Southern Delta Aquariids and Alpha Capricornids meteor showers will peak this week

Astronomers identify one of the universe's rarest black hole events

Astronomers have detected a rare black hole event at the edge of a galaxy.

Private companies could ruin the night sky for the entire world, and international law can't stop them

NASA Detects Intense Heat Beneath Io, Jupiter’s Most Volcanic Moon

Fossil footprints reveal body size and group dynamics of 1.4-million-year-old human relative

Fossilized footprints in Kenya are reshaping the understood body size and social structures of a 1.4-million-year-old human relative.

Warming seas have less oxygen. California experts say that's really bad.

Two meteor showers are raining down this week with peak views starting now