... In this beach and skyscape from Alicante, Spain, July's Full Moon shines in the dark blue twilight, its reflection coloring the Mediterranean waters. ... Ou4: A Giant Squid Nebula . ... A mysterious, squid-like apparition, this nebula is very faint, but also very large in planet Earth's sky. ... 3D Homunculus Nebula . ... A Blue Bridge of Stars between Cluster Galaxies . ... Why is there a blue bridge of stars across the center of this galaxy cluster? ... Auroras over Northern Canada . ...