Buzz Aldrin

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.

I am a part of the old school where I feel that purity of the language should be retained. But English is a constantly evolving language where new words are being added to the dictionary, so I don't see any harm in experimenting with the language. Only poor editing standards need to be improved.

When I climb into my car, I enter my destination into a GPS device, whose spatial memory supplants my own. I have photographs to store the images I want to remember, books to store knowledge and now, thanks to Google, I rarely have to remember anything more than the right set of search terms to access humankind's collective memory.