Traces of life on Mars may have been erased, according to NASA | WHAT REALLY HAPPENED

Traces of life on Mars may have been erased, according to NASA

In 2011 the Curiosity Rover was sent to Mars to collect stones from a location where a lake used to exist. It is important because the fact that there was water could indicate that at some point there was life on the desert planet.

The clay samples that the robot has found are an indication that at some point there was water on the red planet, since it is produced when rocky minerals wear out and rot after having contact with water, which is the key to the existence of life and a material that can store microbial fossils.

"Since the minerals that we find on Mars are also formed in some places on Earth, we can use what we know about how they form on Earth to tell us how salty or acidic the waters were on ancient Mars," explained Liz Rampe , CheMin's adjunct principal investigator and co-author from NASA's Johnson Space Center in Houston.

However, the clay samples Rover collected do not contain the elements scientists expected and instead found a high concentration of iron oxide, which would have obliterated any fossil traces.

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