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Happy Anniversary Hubble!

25 years ago, the space shuttle Discovery launched with a payload that would change how we see the universe

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Anniversary image

NASA celebrates 25 years of Hubble with Westerlund 2

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Stirring signal

Pulsing light may indicate supermassive black hole merger

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The Asteroid Threat

A detailed story about the realities of asteroid impacts, past and future, featuring the latest statistics and stunning imagery

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Getting closer!

New Horizons has captured its first color image of the Pluto system

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Uwingu Mars

Name a crater ... make an impact!

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Sign Up for Astronomy's five-part Observing Essentials email series!

Ends July 24, 2015

Not-so-dark matter?

Dark matter interactions of an unknown nature could be occurring

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Indonesian Islands Eclipse

Explore Bali and witness a total solar eclipse in March 2016 with Astronomy magazine and TravelQuest International

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Exclusive Interviews

Podcasts featuring the biggest names in astronomy

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Infant organics

Complex organic molecules discovered in infant star system

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Join Astronomy's Aurora Adventure

Experience a once-in-a-lifetime northern lights tour with Astronomy magazine and TravelQuest International

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Take the Universe with You!

Superstars of Astronomy

New podcast episode! Debra Fischer: All About Exoplanets

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Happy Anniversary Hubble!

25 years ago, the space shuttle Discovery launched with a payload that would change how we see the universe

Celebrate with us »

PICTURE OF THE DAYsee all »

An aurora plus more

The photographer said that this view made a fitting end to the nighttime observing season in the far north. Venus (the brightest object) stood just below the Pleiades (M45) star cluster. The planet’s light competed with a bright aurora and the last rays from the setting Sun. (Olympus E-PM2 digital camera, 11mm lens at f/2.5, ISO 800, 25-second exposure, taken April 10, 2015, from Skellefteå, Sweden)
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