New Rocket Engine to Get Us to Mars with 20% Greater Efficiency

That's a picture of XCOR Aerospace's new liquid methane and liquid oxygen powered engine, a prototype of what could be launching future rockets to the Moon and Mars. The private space firm created the engine, which is about 20% more efficient than traditional hypergol engines that power trips today, with funding from… » 1/22/07 9:26am 1/22/07 9:26am