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.
May 2001
Orion Nebula (M42)
Move over, CCDs — old-fashioned film isn't dead yet.
By Robert Reeves // Published: May 15, 2001
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