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The science behind tonight's brilliant meteor shower | USA NOW

What causes bright meteors to race across the night sky every year in August? Shannon Rae Green shares what NASA knows about the Perseid meteor shower.

http://www.kare11.com/video/3725225538001/1/The-science-behind-tonights-brilliant-meteor-shower--USA-NOW http://videos.usatoday.net/Brightcove2/29906170001/2014/08/29906170001_3725213834001_thumbnail-for-video-3725156619001.jpg?pubId=29906170001 The science behind tonight's brilliant meteor shower | USA NOW What causes bright meteors to race across the night sky every year in August? Shannon Rae Green shares what NASA knows about the Perseid meteor shower. vpcbestShannon Rae GreenperseidsSupermoonmeteormeteor showerkaveh rezaeiUSA NOWUSA Todayusatffcusat 01:20

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