On the first of this month it was reported that scientists were about to complete a 30 year drilling expedition to hit a 20-million-year-old lake: this week they've reached the surface. This body of water called Vostok is Antarctica's largest subglacial lake and is believed by scientists to be "the only giant super-clean water system on the planet." This body of water could contain life and give us Earth-shattering information on our past, excuse the pun, or it could contain an environment unlike anything we've experienced before. If either result turns out to be true, we'll gain insight on "alien" lakes like those we've found already on Jupiter's moon Europa. Thirty years of drilling and the research portion of the expedition can begin!