Not having anything that they're striving for." "Not going back to the moon or trying to go to Mars, or anything else."

VOA: standard.2010.04.15

So, if we're going to go to the moon, we're going to go to Mars,we want to be able to produce oxygen, structural metals and photovoltaic materials from in situ resources.

如果我们要去月球上，我们要去火星上，我们则必须要制造,氧气，结构金属和光电材料,就在原地制造。

麻省理工公开课 - 固态化学导论课程节选

It's what we'd use to go to, eventually,to Mars or to the moons of Mars."

VOA: special.2009.12.30