M Thomas Apple Author Page

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

JUICE it ESA!

April 14, 2023
MThomas

Led by the European Space Agency (ESA), the mission will orbit the largest planet in the solar system and explore its icy moons, which scientists think could support living organisms.

JUICE will explore three possible ocean-bearing moons – Europa, Ganymede and Callisto. Under their icy surfaces are thought to be huge oceans of water – a crucial ingredient for life as we know it.

https://www.aljazeera.com/news/2023/4/13/explaining-juice-mission-to-jupiter-and-its-moons

The “Jupiter Icy Moons Explorer” is the first time an ESA-headed project will visit another moon.

If it launches successfully, of course.

Lift off in less than seven hours from French Guiana!

Great job by Alzajeera, although “Earth is about 4.1 times the size of Europa and is believed to have a young and active surface that may vent water vapour to space via plumes and geysers.” is a bit misleading (Europa, not Earth, is believed to have…)

Copy editor!

🤞 🚀 🇬🇫

UPDATE

The launch was successful, and the 90 m2 solar array also deployed successfully.

Now we just have to sit and wait until 2031!

Shooting star over the English Channel

February 15, 2023
MThomas

Courtesy of @dlxinorbit – via @Marco_Langbroek

The agency earlier said the object was expected to “safely strike” the earth’s atmosphere near to the French city of Rouen.

https://www.bbc.com/news/uk-64621721

“Near to”? OK.

Anyway, “SAR2667” provided some cross-cultural entertainment for people living in England, France, Belgium, and the Netherlands. Lots of photos and videos online.

Interesting note from ESA: they were able to detect it and notify everyone exactly where and when it would disintegrate.

Since there are more than 30,000 of these things that orbit the Sun relatively close to Earth’s orbit, it’s a good thing we’re getting better at detecting them. Maybe we’d better up the ante on deflecting them

“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! ☄️

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!

Trace Gas Orbiter finds traces of hydrogen underground in the Valles Marineris

December 16, 2021
MThomas

A.k.a., the “Great Canyon of Mars”

The original article title?

“Astronomers Detect Secret Water Reserves in The Largest Canyon in The Solar System”

Science isn’t quite as catchy. The hydrogen may indicate water in the form of permafrost 3 feet and more under the surface.

The high-hydrogen region is about the size of the Netherlands, and overlaps with Candor Chasma, one of the largest canyons in the Valles Marineris system.

Looks like there may be some competition for who gets to land near here first…

https://www.sciencealert.com/hidden-water-has-been-found-in-the-soil-of-mars-grand-canyon

Destination: Red Planet

June 27, 2021
MThomas

Like other nations, China “regards Mars exploration as the preferred destination for deep space exploration,” Wang said.

https://abcnews.go.com/amp/Technology/china-unveils-ambitious-roadmap-human-mars-exploration/

China’s plan calls for setting up a permanently occupied base and a fleet of interplanetary craft. Probably it’s a good idea to first see whether it can meet its goal of landing people on Mars in 2033.

Of course, China is “willing to join hands with our counterparts and partners all over the world,” but it’s unlikely NASA, JAXA, ESA, and the UAE and other countries not named Russia will “cooperate.”

The next space race is here. Just wait until multinats actually decide asteroid mining is worth the risk and expense.

Sorry, Venus is just a lot of gas

February 4, 2021
MThomas

There’s a reason I didn’t post a while ago about the supposed “there’s life in the clouds of Venus” finding.

It was just a big load of gas.

Sorry, folks. Venus is a big rotten egg. 🥚

https://www.nbcnews.com/science/space/signs-life-venus-might-just-be-ordinary-sulfur-gas-n1256739

Whatever happened to the “spaceplane”?

January 27, 2021
MThomas

NASA ended the US’s interest in spaceplanes when it scrapped the shuttle fleet a decade ago.

But other space agencies and private companies in other countries are very much in the game. ESA, India, even the UK.

And, of course…

Whichever future the spaceplane does have, it will involve China. “We know very little about the launch [of China’s experimental spaceplane],” says Deville. “But it shows that China is serious about developing its spaceplane concepts.”

https://www.bbc.com/future/article/20210121-spaceplanes-the-return-of-the-reuseable-spacecraft

Drill, rocket launch, catch, ferry, repeat?

August 2, 2020
MThomas

fullsizeoutput_76f4

The Airbus spacecraft will have to manoeuvre itself into a position to capture these samples that will be packaged inside a football-sized container.

After ingesting this container, the satellite must then prepare it for return to Earth.

This means not only shipping it across hundred of millions of km of space, but also putting the football inside a re-entry capsule that can be dropped into Earth’s atmosphere to land in an American desert.

This would be, indeed, a feat of engineering as well as a first in interplanetary exploration.

But I wouldn’t go so far as to call it an “interplanetary cargo ship.” Unless the intention is to maintain it as a permanent link between research locations (i.e., some kind of permanent orbitor stationed above the Jezero Crater) and research facilities on Earth (or the Moon, or the International Space Station).

Political will is needed in addition to the enormous funding. Semi-privatization, anyone?

https://www.bbc.com/news/science-environment-53575353

 

 

Mars GLOWS green — but brighter at day than at night

June 19, 2020
MThomas

mars-green-glow-exlarge-169

By studying Mars’ green glow, the researchers can understand the structure of this layer in the planet’s atmosphere, better understand its altitude range and even observe any changes in reaction to the sun.

First time to see a “green glow” around another planet. In the case of Earth, it’s mostly caused by oxygen, but Mars’ glow is primarily CO2.

So there really ARE “Green Martians.” Just don’t turn and run!

https://edition.cnn.com/2020/06/16/world/mars-green-glow-esa-scn-trnd/index.html

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