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

Watch how the Space Launch System rocket RS-25 undergoes a core stage engine test-fire. Credit: NASA's Stennis Space Center ...

Named after the first American to orbit Earth, the New Glenn rocket blasted off from Florida, soaring from the same pad used ...

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

Blue Origin launched its massive new rocket on its first test flight Thursday, sending up a prototype satellite to orbit ...

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.

Elon Musk's SpaceX's Starship test flight ended in failure as the spacecraft exploded and broke apart, following a suspected ...

Starship experienced a "rapid unscheduled disassembly," which is a phrase SpaceX coined to describe an explosion.

But bad weather prompted the California rocket builder to delay the high-profile flight to Thursday, when it will follow a NASA spacewalk ... manufacturing and flight test facility at 5 p.m ...

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

NASA's TES-22 CubeSat launched with tech that speeds up satellite deorbiting to clear space debris. It carries technology to ...

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