"Dan Luke" wrote:

Everything launched from the moon will have to be launched from Earth
first. Anything going to Mars will have to escape gravity twice.

Perhaps, perhaps not. Materials for radiation shielding,
perhaps fuel or oxidizer are available on the moon.
Construction is likely to be easier than on-orbit, and a
Mars mission is likely to be heavier than a single boost can
accommodate.


Todd Pattist
(Remove DONTSPAMME from address to email reply.)
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