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top news story
Science / AAAS
Mercury: The Incredible Shrinking PlanetDuring its first flyby of Mercury, NASA"s Messenger spacecraft found much less iron on the planet’s surface than expected and a cloud of ionized atoms — including water — caught up in the planet’s magnetosphere. And that’s just for starters. > read more
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observing
 This Week's Sky at a Glance
Last week Mars paired up with Regulus; this week it moves over and pairs up equally closely with Saturn. Watch them change configurations from day to day. Meanwhile, bright Jupiter shines low in the southeast at dusk and climbs higher into better view as the night grows late. > read more
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equipment info
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Photo Gallery
 Photo Gallery
Here we showcase amateur astrophotos from visitors to our online photo gallery. > read more
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community
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WORLDWIDE TELESCOPE
Join our WorldWide Telescope community. Download interactive star-hop tours, upload your astrophotos, and more. > join today
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LET'S GO STARGAZING!
Astronomy doesn’t have to be hard! Inside here are articles for stargazers of all ages — in clear, easy-to-understand language. > read more
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SkyandTelescope.com's Free E-newsletters
Weekly Bulletin
A roundup of the week's astronomy and sky news. AstroAlert Our e-mail rapid-response system for advanced amateur astronomers; as events warrant. |
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Sky & Telescope, Night Sky, and SkyandTelescope.com are registered trademarks of New Track Media
