While this latest test doesn’t make nuclear-powered rocket engines viable just yet, it’s an important step on the journey. This latest batch of tests was conducted at the compact fuel element ...

The Sunbird concept is for the fusion-powered ‘tugs’ to be permanently based in space, able to dock with spacecraft and ...

The 184-foot-tall (56-meter) rocket lifted off from Kourou, French Guiana, at 11:24 am EST (16:24 UTC). Twin solid-fueled boosters and a hydrogen-fueled core stage engine powered the Ariane 6 through ...

Artist impression of a nuclear fission powered rocket. Credit: General Atomics A new test of nuclear propellant fuel under space-like conditions has been hailed as a success by NASA and General ...

The Sunbird nuclear fusion rocket concept has the potential to more than halve the time to travel to Mars and cut travel time ...