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This image, taken in a clean room at NASA's Jet Propulsion Laboratory, shows sample tube number 266, which was used to collect the first sample of Martian rock by NASA's Perseverance rover. The laser-etched serial number helps science team identify the tubes and their contents. Perseverance carries 43 sample tubes, 38 of which have been tasked to carry different samples from a variety of geologic units and surface materials. The other five are "witness tubes" that (prior to launch) were loaded with materials geared to capture molecular and particulate contaminants. They'll be opened one at a time on Mars to witness the ambient environment primarily near sample collection sites, so the scienc — NASA JPL · 2021. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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