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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Vineyards in the Mosel Valley, Rhineland-Palatinate, Germany
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Kiteboarding and windsurfing in Croatia
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Alaska National Interest Lands Conservation Act anniversary
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In the footsteps of Leopold Bloom
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Glacier cave in Iceland
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To Roswell, and beyond!
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Day of the Dead
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Autumn in Piedmont
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A rock in a wild place
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Megalong Valley, Blue Mountains National Park, Australia
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Midwinter freeze
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Skógafoss waterfall, Iceland
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Mesmerizing murmuration
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Yellowstone for the National Park Services birthday
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Friendship Day
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Making it work—in Norway
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World Honey Bee Day
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Winter solstice
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Fiesta at Siesta
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Twas a night just like tonight
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Nha Phu Bay, Nha Trang, Vietnam
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How do ladybugs winter?
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Brown pelican, San Diego, California
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Summer solstice
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Happy Fat Tuesday!
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North Cascades National Park at 50
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Design for Each and All
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International Day for Biological Diversity
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Racing toward history
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Can you see the family resemblance?
Bing Wallpaper Gallery

