ship-space-station-leaks-rcna72161

Russian space agency Roscosmos concluded that the leak in the docked Soyuz capsule was from a micrometeorite impact.

They also reversed the previous decision last year to abandon the ISS. Now Russia will still send cosmonauts through 2028.

A positive step in a brutal political climate. International space projects should include more, not fewer, countries. Space is for everyone.

Bringer of Light, Chapter 39: Transit — Lost

February 25, 2023
MThomas

Unaware of events on Mars, Gennaji was hurrying to help Sergey, his old captain, on Luna. But the unexpected happened, and now the Sagittarius is minus one crew member. And an unidentified object approaches..

“…Be happy. Be free.”

The transmission ended. Gennaji felt liquid on his cheek.

Not tears. A blood bubble had alighted. He brushed it off angrily.

“Ory, what’s the source of this message?”

“Ch-checking.”

He grabbed the navigator’s seat and strapped in. Another splotch on the panel. He wiped it off with his forearm and turned on the aft video feed.

The lifepod had slipped behind and below them. Who was in it? Surely not Sergey. The old man had always said he’d rather die than—

Gennaji snapped his head up.

No.

He unstrapped and bounced to another console. Fingers dancing, trying to remember. He slapped the console in frustration. Lena had always been better than him at controlling the drones and the arm for rock retrieval. He had relied on Andrej too much. Relied too much on others. If only there were an easier way to learn how to do this. He shouldn’t have to do menial work. He was the captain! He should give the orders and the others should follow! He…

The arm extended at last. He sighed. Was it too late?

Continue Reading

Titan and its subsurface ocean has tides

February 24, 2023
MThomas

It is this subsurface ocean, or rather its interaction with the ice shell that covers it, that a team of researchers led by the Catholic University of Louvain (UCLouvain) in Belgium hope to better understand. More specifically, they wish to understand how the ocean’s depth and the pressure exerted by the icy shell on the underground water body influence the formation of tidal motions and currents inside of it. 

https://www.space.com/saturn-moon-titan-ocean-tides-icy-crust-study

When I first heard of “Attack on Titan,” I was disappointed to learn that it didn’t take place actually on Titan. (The title in English is a mistranslation. It should be “Attack of the Titans” or “The Titans Attack” or even “Attacking Titans,” depending.) In any case, it’s a disgusting manga/anime with nothing to do with the icy moon of Saturn. Except for the name. And even that’s a misuse (they should have used “giant” as the storyline is very loosely based on Ymir and the frost giants of Scandinavian myth).

Anyway. It’s a fascinating moon the size of the planet Mercury with a liquid ocean and (mostly) nitrogen atmosphere, making it a candidate for extraterrestrial life. Here’s a cool view of it: https://solarsystem.nasa.gov/moons/saturn-moons/titan/overview/

Look! Up in the sky! It’s a bird! It’s an airplane! It’s…

February 4, 2023
MThomas

A Japanese telescope positioned on top of Mauna Kea, a dormant volcano on the Big Island of Hawaii, captured video of an eerie flying spiral in the night sky on Jan. 18.

In the video, a small bright spot appears and slowly gets brighter and starts to dissipate into a spiral before getting small again and disappearing.

https://www.yahoo.com/entertainment/japanese-telescope-captures-image-mysterious-180332172.html

In fact, it was the remains of a discarded Falcon 9 booster from the launch of a SpaceX satellite. And it isn’t the first time this has happened. Japanese TV talked about this, too (since it was a Japanese astronomy, at the Subaru Telescope, that first recorded it).

So, an Identified Flying Object!

Yay, more metallic junk.

(Thanks to Glen Hill for bringing this article to my attention.)

“Green comet” buzzing Earth “Wednesday”

February 1, 2023
MThomas

A comet from the outer solar system is set to buzz Earth on Wednesday and skywatchers have a chance to glimpse the celestial object as it journeys through our cosmic neighborhood for the first time in 50,000 years.

https://www.nbcnews.com/science/space/green-comet-approach-flyby-earth-rcna65202

If by “Wednesday” you mean “Wednesday in North America. There is no “on Wednesday” worldwide, thanks.

Observers in the Northern Hemisphere should look northeast just after the Moon sets and before dawn. You should be able to see it with a good pair of binoculars.

The last time Comet C/2022 E3 (ZTF) made a visit, Homo sapiens still had Neanderthal neighbors, so this is your one and only! ☄️

“Don’t worry,” they said, “the size of a truck,” they said…

January 26, 2023
MThomas

An asteroid is on its way to Earth, but don’t worry – the end is here Not here. The asteroid, named 2023 BU, is about the size of a van and is expected to miss our planet during Thursday’s flyby. However, according to a NASA scientist, it will be “one of the closest approaches of a known near-Earth object ever recorded.”

https://newsbeezer.com/germanyeng/a-truck-sized-asteroid-will-come-extraordinarily-close-to-earth-tomorrow/

This thing is coming closer than even some satellites, but it’s still small enough for most of it to burn up in the atmosphere.

Most of it.

Yikes.

Turn off the lights, and you’ll be seeing stars!

January 25, 2023
MThomas

A new study that analyzes data from more than 50,000 amateur stargazers finds that artificial lighting is making the night sky about 10% brighter each year.

https://www.nbcnews.com/science/space/twinkle-twinkle-fading-stars-hiding-brighter-skies-rcna66692

Each spring in my Current Events and Global Issues class, I have students read about environmental issues.

Pollution is obviously related. But they almost never guess the “seven types of pollution” (yes, I know some people country eight, or ten, or even twelve…it all depends on how you categorize them).

They never consider Light Pollution.

Maybe it’s because most of my students (to the order of 90%) come from medium and large cities. To me, having grown up in a mostly rural area (in elementary school, my town had about 400 residents and in junior and senior high I lived in a “queen village” that had — gasp — an incredible 4,000 residents) — well, being surrounded by darkness was no big deal.

We could see stars from our backyard. Lots of stars. We learned all the major constellations (of the Northern Hemisphere, anyway, since that’s what we could see).

And more importantly we could see lightning bugs (or “fireflies” or “glowworms” or “candle bugs” etc). Decreasing water quality is thought to contribute to their declining numbers, but it’s far more likely that our insistence on lighting up the skies all the time are preventing them from finding a mate (hence the reason they “flicker” at night).

Turn off the lights!

What are you afraid of?

What is this “Cislunar” space?

January 24, 2023
MThomas

Though definitions sometimes differ, cislunar space generally refers to the space between Earth and the moon, including the moon’s surface and orbit. Any nation or entity that aims to establish a presence on the moon, or has ambitions to explore deeper into the solar system, has a vested interest in operating in cislunar space, either with communication and navigation satellites or outposts that serve as way stations between Earth and the moon.

https://www.nbcnews.com/science/space/space-earth-moon-get-little-crowded-rcna64333

There is actually a limited amount of orbital space available between the Earth and the Moon (note: capitalize it, NBC! grrr..).

So, expect more and more competition for satellites — communication, navigation, and way stations.

And of course military and spy stations.

And by the way, only eight nations signed the so-called “Artemis Accords” in 2020. Guess who didn’t?

Buckle up!

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!

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