Plasma rocket may shorten space voyages - msnbc.com
Rocket could take astronauts to Mars in little more than a month.
Variable Specific Impulse Magnetoplasma Rocket (VASIMR),
is being developed to one day transport astronauts to Mars in 39 to 45 days
http://www.msnbc.msn.com/id/36942268/ns/technology_and_science-space/
