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" ... Using a revolutionary new imaging process, an international team of researchers from Brazil, France and Switzerland have used x-ray synchrotron radiation to peer into microfossil-rich Earth rocks that date back 1.88 billion years. And although a boon for nanopaleontology here on Earth, this new technique will also help researchers positively identify microfossils in both Mars meteorites and in rock samples collected from future Mars sample return missions. ... "