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Complex comet

Rosetta is revealing Comet 67P as having a remarkable array of surface features and with many processes contributing to its activity

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Take the Universe with you!

Year of Light

Chandra celebrates observing across multiple wavelengths

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New podcast series!

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

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Tucson Public Star Party

Join the skywatching festivities February 14!

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Signal clues

Are two supermassive black holes in the final phases of a merger?

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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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Out-of-this-world Award

Your 2014 outreach efforts could earn your astronomy club $2,500!

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Gas gorging

NuSTAR has pinpointed the true monster of a galactic mashup

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

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Sign up for bonus web features and get a free gift!

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Bubble studies

Hubble uncovers traits of the Milky Way's mysterious Fermi bubbles

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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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New view

Hubble captures new high-def versions of the "Pillars of Creation"

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Uwingu Mars

Name a crater ... make an impact!

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Complex comet

Rosetta is revealing Comet 67P as having a remarkable array of surface features and with many processes contributing to its activity

Learn more »

PICTURE OF THE DAYsee all »

Hind’s Variable Nebula

Hind’s Variable Nebula (NGC 1555) is a reflection nebula famous for its brightness changes. The variable star that illuminates it (and the reason for the variances) is T Tauri. (4-inch Takahashi FSQ-106EDX refractor at f/5, Quantum Scientific Instruments QSI 683wsg CCD camera, LRGB image with 27 hours of exposure time)
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