NASA will laser mark graffiti on Martian rocks for further study on Earth

NASA has laser-marked graffiti on Martian rocks to identify rock samples to be brought back to Earth for study. NASA’s Perseverance rover is currently collecting Martian samples from the 45-kilometer-wide Jezero Crater for future return to Earth, along with a search for signs of ancient life on Mars. The samples will be brought to Earth …

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