Posted by tourdemars to Humans To Mars at October 20, 2004 09:32 AM

Advocates of a propulsion idea for spacecraft claim that it would enable a 90-day round trip to Mars. Using current technology, it would take astronauts about 2.5 years to travel to Mars, conduct their mission and return to Earth, US scientists estimate. It would use a space station to fire a beam of magnetised particles at a solar sail mounted on a spacecraft.