NPR News: NASA's New 'Intruder Alert' System Spots An Incoming Asteroid

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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Làm đẹp Blog 247 October 30, 2016 at 04:17PM
Category Health & Science