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Lake Vostok: The ancient lake no one on Earth has ever seen
Yahoo • • science
Key Points:
- Lake Vostok, the 16th largest lake on Earth, lies hidden beneath 2.5 miles of ice in East Antarctica and has remained isolated for at least 15 million years.
- Despite the extreme cold above, geothermal heat from the Earth keeps the lake's water at about 26.6°F, preventing it from freezing and allowing it to remain in liquid form.
- Researchers have discovered microbes in frozen samples from the lake, indicating a complex microbial ecosystem that includes organisms adapted to both extreme cold and heat, possibly due to hydrothermal vents on the lake floor.
- Lake Vostok serves as an important analog for astrobiological studies, as its environment is similar to subsurface oceans believed to exist on icy moons like Europa and Enceladus, making it a key focus for NASA and other researchers exploring life's potential beyond Earth.
- Since its discovery, over 350 smaller subglacial lakes have been found in Antarctica, highlighting the continent's largely unexplored and unique aquatic environments trapped beneath the ice.
