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Photos: Light Pollution Around the WorldBecause of light pollution, when clouds roll in at night, cities brighten instead of growing darker, researchers find. Here are photos of the artificial nighttime glow.
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Astronomical Find: Ancient Greek Wine Cup May Show ConstellationsLong thought to show a random assortment of animals, an ancient two-handled wine cup may actually show one of the earliest depictions of Greek constellations.
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Stars Sparkle Like Diamonds in Space Scorpion Tail (Photo, Video)A new image of M7 shows stars shining like diamonds in the tail of Scorpius. The star cluster is about 200 million years old and a part of its population are expected to explode as supernovas.
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'Demon Star' Glowers in Night Sky This WeekThe blinking star Algol is actually a pair of eclipsing stars.
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How to See a Cosmic Bunny and Dove in Night SkyThe winter night sky offers a chance to view underappreciated constellations.
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Celestial Soap Opera Shines in Night Sky This WeekStargazers can catch the constellations of Cassiopeia, Cepheus and Andromeda overhead this week.
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Moon, Jupiter and Bright Star Show Off in Night Sky This WeekLook up to see celestial wonders this week.
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The Night Sky in Transition: From Summer to FallThe night sky's autumn constellations follow the summer stars so closely they can be seen well before the air gets chilly.
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Celestial Dolphin and Whale Swim Through Night Sky This WeekDelphinus the dolphin and Cetus the whale are on view now.
