Newly discovered fossils have given scientists their first real glimpse of when Earth made a crucial transition from plants ...

Aliens may not be green after all. New research suggests entire planets could appear purple, changing how scientists detect ...

TOI-4616 b is an Earth-sized exoplanet orbiting an M-dwarf that offers a strong benchmark for studying atmospheric loss and ...

A treasure trove of fossils from China shows that the Cambrian explosion may have been less explosive than scientists once ...

In March 2026, SETI Institute researchers contributed to a wide range of conversations about our solar system and the search ...