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
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Rays on parade
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Aït Benhaddou, Morocco
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Porcupine
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The island fox’s incredible comeback
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National Park Service Founders Day
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The power of the forest
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Panda Day
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Grand finish of Le Tour
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Presidents Day in America’s front yard
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Marine Day, Japan
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Kagami-ike, Nagano, Japan
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World Childrens Day
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Henningsvær Stadion, Norway
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Its Halfway Day!
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World Migratory Bird Day
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Freeze frame
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Here there be dragons
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Glacial spires in the fog
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Tolkien Reading Day
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Bringing the moon to Earth
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Saksun, Faroe Islands, Denmark
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Big sky at Big Bend
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Into the woods
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Bournemouth beach huts
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World Lizard Day
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Belize Barrier Reef
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Yellow-eyed penguins, Moeraki, New Zealand
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Happy Father s Day
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Petrified Forest National Park
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Gray seal sleeping on the beach, Orkney Islands, Scotland
Bing Wallpaper Gallery

