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.
Night Supercell An amazing supercell tracks across southern Nebraska, producing other-worldy storm structures. At times this storm looked like a giant tsunami in the sky. The supercell formed after two supercells merged near McCook Nebraska.