Why did rocks from the Mars Perseverance rover surprise scientists?
Rocks collected by the Mars rover could help scientists figure out if Mars could support life and, if so, when.
NASA’s Perseverance Mars rover took this selfie near rock nicknamed “Rochette,” found on Jezero Crater’s floor, on Sept. 10, 2021, the 198th Martian day, or sol, of the mission.(photo credit: NASA/JPL-Caltech/MSSS)Updated: 
