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.
September 2010
Jupiter
Enjoy great shots from planetary imagers we've received through the years.
By Michael E. Bakich // Published: July 26, 2010
OGLE-TR-56b
Associate Editor Liz Kruesi
Published: July 26, 2010
International Year of Astronomy 2009
You could call it "astronomy's birthday party."
By Liz Kruesi // Published: July 26, 2010
Despite the scientific advances thanks to Galaxy Zoo's simple classifications, galaxies are actually a little more complicated than that.
By Bill Andrews // Published: July 26, 2010
September 2010 WE Webb deployment
Once the James Webb Space Telescope reaches its final orbit, the complex process of deploying the massive instrument will begin.
By Richard Talcott // Published: July 26, 2010
September 2010 WE Granite Gap
One of these three sites on the Arizona-New Mexico border may be the future home of your observatory.
By Michael E. Bakich // Published: July 26, 2010
Andrew Fraknoi
Engaging students with humor can lead to a lifelong interest in the stars.
By Andrew Fraknoi // Published: July 26, 2010
September 2010 WE Garnet Star
The Red Region is a great resource for red and orangish stars, but with a whole sky to scour, it's only the beginning.
By Bill Andrews // Published: July 26, 2010
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