Earthquakes happen when the Earth’s crust suddenly shifts. The crust is broken into large pieces called tectonic plates, ...

The first global atlas of Martian watersheds reveals 16 huge ancient river systems that once shaped Mars and may hold clues ...

New simulations of Milky Way-like galaxies reveal that the strange split between two chemically distinct groups of stars may ...

A major study shows complex cells evolved gradually in an oxygen-poor world, challenging long-held assumptions about life’s ...

About 50,000 years ago, humanity lost one of its last surviving hominin cousins, Homo floresiensis (also known as "the hobbit ...