Some scientists believe life may have started on Mars -- here's why
By Nicole Karlis, Salon
Published February 07, 2021
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On February 18, NASA's Perseverance rover will parachute through thin Martian air, marking a new era in red planet exploration. Landing on the Jezero Crater, which is located north of the Martian equator, will be no easy feat. Only about 40 percent of the missions ever sent to Mars succeed, according to NASA. If it does, Perseverance could drastically change the way we think about extraterrestrial life. That's because scientists believe Jezero, a 28 mile-wide impact crater that used to be a lake, is an ideal place to look for evidence of ancient microbial life on Mars.
Once it lands, Perseverance will collect and store Martian rock and soil samples, which will eventually be returned to Earth. This is known as a "sample-return mission," an extremely rare type of space exploration mission due to its expense. (Indeed, there has never been a sample return mission from another planet.) And once Martian soil is returned to Earth in a decade, scientists will set about studying the material to figure out if there was ever ancient life on Mars.
Yet some scientists believe that these samples could answer an even bigger question: Did life on Earth originate on Mars?
https://www.rawstory.com/life-on-mars/
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