... Dark Clouds of the Carina Nebula . ... These ominous figures are actually molecular clouds, knots of molecular gas and dust so thick they have become opaque. ... Chances are the brightest star you've seen lately is actually planet Jupiter. Jupiter rules the sky in this labeled view of a starry September night from the Alborz mountains in Iran, complete with the trail of a red flashlight illuminating the mountain road. Northern Lights over Prelude Lake . ... The Veil Nebula . ...