This is a picture of a comet heading for Mars. Mars is the big red thing and the comet, named C/2013 A1 ('Siding Spring'), is the green-tailed beast to the lower left. [more inside]
The European Space Agency's Rosetta craft has returned stunning images of the asteroid 21 Lutetia, including this one which couples Lutetia with a member of our planetary family. [more inside]
The MESSENGER spacecraft launched from Cape Canaveral on August 3, 2004 and returned to Earth for its first gravity boost on the way to Mercury a year later on August 2, 2005. MESSENGER took hundreds of high-res digital photos during its Earth flyby and they've been sequenced into an amazing movie of Earth rotating over 24 hours as the spacecraft swung past at thousands of miles per hour.
Saturn's enigmatic moon Titan holds on to its mysteries. Radar images reveal quite a bit of variation but no clear interpretation. The hazy atmosphere prevents the sudden shock of discovery that characterized the Voyager and Galileo flybys of the moons of Jupiter, revealing little more than fuzzy Rorschach blobs. With less than 1% of the surface mapped, researchers suspect that Titan has a young surface shaped by processes that have yet to be revealed.
Swan song for a great explorer. Tomorow, the Galileo explorer will make a flyby of Jovian moon Amalthea ending pehaps the geatest unmanned mission in NASA history. Galileo telemetry may not survive the flyby having already receieved much more radiation than it was designed for. Even if it does survive, this will be its final orbit scheduled to crash into Jupiter in September of next year. In spite of antenna difficulties, the spacecraft returned many beautiful images of Jupiter's moons, along with coverage of the Shoemaker-Levy collision and the first atmospheric probe to decend into Jupiter's weather.