WATSON Documents Final Tube Dropped at Three Forks Sample Depot
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NASA's Perseverance Mars rover dropped the last of 10 tubes at the "Three Forks" sample depot on Jan. 28, 2023, the 690th Martian day, or sol, of the mission. This image of the 10th tube was taken by the WATSON (Wide Angle Topographic Sensor for Operations and eNgineering) camera on the end of the rover's 7-foot-long (2-meter-long) robotic arm. This final sample is what's called a "witness" tube – one of three collected by the rover so far and the only one deposited at the depot. Witness tubes are similar to the sample tubes that hold Martian rock and sediment, except they have been preloaded with a variety of materials that can capture molecular and particulate contaminants. They are opened — NASA JPL · 2023. ABD devlet eseri: kamu mali, ticari islerde de serbestce kullanilabilir.
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