HRSC: Phobos and Jupiter align

Even though it may only be a lump of porous rock, Phobos isn’t shy about hogging the limelight in this sequence taken by ESA’s Mars Express. These three images show Phobos, the larger of the two martian moons, darting across the frame in front of Jupiter, visible as the pale dot in the centre. From right to left, the frames show snapshots before, during and after the small moon’s journey in front of the gas giant… [More at link]