A Green Flash from the Sun Image Credit & Copyright: Daniel López (El Cielo de Canarias) The Sun itself does not turn partly green or red -- the effect is caused by layers of the Earth's atmosphere acting like a prism.
Halo of the Cat's Eye Credit & Copyright: R. Corradi (Isaac Newton Group), Nordic Optical Telescope Explanation: The Cat's Eye Nebula (NGC is one of the best known planetary nebulae in the sky.
Four months after it began, the underwater volcanic eruption off El Hierro Island persists. This natural-color satellite image, collected on February shows the site of the eruption, near the fishing village of La Restinga.
Canary Islands Kick Up Von Kármán Vortices: Known as von Kármán vortices, the remarkable curling patterns can form nearly anywhere that fluid flow is disturbed by an object.
Terra satellite shot of the Canary Islands and coast of Africa, showing impact of the currents off the islands and crossing the Atlantic Ocean. Tenerife is the island in the middle that looks like a fat ladle.
An onlooker witnesses the annular solar eclipse as the sun sets in Albuquerque, New Mexico, on May Photographed by Colleen Pinski of Peyton, Colorado, for the the Natural World category.
