![]() “Pebbles and boulders found in a river are messengers from afar,” said Ken Farley, Perseverance project scientist from Caltech in Pasadena. Conglomerates like this one (nicknamed “Emerald Lake” by the team) pack a lot of information about places the rover may never visit, with each new rock fragment representing a geologic a story to be told. That’s because this sample was drilled by the rover from an outcrop composed of tiny chunks of other rocks that were carried from elsewhere by a river in the distant past and deposited here, where they became cemented together. ![]() NASA’s Perseverance Mars rover sealed the tube containing its 20th rock core sample on June 23 (the 832nd Martian day, or sol, of the mission), and the mission’s science team is excited about its potential. ![]() ![]() The six-wheeled geologist is getting some assistance in its search for diverse rock samples that could be brought to Earth for deeper investigation. ![]()
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