NASA's Perseverance rover could find 'false fossils' on Mars, scientists warn

A rock core is visible inside the Perseverance rover's sample tube, on September 1, 2021.NASA/JPL-Caltech/ASU
NASA's Perseverance rover is searching for signs of ancient microbial life on Mars.
NASA should watch out for deceptive "pseudofossils," scientists warn in a new paper.
Some non-biological processes can make structures that look like fossils of microscopic organisms.
When looking for signs of life on Mars, we need to look out for "false fossils" that may be abundant on the red planet, ac