Scientists think a small rock discovered near Earth last August was hurled into space by an ancient impact on the lunar surface.

Discover Chris Bledsoe's extraordinary encounter with a 45-foot egg-shaped UFO. Learn about his experiences, government interest, and upcoming revelations on his son's podcast "Bledsoe Said So." ...

Chorus waves are mysterious, chirping signals produced by spiraling plasma inside our planet's magnetic field. But a new detection suggests scientists may understand less about them than first thought ...

Einstein Probe's Wide-field X-ray Telescope (WXT) detected a burst of low-energy X-rays. Astronomers call such X-rays "soft," even though they are still far more energetic than visible or ultraviolet ...

Peculiar bursts of energy called chorus waves have been detected in deep space far from our planet, suggesting they could ...

The case of mistaken identity was quickly resolved, but astronomers say it shows the need for transparency around craft in ...

Four small suitcase-sized spacecraft, designed and built by Southwest Research Institute, have made a final Earth-side pit ...

NASA has achieved a critical milestone in space exploration with the successful testing of advanced nuclear thermal ...