Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

WELCOME
Easy-to-find objects in the 2013 summer sky
August 2013 Perseid meteor shower finder chart
Senior Editor Richard Talcott describes the various planetary conjunctions, the best meteor shower of the year, and the constellations of the Summer Milky Way to seek out this season. Watch now »
Astronomy 101: Gamma-ray bursts
Hypernova gamma-ray burst illustration
In this new video, Associate Editor Sarah Scoles explores the brightest events in the universe. Watch now »
Liz & Sarah's Cosmic Adventures: The dark universe
CA-Episode-21
In this episode, Associate Editors Liz Kruesi and Sarah Scoles describe the composition of the cosmos — with a little help from demos. Watch now »
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Web Extras for Magazine Subscribers
Go deeper into the stories of Astronomy magazine. These online features bring you additional research, interviews, photos, and more our editors turned up while creating the stories for this issue.
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Earth fate
A marauding near-Earth asteroid could spell doom for civilization long before the Sun starts to bake us a billion or so years from now. As intellectual exercises, however, both fates are worth pondering.
03_Frebel
Ten young astronomers describe what sparked their interest in the science and what they love most about their jobs today.
05_NGC1068
The universe abounds with active central supermassive black holes.
 
Oberwerk BT-70-45 Binocular Telescope
It should be no secret that I love big binoculars. Viewing the universe wit... Read more
Vixen GPD2 German equatorial mount
If you've read any of my columns in Astronomy, you know that I do a lot of ... Read more
Orion 2" Low-Profile Dual-Speed Hybrid Reflector Focuser
Orion's 2" Low-Profile Dual-Speed Hybrid Reflector Focuser uses a special g... Read more.
 
scorpius
June 13–20, 2013: Ptolemy's Cluster (M7) in Scorpius is an excellent target for naked-eye and binocular observers, globular cluster M14 in Ophiuchus offers small-telescope owners nice views, and large-telescope owners can seek out the Draco Dwarf (UGC 10822) in Draco. Read more.
Online Poll
If you were a professional astronomer, what area of research would you study?







 
Astronomy PLUS Features
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Map stars, comets, asteroids, and more for your location

Zoom through 45,000 stars on 24 interactive maps

July: A pair of close encounters

 

Expert observers help you make the most out of the sky

Astronomy answers your questions
Go deeper into the stories printed in Astronomy
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Comet ISON - The definitive guide to what, when, where, and how!

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From unexpected water levels on the lunar surface to recent discoveries about comets and asteroids, you’ll find exciting science results in Explore the Solar System!

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See 50 of the world's great scopes!

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Discover Decades of Valuable Data on DVD.

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