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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

September 1993

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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. 
Features
Did Mars Once Have Martians?
By Christopher P. McKay
The cold, dry Red Planet was once warm and wet - just like Earth when life formed here.
pg. 26
What Puts the Spiral in Spiral Galaxies?
By Debra Meloy Elmegreen, Bruce Elmegreen
Astronomers examining spiral galaxies are finally learning how nature creates these intricate structures.
pg. 34
Building Astronomy's Future
By Dave Bruning
Is science education in America dead? Not when dedicated teachers use astronomy in innovative programs.
pg. 40
ASTRONOMY Sky Almanac
Ptolemaeus and the Straight Wall
By Michael T. Kitt
First Quarter is the ideal time to explore two of the Moon's prettiest features.
pg. 58
Astro-Physics Refractors Big and Small
By Alan Dyer
ASTRONOMY tests a pair of 4- and 6-inch scopes that promise sharp images and sturdy mounts.
pg. 62
Exploring the South Polar Stars
By Deborah Byrd
Survey the skies of the Southern Hemisphere, where nearby galaxies, bright globulars, and rich starfields abound.
pg. 68
Seeking the Best 35mm Camera
By Alan Dyer
We examine seven 35mm cameras to find the best.
pg. 74
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