Ion engine could one day power 39-day trips to Mars - space - 22 July 2009 - New Scientist
via newscientist.com
Very cool video from here http://www.newscientist.com/article/dn17476-ion-engine-could-one-day-power-39day-trips-to-mars.html?full=true about a new type of ion engine that uses SCRF to pump up the energy in the plasma before ejecting it from the engine. Very cool.
