NASA's Artemis II mission will launch with SLS rocket engines that have flown multiple times on past space shuttle missions.

Rocket engines are still being built with a manufacturing logic that additive systems are increasingly making obsolete. That ...

NASA's Artemis II mission will send four astronauts around the moon. Here's how the SLS rocket and Orion spacecraft will work ...

Reusable rockets have reshaped the economics of spaceflight by dramatically reducing the cost of launching payloads into orbit. Traditional rockets were single-use vehicles that burned up or crashed ...

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 ...