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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.
The history of astronomy is chock full of defining moments. Here are 25 that have changed the way we see the universe.
Louis Frank believes that 25,000 house-sized comets smash into Earth's atmosphere every day, but many astronomers think this is folly.
Solar System Redeux
Far from the stately arena we once thought, our home system bristles with rogue comets and other dangers.
Outsmarting the Early Universe
Pioneering a technique to find distant galaxies, Chuck Steidel hopes to learn how the cosmos evolved.
Blowin' in the Solar Wind
Massive solar storms can wreak havoc on satellites in orbit, humans in space, and on Earth itself.
Celestial Portraits: Aquarius
For the galaxy lover in all of us, Aquarius and Piscis Austrinus offer great hunting for the backyard observer.
Sunny Skies and Starry Nights
Escape winter's cold and head to the Florida Keys, where warm breezes and great observing await.
Dome Sweet Dome
The frozen lava of the moon's maria is just the tip of the lunar volcanism iceberg.
We answer your questions about the sky and the universe.
Behind the Scenes
- Two New Planets Revealed
- SOHO, Phone Home
- Martian Dust Devils Imaged
- Blasting Asteroids
- Plasma Loops on the Sun
- White Ovals Come Together
- First Light for Deep-Sky Survey
- A New Class of Star
- Rosetta Stone
Bright planets dominate the night, but you shouldn't miss a pair of meteor showers or the return of Comet Giacobini-Zinner.
- Overhead Skies: A Teaching Planisphere
- X-Y Micro-Slides
- Paramount GT-1100 Robotic Telescope
- The Little Book of the Big Bang: A Cosmic
- Moon Missions: Mankind's First Voyage to
- Mercury CD-ROM
On the Go in South America
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