NASA engineers have successfully completed testing on one half of the Nancy Grace Roman Space Telescope — a key step in making sure this future observatory will perform as expected once it reaches ...

Watch as the International Space Station takes shape in this time-lapsed NASA animation of its decade-long assembly, which ...

The SLS for Artemis II is now fully stacked on Mobile Launcher 1, missing only the Orion and its ascent abort motor fairing.

NASA announced on Wednesday (May 14) that the target launch date for Ax-4, the fourth crewed flight to the ISS by Houston-based company Axiom Space, has been pushed from May 29 to June 8.

Starship ignited its Raptor engines Monday morning on a test stand near SpaceX's Starbase launch facility in South Texas. The ...

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