... Search By Name Enter coordinates Use current location . SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Moon . ... Signs of Europa plumes remain elusive in search of Cassini data . ... A fresh look at data collected by NASA s Cassini spacecraft during its 2001 flyby of Jupiter shows that Europa s tenuous atmosphere is even thinner than previously thought and also suggests that the thin hot gas around the moon does not show evidence of plume activity occurring at the time of the flyby. ...