But when the question of how to explore the lake came up, not long after its discovery, the Vostok scientists faced a serious dilemma. The lake is under immense pressure, and to breach the ice would have devastating consequences.
Roger Federer: Swiss star will play on until at least 2019. Updated 1815 GMT (0215 HKT) February 21, 2017. Chat with us in Facebook Messenger. Find out what's happening in the world as it unfolds.
Twelve months later, Roger Federer, that famous combination of Chopin and Godzilla, is pretty much astounded. He won the Australian Open as a No. 17 seed, won the big second-tier tournaments in Indian Wells and Miami, and on Friday he finished a merry venture into the 2017 Wimbledon menâs singles final with a nearly spotless whoosh.