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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.
Seventy-five years after Edwin Hubble deduced the nature of galaxies, astronomers still debate how they form and evolve.
Black Hole Hunters
Meet the people who search the centers of galaxies for the supermassive black holes that power quasars, blazars, and the like.
A Googolplex of Galaxies
Hundreds of billions of stars form a galaxy, and 100 billion galaxies stretch across 100 billion trillion miles. When it comes to the universe, big numbers rule.
Clusters in Collision
Witness the carnage as large galaxies devour small in the packed confines of big clusters.
Let There Be Light
The early months of 1999 saw two new 8-meter telescopes join the other giants atop Mauna Kea in Hawaii.
Spirals and Giants and Dwarfs Oh My!
The spring sky offers galaxies for every observing taste, from bright sentinels in the nearby universe to colliding pinwheels and huge clusters far away.
Exploring Crater Rays
Born in the aftermath of enormous impacts, the bright lunar crater rays attest to the solar system's violent history.
Kids' Corner: Home Spiral
While the starry band of the Milky Way blazes in a dark sky, use it as a visual tool for learning about our galaxy and others.
Behind the Scenes
A Visit to The X-Files
- A Burst Like No Other
- Possible Earth-mass Planet Found
- Message in a Bottle
- Japanese Mars Probe Delayed
- Eros Revealed
- Faster than Light
- The Disks of Taurus
- View of a Supernova Remnant
- Looking for Ghosts
- SOHO Back in Business
While Mars and Venus continue to blaze in the evening sky, diminutive Pluto glows at its brightest for 1999.
- Interactive Astronomy
- Seasonal Star Hopping
- Worlds Without End: The Exploration of
Planets Known and Unknown
- The Celestial River
- Wishbone: Unleashed in Space
- 40 Nights to Knowing the Sky
- Touring the Universe Through Binoculars
Seven Hours on Mauna Kea
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