... Mercury in Accentuated Color . ... One such image, shown above, was acquired by the robotic MESSENGER spacecraft that swung by Mercury in mid-January. M78 and Reflecting Dust Clouds in Orion . ... An eerie blue glow and ominous columns of dark dust highlight M78 and other bright reflection nebula in the constellation of Orion. ... What does the surface of Saturn's ice-spewing moon Enceladus look like? ... Recorded on March 8, the Moon is a mere 22 hours young. ... An Avalanche on Mars . ...