SpaceCassini's Grand Finale: The ups and downs of our 20-year mission Michele Dougherty's team rode its luck to make eye-opening discoveries around Saturn and its moons. She reveals the project's pleasures and pains Features
SpaceJupiter’s powerful aurora is surprisingly different from Earth’s We always assumed that auroras on Jupiter were caused by the same process that brings the swirling light shows to Earth. New observations show that they aren’t News