NASA says its plan to bring Mars samples back to Earth is safe, but some people are worried

Published by
The Philadelphia Inquirer

PHILADELPHIA — Since September, the Perseverance rover has been picking along an ancient river delta on Mars, its robotic arms reaching out with whirling steel drill bits to core rocks, scoop soil and suck small amounts of the red planet’s atmosphere into titanium tubes. The plan, under NASA’s Jet Propulsion Laboratory, calls for a sci-fi symphony of technology that includes launching another vehicle to Mars to bring the unsterilized samples back to Earth, drop land the samples in Utah, and shuttle them to a yet-to-be built secure facility by 2033. There scientists will start testing for signs…

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