... Credit Copyright: Thomas Nylen Andrew Fountain ( PSU ), NASA , NSF Russell Croman Explanation: A lake hidden beneath 19 meters of ice and gravel has been found near the bottom of the world that might contain an ecosystem completely separate from our own. ... If living organisms are found in Lake Vida , they may give an indication that life might even still exist under similar frozen ice-sheets , such as under the larger Lake Vostok , parts of Mars, and even moons of Jupiter such as Europa . ...