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Astronomers have for the first time caught a glimpse of the earliest stages of massive galaxy development

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Rosetta scientists narrow down locations for comet lander

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Supernova study

Chandra searches for trigger of January supernova in M82

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Midsize measurement

Confirming the existence of intermediate-mass black holes

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Uwingu Mars

Name a crater ... make an impact!

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Starmus 2014 Rocks Astronomy!

Join astronomy’s greatest minds in the Canary Islands, September 22–27, 2014. New speakers continue to be announced!

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Observing Basics

Your Eyes & Observing

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Comet close-up

Rosetta becomes the first spacecraft to rendezvous with a comet

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Astronomers have for the first time caught a glimpse of the earliest stages of massive galaxy development

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PICTURE OF THE DAYsee all »

The North America and Pelican Nebulae

The North America Nebula (NGC 7000) sits next to the Pelican Nebula (IC 5067) in the constellation Cygnus the Swan. Observers with superb vision can see the North America Nebula with their naked eyes from a dark site. (7.2-inch Takahashi E-180 F2.8 Astrograph, QHYCCD QHY23 CCD camera, Hydrogen-alpha/LRGB image with exposures of 128, 20, 20, 20, and 20 minutes, respectively)
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