Space missions in the future could travel to Mars, asteroids and the outer solar system by riding on nuclear-powered rockets, ...

The first space race was about flags and footprints. Now, decades later, landing on the Moon is old news. The new race is to build there, and doing so hinges on power. While it might feel like a ...

Nasa technicians will integrate the crew-rated Orion spacecraft atop the launch vehicle, preparing the rocket for its test flight with astronauts.

In a preview of their flight, the crew of Artemis II, three Americans and a Canadian, struck a tone that veered away from the ...