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.
June 2005
M83
See more examples of the various galaxies found throughout the universe.
Published: April 25, 2005
Newton's Digital Rebel gallery
This gallery showcases some of Jack Newton's best work with a Canon Digital Rebel.
Published: April 25, 2005
M13
Here are more star clusters to target and additional information from the June 2005 column.
By Phil Harrington // Published: April 25, 2005
Engineers test STEREO A
During the next few years, a multitude of new spacecraft will investigate our stormy star in unprecendented detail.
By Francis Reddy // Published: April 25, 2005
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