NASA’s robotic rover Curiosity discovered an ancient lake on Mars

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Even if today Mars is dusty and harsh, without any water sign on its surface, in the past this lake and probably similar others were around for possibly hundreds of thousands of years. This lake near the Martian equator existed about 3.5 billion years ago. What is surprising is its composition: scientists say it was neither salty nor acidic and contained nutrients capable to support “microbes.” Possibly, this lake may have teemed with tiny organisms for tens of millions of years. The ancient freshwater lake was theoretically drinkable, like the water is on Earth today.
The roving science laboratory Curiosity used its instruments to determine the age of the rock in the area and the answer was: 4.2 billion years old.
Curiosity, a car-sized robotic rover exploring Gale Crater on Mars was launched in November, 2011. In December 2012, Curiosity’s two year mission was extended indefinitely and probably new interesting information could be obtained.

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