Here's a YouTube video on the VASIMR. More about the VASIMR in a September article in The Space Review written up by Jeff Foust here. The Space Review article is about proposals to use VASIMR for a Mars mission.
It looks like Zubrin is in a big hurry to go to Mars. A Mars mission looks too ambitious to me. Put up the lunar infrastructure first. That is a better use of the VASIMR technology. A 500 meg nuke reactor is mighty big. Too much to get up there and to power that thing. Zubrin is right about that. But he may be wrong to try to push for a Mars mission too soon.
Just my two cents.
Interesting comments in that article as well. All well worth a read.
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