Mars Express & Beagle 2 approach Mars...
...after separating on Friday. Beagle 2 will make landfall on the Isidis Planitia Basin region of Mars on Christmas Day while Mars Express enters Martian orbit, also on Christmas. Mars Express/Beagle 2 is Europe's first robotic mission to Mars.

Meanwhile, NASA's newly renamed Spitzer Space Telescope has produced spectacular infrared images of celestial objects.