As reported by NASA, Several of the recently collected roving probe samples contain organic material, indicating that 3.5 billion years ago the Jezero Crater was an environment capable of supporting life.. Importantly, although this isn’t the first time scientists have found organic molecules on Mars, because both Perseverance and former Curiosity have already made this discovery, in this case the sampling site, the river delta, plays a key role.
Deltas are structures that form in places where a river flows into a larger body of water (a sea or a lake), which is characterized by slight fluctuations in the water level, Filled with silt, sand and other transported materials, including life-supporting nutrients. In the case of Mars, the largest water structure was probably a crater lake, and scientists believe that if there was life on this planet, we might find traces of it here.
The scientist of the Perseverance Project explains that they found, among other things, in the delta sandstonewhich contains sand grains and rock fragments that formed far from Jezero crater (Skinner Ridge) And the Clay contains interesting organic compounds (Wildcat Ridge). The latter is particularly interesting because it most likely formed when clay and sand settled in a salt lake that evaporated billions of years ago.
The rover analyzed its sample using a tool known as the Raman & Luminescence for Organics & Chemicals survey.Sherlock), which makes it possible Discover chemicals, minerals and organic matter. Further analysis showed that the organic molecules are likely aromatic compounds or stable carbon and hydrogen molecules bound to sulfates (sulfate minerals, often found in layers of sedimentary rocks, store information about the aquatic environment in which they formed).
organic molecules such as Carbon, hydrogen and oxygen, as well as nitrogen, phosphorous and sulfur, are of course the main focus because they are the basic building blocks of life. Although they don’t all need life to form, some can be made through chemical processes, so their mere presence isn’t evidence of life, but NASA stresses that it looks really promising this time:
four The samples taken were of course secured in the delta and joined with the other samples, so there are a total of 12 samples on board the rover.. Now it remains to wait at least 10 years for samples to be brought back to Earth as part of a series of Mars sample return missions, because although the rover is equipped with highly advanced research instruments, it will not replace an entire laboratory. Analytics.
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