Depending on weather and cloud cover, visibility for SpaceX or United Launch Alliance rocket launch in California could extend far beyond Golden State ...

NASA's Space Launch System (SLS) continues to make progress toward its Artemis 2 mission planned for next year; SLS is ...

Theoretically, Sunbird's tremendous speeds could cut mission times to Mars in half, from seven to eight months to about four.

Dr. Jessica Shepherd, chief medical officer for Hers, joins ABC News Live to discuss the results of the president’s physical.

SpaceX broke its rocket-reuse record yet again early Monday (April 14), launching a batch of Starlink internet satellites ...