Tue. Jan 14th, 2025


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NASA’s Perseverance rover discovers evidence of ancient lake on Mars

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NASA’s Perseverance rover has found evidence of an ancient lake on Mars, which could have supported life billions of years ago. The discovery was made in the Jezero crater, a 45-kilometer-wide impact crater that was once home to a lake.

The rover, which landed on Mars in February 2021, has been exploring the crater since then. Its findings have been published in the journal Science.

The lake was likely formed around 3.5 billion years ago, during a period known as the Hesperian era. At that time, Mars was much wetter than it is today, with evidence of rivers, lakes, and even oceans.

The Perseverance rover used its Alpha Particle X-Ray Spectrometer (APXS) instrument to analyze the chemical composition of rocks in the Jezero crater. The instrument detected high levels of calcium and magnesium, which are common in lake sediments.

The rover also found evidence of clay minerals, which are often formed in the presence of water. The presence of these minerals suggests that the lake was likely a permanent body of water, rather than a temporary flood.

The discovery of the ancient lake is significant because it provides evidence that Mars was once capable of supporting life. The lake would have provided a habitat for microorganisms, which could have evolved into more complex life forms over time.

The Perseverance rover is equipped with a suite of instruments designed to search for signs of past or present life on Mars. The rover is also testing technologies that could be used in future human missions to Mars.

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