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| | | EarthSky's meteor shower guide for 2017 | | | This year's Perseid shower is drowned in moonlight. Next best opportunity for meteor-watching is now to early August. Watch between midnight and dawn, when the moon is down. | | | | Fire ants build with no master plan | | | Researchers identified simple behavioral rules that allow these tiny creatures to collaboratively build elaborate structures - rafts and towers - with no one in charge. | | | | | | | |
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|  | | | Before dawn Thursday … Moon and Venus | | Did you see 'em Wednesday morning? Before the sun rises Thursday, the moon and Venus will be close and the 2 brightest objects in the sky. | | | | | |
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 | | | The day Earth smiled | | A mosaic of people on Earth waving at Saturn on July 19, 2013, the day Earth smiled. NASA called it "a global moment of cosmic self-awareness." | | | | |
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