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.
February 2012
01_M45_Block

You don’t need a telescope to observe these cold weather wonders.

By Phil Harrington // Published: December 27, 2011
IMG_8146
An amazing trip brought a group of 15 back to the era of the astronomy greats Tycho Brahe and Johannes Kepler.
By David J. Eicher // Published: December 27, 2011
Space shuttle Atlantis
Witness for yourself some of the more memorable moments of the United States' space program.
By Bill Andrews // Published: December 27, 2011
QPE0761
Count down the Astronomy editor's favorite songs from Astronomy Editorial Advisory Board member Brian May's legendary rock group, Queen.
By David J. Eicher // Published: December 27, 2011
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