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@trunking | 20 November 18 | |
Did comets really fill the Earth with the water mostly contained in our oceans, and how did mammals originate? And why is Earth the only water world (of the planets)? I know that some moons and planetoids might contain water.. |
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@1lostie | 20 November 18 | |
Earths magnetic field protected earths oceans from being lost to space by suns rays mars lost its oceans in this way venus was too hot to retain liquid water. As for the outer moons some are waterworlds but with a thick surface of ice though there are subsurface liquid oceans
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@shadow27 | 20 November 18 | |
Goldilocks.. One was too hot, one was too cold and one was just right. But if you go back a little bit.. Venus, Mars and Earth were all very similar. Then Venus had a runaway greenhouse effect to contend with. Mars had a very shallow ocean, dominating one hemisphere more so than the other. Apparently, it's been found recently that there is still liquid water there, but it's underground.
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@1lostie | 20 November 18 | |
Mars is actually in goldilocks zone but its small size went against it had it been bigger it could have been livable
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@1lostie | 26 November 18 | |
Nasa's insight has landed safely on mars
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@crail | 26 November 18 | |
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@obi_jon | 26 November 18 | |
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@trunking | 28 November 18 | |
@ 1lostie - 20.11.18 - 02:06pm Mars is actually in goldilocks zone but its small size went against it had it been bigger it could have been livable So no way of terraforming it? |
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@trunking | 28 November 18 | |
What if....we got the origin story all wrong??
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@trunking | 28 November 18 | |