SpaceNuclear rockets could cut cost of Moon base NASA could save billions of dollars in launch costs for its planned return to the Moon by using nuclear-powered rockets, a top scientist says 51¶¯Âþ
SpaceMagnetic beams could power swifter spacecraft Beams of magnetised plasma could zip astronauts to Mars and back in just 90 days, says the team developing the technology 51¶¯Âþ