NASA's New 'Intruder Alert' System Spots An Incoming Asteroid
A space rock zips by earth Sunday night. Astronomers know it doesn't pose a threat, in part thanks to a new automated warning program called Scout.
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at October 30, 2016 at 04:17PM
Health & Science
NPR News: NASA's New 'Intruder Alert' System Spots An Incoming Asteroid
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