Alternative Luna & Mars
Oct. 8th, 2019 02:45 pm![[personal profile]](https://www.dreamwidth.org/img/silk/identity/user.png){kind=small}
kengrGot a variant on an idea I had in the past.
Both Luna and Mars are capable of retaining an atmosphere and hydrosphere for significant periods of time if they were somehow given them.
For Luna it's hundreds to thousands of years. For Mars it'd be *much* long, both because of the higher gravity and being farther from the sun.
Lot's of authors have written about terraforming Mars. I can think of only one who tried it with Luna.
But my new thought was what if Someone (aliens?) did it in the distant past and set up some maintenance methods.
So both Mars and Luna are habitable and have been stocked with terran life forms (including humans)
This wouldn't be obvious to folks on earth until at 1600s or later. Without telescopes, you might notice some clouds and the like on Luna, but that'd be about it.
Mars would likely take until the 1800s or so.
I'm assuming that Luna doesn't have tech beyond Medieval if that. Mars might be more advanced. But no radio at least.
Given all this, History would be mostly the same until recently.
I'm wondering what things you folks think would change in that universe. The big cvhanges would be in the last 100-150 years.
I'm also interested in folks take on how civilizations might develop on Luna and Mars.
ps. I have vague memories of some site that would display maps of Mars and Luna with oceans of various depths. If anybody knows what they are, I'd be grateful for the info.
Both Luna and Mars are capable of retaining an atmosphere and hydrosphere for significant periods of time if they were somehow given them.
For Luna it's hundreds to thousands of years. For Mars it'd be *much* long, both because of the higher gravity and being farther from the sun.
Lot's of authors have written about terraforming Mars. I can think of only one who tried it with Luna.
But my new thought was what if Someone (aliens?) did it in the distant past and set up some maintenance methods.
So both Mars and Luna are habitable and have been stocked with terran life forms (including humans)
This wouldn't be obvious to folks on earth until at 1600s or later. Without telescopes, you might notice some clouds and the like on Luna, but that'd be about it.
Mars would likely take until the 1800s or so.
I'm assuming that Luna doesn't have tech beyond Medieval if that. Mars might be more advanced. But no radio at least.
Given all this, History would be mostly the same until recently.
I'm wondering what things you folks think would change in that universe. The big cvhanges would be in the last 100-150 years.
I'm also interested in folks take on how civilizations might develop on Luna and Mars.
ps. I have vague memories of some site that would display maps of Mars and Luna with oceans of various depths. If anybody knows what they are, I'd be grateful for the info.
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Date: 2019-10-08 09:50 pm (UTC)(no subject)
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From:no subject
Date: 2019-10-09 12:52 pm (UTC)Historically, many thought the large lava plains on the Moon were actually oceans. Which is where we get such names as the Sea of Tranquility.
Excerpt from a short story I'm trying to sell:
"Humans believing there's some alien structure on Mars has a long history," said Barstow, hoping to change the subject. "Lowell seeing canals. The face and the pyramids. The spoon and all those other odd rock formations the landers found. All optical illusions or coincidence. We were cynical about the existence of artifacts on Mars long before we actually got someone here. Then came the Fifth Manned Mars Mission. Which had a neutrino detector on board. When it spotted a large void where no neutrinos came through that was dismissed by many as a problem with the instrument. Only it wasn't."
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