Ellen Stofan

Instead of being able to look at smaller interesting research projects, I am trying to see the links between all the research NASA does. For me, that's extremely fun because I get to go play and learn about areas of science that I know nothing about.

Supplying fuel for a Mars expedition from the lunar surface is often suggested, but it's hard to make it pay off - Moon bases are expensive, and just buying more rockets to launch fuel from Earth is relatively cheap.

To ask questions can become the laziest and wobbliest occupation of a mind, but when you must yourself answer the problem that you have posed, you will meditate your question with care and frame it with precision.