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A comment on Making Humans a Multiplanetary Species [video]. Parent comment

Re:Making Humans a Multiplanetary Species [video] by AndrewKemendo on Tuesday September 27, 2016 @04:15PM (#12592737)
No it doesn't. Mars today is likely less habitable than post-asteroid earth. Also, Asteroids can hit Mars with the same likelihood - but with less protection from an existing dense atmosphere.

[1] https://www.technologyreview.com/s/508906/mars-astronauts-li...

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Re:Making Humans a Multiplanetary Species [video] by elihu on Tuesday September 27, 2016 @08:02PM (#12594368)
The probability of a civilization-ending asteroid impact on Earth and Mars at approximately the same time is a lot less than the probability of a civilization-ending asteroid impact just on Earth.
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