One of Jupiter’s moons, Ganymede, is partially eclipsed by the gas giant in this Hubble telescope image. Ganymede completes an orbit around Jupiter once per week, though this particular image was useful in that it allowed astronomers to determine how hazy Jupiter’s atmosphere is by measuring light reflected off of Ganymede.
Credit: NASA, ESA, and E. Karkoschka (U. Arizona)
For more astronomy, check out AstronomyForAmateurs.com
Sol 613: New Curiosity selfie, direct from the surface of Mars.
The picture is a stitched composite of multiple photographs taken by the MAHLI instrument on the end of Curiosity’s main arm. The multiple, overlapping photographs allow the arm to “disappear.”
Trippy version of that composite:
Video of how they do it: http://www.jpl.nasa.gov/video/?id=1171#fragment-1