An analysis of two decades of data from NASA's Hubble Space Telescope has provided fresh insights into the complex ...

Learn about the time period that took place 65 to 23 million years ago. 3 min read At the dawn of the Paleogene—the beginning of the Cenozoic era—dinosaurs, pterosaurs, and giant marine ...

Uranus, the ice-giant planet that tilts dramatically on its side as it orbits the Sun, has long puzzled scientists. When NASA ...