Learn about the fatal encounters between two groups of killer whales, bringing the idea of whale cannibalism into question.

Learn how Permian-era fossils from Brazil led researchers to a tetrapod with a twisted jaw from a lineage once thought ...

Learn how four decades of solar observations uncovered hidden changes inside the Sun and what they could mean for future ...

Learn how researchers may have finally uncovered why some people experience long-lasting taste loss after COVID-19.

Learn more about the ozone hole, how it was created, how it was healed, and what message it offers about climate change.

Learn why the launch date of Artemis II has been pushed back to April 2026 and what factors NASA must consider before a spacecraft can take off.