from YouTube Website
Theyíve found one of the largest lakes in the world. Itís very existence defies belief. Scientists are desperate to get into the lake because its extreme environment may be home to unique flora and fauna, never seen before, and NASA are excited by what it could teach us about extraterrestrial life.
But 4 kilometers of ice stand between
the lake and the surface, and breaking this seal without
contaminating the most pristine body of water on the planet is
possibly one of the greatest challenges science faces in the 21st
It soon became a byword for hardship - dependent on an epic annual 1000km tractor journey from the coast for its supplies. The coldest temperature ever found on Earth (-89įC) was recorded here on the 21st July 1983. Itís an unlikely setting for a lake of liquid water.
But in the 1970ís a British team used airborne radar to see beneath the ice, mapping the mountainous land buried by the Antarctic ice sheet.
Flying near the Vostok base their radar
trace suddenly went flat. They guessed that the flat trace could
only be from water. It was the first evidence that the ice could be
hiding a great secret.
The theory was that it could only exist
because the ice acts like a giant insulating blanket, trapping
enough of the earthís heat to melt the very bottom of the ice sheet.