SpaceX launches 21 Starlink satellites from California on Sept. 25

California museum returns nearly 1,300 pre-Columbian artefacts to Mexico — The repatriation ceremony at the San Bernardino County Museum was timed to coincide with the beginning of Hispanic Heritage Month in the US and Mexican Independence Day

OSIRIS-REx probe will bring pristine asteroid samples to Earth today. Watch it live

See Mercury reach its highest point in the morning sky early on Sept. 23