SpaceX's Falcon 9 rocket second stage captured this amazing view of Earth after launching the SES-18 and SES-19 satellites.

Starliner co-pilot Sunita Williams is now the world's most experienced female spacewalker, moving up to No. 4 overall.

OpenAI CEO Sam Altman downplayed the significance of a new artificial intelligence (AI) model released by Chinese startup ...

The Falcon 9's upper stage hauled the SpainSat NG-1 satellite to a geosynchronous transfer orbit, where it was deployed 31.5 ...