Mars’ moon Phobos is captured in a daytime image by Curiosity (NASA/JPL-Caltech/MSSS) A raw image taken on September 21 by Curiosity’s right Mastcam shows a daytime view of the Martian sky with a crescent-lit Phobos in the frame… barely visible, yes, but most certainly there. Very cool! The image above is a crop of the … Continue reading "A Crescent Moon in the Martian Sky"