Figure out the initial mass in LEO required for a human mission to Mars.
(assuming its manned).
Quote from: ciscosdad on 02/20/2013 10:43 PM(assuming its manned).They are sufficiently vague about that aren't they?Maybe it's something else...
Landing and ascent is out of the picture for 2018, manned or unmanned.
Quote from: Robotbeat on 02/21/2013 05:37 AMLanding and ascent is out of the picture for 2018, manned or unmanned.Why?