Natasha Wiest, Boeing's SLS core stage program manager, delivered a NASA Artemis II-themed speech to a space-industry ...

NASA’s rehearsal for Artemis II marks one of the final steps before four astronauts get launched into deep space for the ...

NASA vs SpaceX rockets compared on cost, technology, and performance, revealing how reusability and innovation reshape modern ...

Sign up for CNN Science’s pop-up newsletter covering NASA’s Artemis II mission, which will take four astronauts on a 10-day ...

A US House committee with oversight of NASA unanimously passed a “reauthorization” act for the space agency on Wednesday. The ...

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 ...

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NASA plans to return humans to deep space next month, targeting a Feb. 6 launch for Artemis II, a 10-day crewed mission that will carry astronauts around the Moon for the first time in more than 50 ...

The powerful Vulcan faces its biggest test yet as it prepares to launch on its second national security mission from Florida.

In Focus delivers deeper coverage of the political, cultural, and ideological issues shaping America. Published daily by senior writers and experts, these in-depth pieces go beyond the headlines to ...

Plasma propulsion transforms an inert propellant – often hydrogen – into plasma, a superheated mix of ions and electrons.