Our most frequent guest returns with exciting, just-published research enabled by the 20-year mission’s enormous success. Linda Spilker has served as Cassini Project Scientist for 8 years, and was Deputy Project Scientist for the previous 13. You’ll also get the chance to win Bruce Betts’ great new intro to astronomy book in this week’s space trivia contest.
NASA / JPL-Caltech
Cassini makes the plunge
NASA's Cassini spacecraft plunges toward the gap between Saturn and its rings.
NASA / JPL / SSI
"The Day the Earth Smiled"
In this rare image taken on July 19, 2013, the wide-angle camera on NASA's Cassini spacecraft has captured Saturn's rings and our planet Earth and its Moon in the same frame.