Tranquil The surface area of Saturn's moon Mimas is composed of water ice with only a small amount of rock. Yet Saturn's resonances with Mimas, and Mimas' resonances with other orbiting satellites are instrumental in the formation of Saturn's rings.
The Milky Way - 84 Million Stars in 9 Billion Pixels via petapixel: The image is a composite of thousands of photos shot by the VISTA survey camera by Astronomers at the European Southern Observatory’s Paranal Observatory in Chile.
Beautiful milky way over the Moeraki Boulders, New Zealand. They are unusually large and spherical boulders lying along a stretch of Koekohe Beach on the wave cut Otago coast of the South Island of New Zealand between Moeraki and Hampden. (by Yan Zhang on