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WhateverReason

Could a tiny tube inside NASA’s Perseverance rover contain the strongest clue yet that something has lived somewhere other than Earth? This Howtown episode follows the discovery of Sample 25, “Sapphire Canyon,” drilled from the Cheyava Falls rock in the Neretva Vallis river channel leading into a Martian impact basin called Jezero Crater. Inside are organic molecules, minerals, and “leopard spots” that may provide a potential biosignature left by ancient Martian microbes. In order to confirm the biosignature, researchers need to study the sample with instrumentation in laboratories on Earth, but the much-anticipated Mars Sample Return mission was cancelled by the US government after a review board concluded that it would cost more and take longer than originally planned.