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Double trouble

Hubble finds that the nearest quasar, the brilliant core of an active galaxy, is powered by a double black hole

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Hubble at 25

How the space telescope changed the cosmos

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Radio phoenix

A faded electron cloud comes back to life after galaxy collision

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Year of Pluto

Revelations of a distant world

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Two is better than one

The remarkable complexity of the bipolar Twin Jet Nebula

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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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Icy exploration

NASA’s next big spacecraft mission could visit an ice giant

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New episode every other week!

Turn on your mind to what's really going on in the universe

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Sharper scenes

Dawn reveals exciting new views from Ceres

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Uwingu Mars

Name a crater ... make an impact!

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Exclusive podcast series

Editor David J. Eicher conducts extensive interviews with the world's top astrophysicists, planetary scientists, and cosmologists

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Take the Universe With You!

New episode!

Seth Shostak: Life in the universe

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Double trouble

Hubble finds that the nearest quasar, the brilliant core of an active galaxy, is powered by a double black hole

Learn more »

PICTURE OF THE DAYsee all »

The Cocoon Nebula

The Cocoon Nebula (IC 5146) is a combination emission and reflection nebula in the constellation Cygnus the Swan. It lies about 4,000 light-years away, and the central star that lights it formed about 100,000 years ago. The nebula spans some 15 light-years. (8-inch TPO Telescopes Ritchey-Chrétien reflector at f/8, SBIG ST-10XME CCD camera, LRGB image with six 10-minute exposures through each filter)
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