NASA plans to launch its first nuclear-powered interplanetary spacecraft in 2028, a probe called Space Reactor-1 Freedom that will carry a fleet of tiny helicopters to Mars. When you buy through links on our articles, Future and its syndication partners may earn a commission. Skyfall is happening, and it will get to Mars in a totally new way. Last summer, NASA's Jet Propulsion Laboratory and the Virginia company AeroViro... [3846 chars]