By the way Nova had a great segment on using a plasma rocket to get to Mars in just 39 days or so: http://www.pbs.org/wgbh/nova/space/plasma-rockets.html http:

By the way Nova had a great segment on using a plasma rocket to get to Mars in just 39 days or so: http://www.pbs.org/wgbh/nova/space/plasma-rockets.html http://www.pbs.org/wgbh/nova/space/plasma-rockets.html A must read book on this subject is also the case for Mars: http://en.wikipedia.org/wiki/The_Case_for_Mars http://en.wikipedia.org/wiki/The_Case_for_Mars