NASA's Cassini mission is closing one chapter of its journey at Saturn and embarking on a new one with a two-year mission that will address new questions and bring it closer to two of its most intriguing targets—Titan and Enceladus.
Four students have won the Cassini Scientist for a Day contest, with most choosing Rhea, Saturn's second-largest moon, as the best place for scientists to study using NASA's Cassini spacecraft.
Two decades of scrutinizing Saturn are finally paying off, as scientists have discovered a wave pattern, or oscillation, in Saturn's atmosphere only visible from Earth every 15 years.
Cassini watches as a powerful electrical storm rages on Saturn with lightning bolts 10,000 times more powerful than those found on Earth.
A selection of the best images from Saturn, its rings and moons will appear in an exhibition opening on April 26 at the American Museum of Natural History in New York City.
NASA is extending the international Cassini-Huygens mission by two years.
A group of students from Shirley Avenue Elementary School in Reseda, California, pose in front of a half-scale model of the Cassini spacecraft at JPL. The students participated in the pilot edition of "Cassini Scientist for a Day" in 2005.
Could microbial life exist inside Enceladus, where no sunlight reaches, photosynthesis is impossible and no oxygen is available?