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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Web Extras
Go deeper into the stories of Astronomy magazine. These online features bring you additional research, interviews, photos, and more our editors turned up while creating the stories for this issue.
March 2013
Cosmic-ray-impact
When Earth’s atmosphere encounters a subatomic particle packing 100,000 times more energy than the Large Hadron Collider can deliver, the fireworks can be impressive.
By Richard Talcott // Published: January 29, 2013
08_eclipse-sequence
November's trip to Australia was a mix of wonders both in the sky and on the ground.
By Michael E. Bakich // Published: January 28, 2013
04_cmb
As technology has advanced, so has the ability to map the cosmic microwave background in extreme detail.
By Liz Kruesi // Published: January 28, 2013
LAMOST
Find out even more about the country's astronomy efforts.
By Sarah Scoles // Published: January 28, 2013
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