Prepare to say goodbye to Cassini. In the early morning hours of September 15, NASA’s 13-year mission exploring Saturn and its moons will come to an end as the spacecraft deliberately dives into ...

NOVA takes you inside Cassini ’s epic journey as it makes stunning discoveries: Saturn’s rings are younger than the dinosaurs and may be remnants of an ice moon. And geysers erupting ice and gas on ...

Planets and robots lack hearts and minds, but they’re especially good at impacting ours. In its last days before ending itself, human-built Cassini turned around and snapped this farewell mosaic image ...