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Our nights are brighter, and brighter The International Dark-Sky Association has campaigned for decades to reduce artificial light at night. Yet a new study shows our night skies still brightening at a rate of 2 percent each year.
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Mysterious Booms Heard In Colorado Leave Residents Baffled A series of mysterious boom-like noise, which has been heard in various parts of the United States, has left both residents and authorities baffled.
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Flowing sand, not water, left 'dark streaks' on Mars Granular flows—grains of sand and dust slipping downhill—may have caused the "dark steaks" on Mars, which had been considered evidence for flowing water on the red planet.
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