Cassini program manager at JPL, Earl Maize (L), and spacecraft operations team manager for the Cassini mission at Saturn, Julie Webster (R), embrace at NASA's Jet Propulsion Laboratory in Pasadena, Calif., after the Cassini spacecraft plunged into Saturn on September 15, 2017. Since its arrival in 2004, the Cassini-Huygens mission has been a discovery machine, revolutionizing our knowledge of the Saturn system and captivating us with data and images never before obtained with such detail and clarity. Operators deliberately plunged the spacecraft into Saturn, as Cassini gathered science until the end. Photo by Joel Kowski/NASA/UPI