A practical answer guide to humankind's age-old questions on planets, our universe and everything beyond and between.More interesting in the long run would be to use the Moon as a training field and launch base to explore Mars and beyond. ... Finally, the Moon could provide one solution to our future energy supply problems. Surface bombardment by the solar wind creates helium-3 there, an isotope that does not exist on Earth. Helium-3 is anbsp;...
|Title||:||A Question and Answer Guide to Astronomy|
|Author||:||Pierre-Yves Bely, Carol Christian, Jean-René Roy|
|Publisher||:||Cambridge University Press - 2010-03-11|