In a groundbreaking discovery, Spanish researchers have unveiled a massive underwater mountain off the coast of Lanzarote, ...

Sea ice surrounding the continent expands outward ... The hole was named the Maud Rise polynya for the seamount, or underwater mountain, located beneath it in the Weddell Sea.

Arctic sea ice has thinned significantly over the past half century, and its extent has declined by about 10 percent in the past 30 years. NASA's repeated laser altimeter readings show the edges ...