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top news story
Casey Reed / NASA
Superflares from Sun-like StarsNASA's Kepler mission is finding solar-type stars that emit jaw-dropping explosions of high-energy particles and radiation. Now astronomers are looking into why some solar-type stars emit superflares — and why the Sun never will. > read more
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observing
 This Week's Sky at a Glance
Venus is sinking lower in twilight, closely accompanied by Beta Tauri, as its telescopic crescent enlarges and wanes. Venus is on its way to swinging directly between Earth and Sun on June 5th. > read more
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equipment info
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Photo Gallery
 Photo Gallery
See the latest amateur astrophotos from visitors to our online photo gallery. > read more
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