... A remarkably intense auroral band flooded the northern night with shimmering colors on December 7. ... Of course, the clouds are sculpted by stellar winds and radiation from massive hot stars in the nebula's newborn star cluster, Melotte 15. The Hydrogen Clouds of M33 . ... What does the Martian moon Phobos look like? ... The rotation is actually a digital illusion -- tidally-locked Phobos always keeps the same face toward its home planet, as does Earth's moon. ... SDO s Multiwavelength Sun . ...