Week's Best Space Pictures

Week's Best Space Pictures: Enceladus' Faces and Space Jets

A dwarf planet shows signs of stress and a distant galaxy wags a glowing blue tail.

Feed your need for heavenly views of the universe. This week, NASA’s Cassini spacecraft bids farewell to Saturn’s moon Enceladus, a young star generates colorful shockwaves, and the dwarf planet Ceres gets its best-ever closeup.