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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

October 1992

Purchase this Issue
Subscribe today and save!
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
Listening for Life
By Seth Shostak
This month, NASA begins the biggest search for extraterrestrial life ever attempted.
pg. 26
Demon Variables
By Dirk Terrell
Some pairs of stars orbit so close to each other that one star loses mass to its companion.
pg. 34
Life on a Metal-Poor Earth
By Neil F. Comins
What would life be like if Earth had been created when the Galaxy was young?
pg. 40
ASTRONOMY Sky Almanac
Lovely Late Luna
By John Sanford
The most memorable views of the Moon come when you stay up late or get up early.
pg. 56
A Tale of Two Eclipses
By Richard Talcott
In June, eclipse watchers experienced two alignments of the Sun, Earth, and Moon.
pg. 62
Selecting the Right Slide Film
By Alan Dyer
We test two dozen slide films and pick the best for astrophotography.
pg. 68
Exploring our Galactic Neighbors
By Edmund A. Fortier
Here's how to find six elusive stars close to our solar system.
pg. 76
Departments
Behind the Scenes
Letters
Viewpoint
A Forgotten Astronomer
AstroNews
Dirty Ices Found Around Beta Pictoris
Space News
Russian Rover Tours Death Valley
Amateur News
Crowds Throng UNIVERSE 92
Reader Reports
A Warm Glow on Summer Nights
Astronomy Books
AstroBytes
Imagine-32
New Astronomy Products
Meetings and Events
Readings and Credits
Advertiser Index
SEARCH SITE
Subscriber Only Access
Subscriber Only Content
Look for this icon. This denotes premium subscriber content. Learn more »
Become a Member of Astronomy.com
Register today for access to more valuable resource information.
Interact in our forums, comment on articles, receive our newsletter and much more!
Not a member?
Subscriber and Member Login
Password
Remember me