Watts Up With That?: NASA: Previously Unknown Asteroid Nearly Misses Earth today

I got this notice from NASA about a surprise asteroid that gave us only one day of warning.  It was the largest known asteroid to ever pass that close to Earth in observational history. SURPRISE ASTEROID FLYBY: With little warning, on Sunday, April 15th, a “Tunguska-class” asteroid about the size of a football field flew through…

2018-04-16 01:18


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