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.
Wimbledon 2016: Serena Williams Net Worth, Roger Federer Net Worth and MoreSee how much your favorite tennis players are earning, like Novak Djokovic. From June 27 to July 10, the worldâs best and highest-paid tennis players will gather at The All England Club to compete in Wimbledon, one of four Grand Slam tournaments.