Two marsupial species thought long extinct, until now known only from fossils, were found alive in New Guinea through a collaboration of scientists, indigenous communities and citizen scientists ...

Space contains objects far more extreme than our Sun, including neutron stars, pulsars, quasars, white dwarfs, and black ...

A newly described Patagonian fossil reveals the evolutionary origins and global spread of the tiny alvarezsaur dinosaurs.

Chalk up another victory for “Conan the Bacterium”—a rugged germ that fresh research suggests could conquer the solar system.