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

Mars GLOWS green — but brighter at day than at night

June 19, 2020
MThomas

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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

Earthrise: Fifty years and counting (Don’t count on it)

December 28, 2018
MThomas

“To really think about ourselves as citizens of Earth is something that I think we’re still working toward,” Jacob Haqq-Misra, a research scientist at Blue Marble Space Institute of Science, told Space.com. “[Seeing this image] may be enjoyable and fun and awe-inspiring, and you might think about it later that day, but I don’t think most people have a perception of ‘I’m a citizen of Earth’ when they’re driving to work.”

He’s curious how potential future space developments — establishing a human presence on Mars, or discovering extraterrestrial intelligence, for example — might make that Earthling perspective easier to grasp by creating a group to contrast it against.

That’s us: the forever simian, defining ourselves in contrast to what we aren’t as opposed to what we could be.

So what would happen if some of us became Martians, Venusians, or Jovians? Hmmm…

www.space.com/42842-earthrise-apollo-8-photograph-50-years-later.html

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