Homo naledi may have lit fires in underground caves at least 236,000 years ago

Astronomers find the remnants of rocky planets in two stars that evolved into white dwarfs billions of years ago.

A Martian megatsunami may have been caused by an asteroid collision similar to the Chicxulub impact – which contributed to the mass extinction of all non-avian dinosaurs on Earth 66 million years ago – in a shallow ocean region

Satellites detect no real climate benefit from 10 years of forest carbon offsets in California