By now, you’ve undoubtedly heard that SpaceX founder Elon Musk hopes to establish a colony on Mars. Eric Mack of Cnet argues that the plan is insane but not impossible, while TheVerge’s Elizabeth Lopatto finds Musk’s plans implausible, but notes that they may lead to other important discoveries.

Assuming the first flights ever get off the ground, they’ll be dangerous one-way trips.

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