I’ve grown up with rockets that burn chemical fuel, but NASA’s next big leap in propulsion could make those engines look as dated as steam trains. By turning to nuclear power in space, the agency is ...

MOSCOW(AP) — Russia tested a new nuclear-capable and powered cruise missile fit to confound existing defenses, inching closer to deploying it to its military, President Vladimir Putin said in remarks ...

Facing Trump’s call for a quick ceasefire and bruising, new U.S. sanctions on Russia’s oil industry, Putin is again reminding the U.S. and other Western allies of Kyiv about his nuclear arsenal to ...

From bicycles to rockets, learning through experience – whether human or machine – is shaping the future of space exploration.

MOSCOW(AP) — Russia has conducted a successful test of a new atomic-powered and nuclear-capable underwater drone, President Vladimir Putin said Wednesday, declaring that the new weapon can't be ...