Astronomy Picture of the Day . ... What lights up this castle of star formation? The familiar Eagle Nebula glows much like a neon sign, but in many colors at once. ... Strange Rocks on Mars . ... Help Aldebaran Map the Moon . ... Tomorrow morning, our Moon will pass directly in front of Aldebaran, the brightest star in this picture and in entire constellation of Taurus. ... This is particularly evident in the above close-up of the LMC's edge, which appears about as large as the full moon. ...