These are the closest-ever images of Saturn. They were taken by NASA's Cassini spacecraft just days before it crashed into Saturn. The results are spectacular. Shortly after Cassini took its final ...

In fact, it's the closest any spacecraft has ever come to Saturn — just 1,900 miles from the beautiful planet's cloud tops. Even more exciting, Cassini has already transmitted images of what it ...

The Antennae Galaxies are filled with black holes and neutron stars, speeding up the process of star formation and change. Saturn's rings, first observed by Galileo 400 years ago, have since become ...