This article is pretty cool. Apparently there is this lake in Antarctica which has been frozen over for about 15 million years. Below the ice is liquid water.
Scientists have been drilling down through the ice to reach the lake, 3,750 meters (12,000 ft) beneath the polar ice cap, racing to complete the drilling before the end of the brief Antarctic summer. They are unsure of what, if anything, may be lurking in the water.
Scientists suspect the lake’s depths will reveal new life forms, show how the planet was before the ice age and how life evolved. It could offer a glimpse at what conditions for life exist in the similar extremes of Mars and Jupiter’s moon Europa.
“It’s like exploring an alien planet where no one has been before. We don’t know what we’ll find,” said Valery Lukin of Russia’s Arctic and Antarctic Research Institute (AARI) in St Petersburg, which oversees the expedition.
Read the whole article on Reuters