Can it take off from Mars? In another HN thread a month ago, we discussed how Ma... | Hacker News

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stephengillie on Nov 28, 2012 | parent | context | favorite | on: British aerospace company claims biggest engine ad...

Can it take off from Mars? In another HN thread a month ago, we discussed how Mars' atmosphere is so thin that a Cessna would need 747 wings and near Mach 1 velocity to take off.

wololo on Nov 28, 2012 | [–]

fyi: https://news.ycombinator.com/item?id=4261806, https://news.ycombinator.com/item?id=4608595

ricardobeat on Nov 28, 2012 | [–]

Rockets are propelled by their own exhaust.

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