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.
January 2007
FITS Liberator
Embed astronomy-specific information into your astroimages using the FITS Liberator plug-in for Photoshop.
By Robert Hurt, Lars Lindberg // Published: November 22, 2006
Crab Nebula
Scientists watch this fascinating object change over time.
By Michael E. Bakich // Published: November 22, 2006
Winter roost
When scientists have the time, they can create beautiful pictures.
Published: November 22, 2006
Comet Wild 2
Scientists aren't done with NASA's Stardust probe quite yet.
By Francis Reddy // Published: November 22, 2006
Camelopardalis
Of all the northern circumpolar constellations, Camelopardalis is certainly the least distinct.
By Phil Harrington // Published: November 22, 2006
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