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When the Perseverance rover arrived on Mars nearly five years ago, NASA officials thought the next American lander to take aim on the red planet would be taking shape by now. At the time, the leaders ...
We'll likely need to get Perseverance's samples to Earth to determine if they do indeed harbor evidence of Mars life —but the prospects of such a mission are cloudy at best.
On Earth, we can punch an address into Google Maps and be on our way in seconds. But plotting a course for NASA's Perseverance rover, 140 million miles away on Mars, is significantly more difficult.