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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

December 2010

December 2010
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
Astronomy magazine's Sky Guide 2011
By Martin Ratcliffe and Richard Talcott
Bright planets, streaking meteors, and total eclipses of the Moon highlight an exceptional observing year.
How stars form
By Liz Kruesi

Stars begin as clouds of cold gas that transform into blazing hot fireballs. Here's what scientists know about the process - and what they're missing.

pg. 26
By Liz Kruesi

Now that you've read how stars form, check out what's going on inside them.

What's the Sun made of?
By Jim B. Kaler

By analyzing the Sun's light, astronomers are learning about not only our star's makeup, but also the early solar system.

pg. 30
By Bill Andrews

Now that you've read about our star's composition, watch its roiling surface in action from the comfort of your own computer.

How five doomed missions triumphed in the end
By Richard Talcott
Like the mythic Phoenix, these spacecraft rose from the ashes of near-certain failure.
pg. 44
By Richard Talcott

In December 1993, astronauts aboard the space shuttle Endeavour successfully repaired the Hubble Space Telescope, turning the observatory into the science machine it remains today.

See the nearest stars
By Michael E. Bakich, Anthony Ayiomamatis

The stars next door are fun to hunt, easy to spot, and can teach you about astrophysics.

pg. 52
By Michael E. Bakich

Here's the complete list for your observing pleasure.

By Tony Hallas

The new CDK17 telescope offers thermal stability, ease of use, and killer images.

pg. 56
Columns
Bob Berman's Strnage Universe
Glen Chaple's Observing Basics
By Glenn Chaple
Stephen James O'Meara's Secret Sky
stephen_james_o_meara_new
By Stephen James O'Meara
David H. Levys Evening Stars
David Hl Levy
By David H. Levy
Tony Hallas' Imaging the Cosmos
In Every Issue
This Month in Astronomy
Astronomy and Discover now sister magazines.
Astro Confidential
Letters

Close to home

Web Talk
Astro News
Star's mass inidcates it should have been black hole.
Two more for Kepler.
Is the Moon shrinking?
The Cosmic Grid
New Products
Advertiser Index
Deep-sky Showcase
Reaer 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