View Full Version : Journey time to Mars drastically reduced

The Empirical Guy
03-01-2010, 11:24 PM
A journey from Earth to Mars could in the future take just 39 days - cutting current travel time nearly six times - according to a rocket scientist who has the ear of the US space agency.
Franklin Chang-Diaz, a former astronaut and a physicist at the Massachusetts Institute of Technology (MIT), says reaching the Red Planet could be dramatically quicker using his high-tech VASIMR rocket, now on track for liftoff after decades of development.
The Variable Specific Impulse Magnetoplasma Rocket - to give its full name - is quickly becoming a centrepiece of NASA's future strategy as it looks to private firms to help meet the astronomical costs of space exploration.
NASA, still reeling from a political decision to cancel its Constellation program that would have returned a human to the moon by the end of the decade, has called on firms to provide new technology to power rovers or even future manned missions.
Hopes are now pinned on firms like Chang-Diaz's Texas-based Ad Astra Rocket Company.
"In the early days... NASA support for the project was rather minimal because the agency did not emphasise advanced technologies as much as it's doing now," Chang-Diaz told AFP.
NASA was focused instead on the series of Apollo missions that delivered men to the moon for the first, and so far last, times.
"They were mesmerised by the Apollo days and lived in the Apollo era for 40 years, and they just forgot developing something new," he said.
Chang-Diaz, 60, hopes that "something" is a non-chemical rocket that eventually allow for a manned trip to Mars - long the Holy Grail for Apollonians.
His rocket would use electricity to transform a fuel - likely hydrogen, helium or deuterium - into plasma gas that is heated to 11 million degrees celsius. The plasma gas is then channelled into tailpipes using magnetic fields to propel the spacecraft.
That would send a shuttle hurtling toward the moon or Mars at ever faster speeds up to an estimated 55 kilometres per second until the engines are reversed.
Chang-Diaz, a veteran of seven space missions, said this rapid acceleration could allow for trips of just 39 days instead of the anticipated round trip voyage to Mars of three years, including a forced stay of 18 months on the Red Planet, as astronauts await an opening to return to Earth.
The distance between the Earth and Mars varies between 55 million and 400 million kilometres, depending on their points of orbit.
Scaled-down models of the VASIMR craft have been built and tested in a vacuum, under a deal with NASA.
The next major step will be orbital deployment at the end of 2013 of a vessel using the 200-kilowatt prototype VASIMR engine, the VX-200.
Despite the hurdles ahead, Chang-Diaz sees the potential for a vast market for his technology - maintaining and repairing fixing satellites or launching robotic and commercial missions to Mars.
His rocket may just launch NASA's brave new, commercial, world of space exploration.

Sauce: http://news.ninemsn.com.au/technology/1018050/voyage-to-mars-can-be-done-in-39-days

03-02-2010, 08:13 AM
Nice. What a bloody good rocket for someone not reverse engineering the technologies various world Governments hold in secret. I hope this goes ahead, despite that NASA wont bother to visit (at least in the public eye) the interesting aspects of mars... just the obviously (to the public) interesting ones like the ice caps. Sigh... fuck the goverment, but hump this rocket, sheer nicenessssssssssssssssssssssss. :P

Anima XI
03-02-2010, 08:34 AM
That sounds amazing =) can't wait until a trip to Mars actually happens =D

03-02-2010, 10:58 AM

The Empirical Guy
03-02-2010, 09:22 PM
For someone as geeky as me, the exciting bit about this is that the way the rocket propulsion actually works is essentially exactly the same as a Plasma Gun in Warhammer 40,000 XD

03-02-2010, 10:06 PM
For someone as geeky as me, the exciting bit about this is that the way the rocket propulsion actually works is essentially exactly the same as a Plasma Gun in Warhammer 40,000 XD

(in Borat accent...) NIACE!!! :D

Warhammer kicks ass