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The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level.
How we mapped the Milky Way
After a centuries-long mystery, scientists now understand our galaxy's spiral shape. But there's more to unravel.
Seeking ground truth on Mars
Under the watchful eye of five spacecraft, the Red Planet's surface reveals weather and climate patterns and the complex history of water and ice.
Epsilon Aurigae: Astronomy's longest-running mystery show
A huge, unknown object is dimming this supergiant star's light, just as it did 27 years ago. New technology may soon tell us what it is.
Take the Ghost Hunt challenge
This Halloween season, grab your telescope and scare up these spooky objects.
Explore 12 great lunar targets
Sharpen your observing skills on the Moon's craters, lava flows, and an elusive letter X.
This Month in Astronomy
Bob Berman's Strange Universe
David H. Levy's Evening Stars
The Sky this Month
Glenn Chaple's Observing Basics
Predicting Neptune's existence.
Stephen James O'Meara's Secret Sky
The Cosmic Grid
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