Russian researchers at the Vostok station in Antarctica pose for a picture after reaching subglacial lake Vostok. Scientists hold the sign reading "05.02.12, Vostok station, boreshaft 5gr, lake at depth 3769.3 metres," on Sunday, Feb. 5, 2012. The Russian team reached the lake hidden under miles of Antarctic ice on Sunday, a major scientific discovery that could provide clues for search for life on other planets. (AP Photo/Arctic and Antarctic Research Institute Press Service)
Read the article: Russian scientists' drilling reaches giant freshwater lake under Antarctica
