How Time Flies: Perseverance and Ingenuity Have Been on Mars for a Year - A look back and ahead, by Nancy_A
What a year it’s been — Earth year, that is!
“The samples Perseverance has been collecting will provide a key chronology for the formation of Jezero Crater,” said Thomas Zurbuchen, associate administrator of NASA’s Science Mission Directorate in Washington. “Each one is carefully considered for its scientific value.” “Right now, we take what we know about the age of impact craters on the Moon and extrapolate that to Mars,” said Katie Stack Morgan, Perseverance’s deputy project scientist at NASA’s Jet Propulsion Laboratory in Southern California, which manages the rover mission. “Bringing back a sample from this heavily cratered surface in Jezero could provide a tie-point to calibrate the Mars crater dating system independently, instead of relying solely on the lunar one.
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