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A comment on Elon Musk argues that putting a million people on Mars ensures humanity's future. Parent comment

Re:Elon Musk argues that putting a million people on Mars en... by chc on Tuesday September 30, 2014 @02:20PM (#8390013)
What cataclysm do you envision destroying life on Earth if we have the technology to survive on Mars? Surviving on Mars means that we can survive in freezing temperatures, with deadly levels of radiation, without a breathable atmosphere, without fertile soil, with little to no liquid water, and with no source of power but sunlight that's 60% weaker than on Earth.
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Re:Elon Musk argues that putting a million people on Mars en... by seanflyon on Tuesday September 30, 2014 @06:14PM (#8391673)
A sufficiently large impact.
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Re:Elon Musk argues that putting a million people on Mars en... by chc on Tuesday September 30, 2014 @07:15PM (#8391973)
Sufficiently large to do what?
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Re:Elon Musk argues that putting a million people on Mars en... by seanflyon on Tuesday September 30, 2014 @07:45PM (#8392082)
Destroy life on earth. I phrased it as a tautology to be humorous, but very large impacts are possible. I doubt life would survive an impact such as the one we hypothesized to have created the moon.

http://en.wikipedia.org/wiki/Giant_impact_hypothesis

"collision between the Earth and an astronomical body the size of Mars"

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