What must our ancestors have thought when they saw meteors light up the night sky? Was it terrifying or an event of wonder? Thankfully, we now know that this celestial cascade is a harmless annual event. The Perseid meteor shower thrills stargazers from mid-July to late August and is due to peak today. The Perseids are caused by Earth passing through debris left behind by the Comet Swift-Tuttle. When the cosmic debris hits our atmosphere, it disintegrates in a colorful, fiery light display. It"s a good night to catch the Perseids if you can—the moon is projected to only be 10% illuminated, so the meteors should really stand out against the dark sky.
Perseid meteor shower over Oregon
Today in History
More Desktop Wallpapers:
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Composite image of a lunar eclipse
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St. James Tidal Pool, Cape Town, South Africa
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When Death Valley blew its top
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Just another day in paradise
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Paleontology meets art
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King of the dinosaurs
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Global commerce in motion
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Happy 800th, Salisbury Cathedral
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Preservation Hall in New Orleans, Louisiana
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Surf s up—Down Under
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Giving Tuesday
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Is that a smile?
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Sunny day, sweepin the clouds away
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Iceland awaits the Yule Lads
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Swimming into the season
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In search of roadside attractions on ‘America’s Highway’
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Tortula moss, Netherlands
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Finnish Independence Day
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Grizzly bears in Alaska for National Wildlife Day
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Lights, camera, Sundance
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A valley view at 9,000 feet
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Jeju Island, South Korea
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North Cascades National Park at 50
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Sailing across the ice
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Our Lady of the Rocks
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Floating temples in the Land of Smiles
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Kochelsee in Bavaria
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The Belogradchik Rocks in Bulgaria
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An island hopper s paradise
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Last stop before leaving the solar system
Bing Wallpaper Gallery

