Erik-Ivins NASA’s-Jet-Propulsion-Laboratory

The late summer sun sets over mountains and icebergs around Adelaide Island, Antarctic Peninsula, as 24-hour daylight gives way to the long polar night of winter. (Courtesy of BAS, Hamish Pritchard)
Professor-Andrew-Shepherd-from-Leeds’-School-of-Earth-and-Environment
Tom-Wagner,-cryosphere-program-manager-at-NASA-Headquarters