Assembly of the Artemis II moon rocket has reached its latest milestone with the stacking of the twin boosters' right forward ...

SpaceX launched a new round of Starlink satellites into lower Earth orbit on its 11th launch of 2025, setting it on pace to ...

Angry Astronaut and Nextbigfuture commenter are making the case that SpaceX and Elon Musk must switch to nuclear thermal rockets to colonize Mars. I will ...

For the past week, an uncrewed lunar lander has been journeying through outer space on a 60-day mission to the moon on behalf ...

A new type of nuclear thermal propulsion reactor fuel has been successfully tested at NASA’s Marshall Space Flight Center, ...

California-based space company Rocket Lab will launch more hypersonic test vehicles for the U.S. Military, as the Department ...

General Atomic's new nuclear fuel was subjected to the maximum heat of a reactor for 20 minutes in the latest tests.

Miss Sam, a rhesus monkey, successfully flew onboard a Mercury test capsule to prove the effectiveness of the launch escape system.

General Atomics Electromagnetic Systems (GA-EMS) has successfully tested the nuclear fuel that may one day propel and power the spacecraft of the future. The trials verify that the fuel can survive ...

Teams with NASA are gaining momentum as work progresses toward future lunar missions for the benefit of humanity as numerous ...

While SpaceX lost the upper stage of its new Starship in a flight test, the futuristic spacecraft presages a spaceflight revolution, says a leading U.S. space scholar.

Rocket Lab USA Inc. scored two new deals this month for launches for two government agencies. In the first, the Long Beach ...