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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

July 2009

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
How dying stars bring new planets to life
By Ray Villard
A doomed star can awaken frozen worlds and even forge new planets out of death's debris.
pg. 22
By Richard Talcott
Astronomers have long known that planets form in dusty disks around newborn stars. Now, researchers suspect that planets also can develop in debris disks surrounding exploded stars.
Invasion of the robotic telescopes
By Daniel Pendick
Step aside, puny humans! Faster and smarter telescopes are tkaing over much of the nightly drudgery of astronomical research. Soon they may make their own discoveries.
pg. 28
By Daniel Pendick
A new generation of intelligent robotic telescopes search for planets in other solar systems.
Illustrated: Light's dual personality
By Liz Kruesi, Roen Kelly
Is light a wave or a particle? Science says both.
pg. 34
Go deep for faint nebulae with astroimager Dean Salman
By Dean Salman
A dark sky, wide-field scope, and filtered CCD camera enable this Arizona skyshooter to capture distant HII regions in the Milky Way.
pg. 46
By Michael E. Bakich
Spend some time with another dozen celestial wonders.
Explore planetary nebulae in Cygnus
By Phil Harrington
These dying stars offer colored rings, twisted filaments, and odd-shaped blobs.
pg. 52
By Phil Harrington
Scope out this constellation's dozens of dying stars.
Get ready for the great Asian eclipse
By Richard Talcott
The century's longest total solar eclipse promises to thrill those who stand in the Moon's shadow.
pg. 56
Departments
This month in Astronomy
Astro Confidential
Letters
Web Talk
Bob Berman's Strange Universe
Stephen James O'Meara's Secret Sky
Magic times on the Sun
Astro News
The Sky this Month
Ask Astro
David H. Levy's Evening Stars
Glenn Chaple's Observing Basics
Solar safety
New Products
Advertiser Index
Telescope Insider
The Cosmic Grid
Reader Gallery
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