الوضع الليلي
7:51:54 
2023-04-05 
946
Perseverance rover collects first Mars sample of new science campaign
NASA's Perseverance rover cored and stored the first sample of the mission's newest science campaign on Thursday, March 30. With each campaign, the team explores and studies a new area. On this one, the rover is exploring the top of Jezero Crater's delta. Perseverance has collected a total of 19 samples and three witness tubes, and it recently deposited 10 tubes as a backup cache on the Martian surface as part of the NASA-ESA (European Space Agency) Mars Sample Return campaign.
Scientists want to study Martian samples with powerful lab equipment on Earth to search for signs of ancient microbial life and to better understand the water cycle that has shaped the surface and interior of Mars.
Cored from a rock the science team calls "Berea," this latest sample is the 16th cored rock sample of the mission. There are also samples of regolith or broken rock and dust as well as Mars atmosphere. The science team believes Berea formed from rock deposits that were carried downstream by an ancient river to this location. That would mean the material could have come from an area well beyond the confines of Jezero Crater, and it's one reason why the team finds the rock so promising.
"The second reason is that the rock is rich in carbonate," said Katie Stack Morgan, deputy project scientist for Perseverance at NASA's Jet Propulsion Laboratory in Southern California. "Carbonate rocks on Earth can be good at preserving fossilized lifeforms. If bio signatures were present in this part of Jezero Crater, it could be a rock like this one that could very well hold their secrets."
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