VASIMR rocket with capability to reach Mars in 40 days will launch in 2014

Ad Astra Rocket Co. is planning to develop a plasma-powered rocket named Variable Specific Impulse Magnetoplasma Rocket (VASIMR) which would carry astronauts to Mars I period of 40 days.
VASIMR incorporates the technology of radio waves, ionize propellants like argon, xenon or hydrogen, and heat the resulting plasma to temperatures 20 times hotter than that of