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.
November 2006
M31
Use these print out finder charts for the season's best galaxies.
By Michael E. Bakich // Published: September 22, 2006
Glimpse of a magnetar
A neutron star's massive 2004 outburst is giving astronomers an inside view on these superdense objects.
By Francis Reddy // Published: September 22, 2006
Leonid flare
Enjoy this meteor shower all year by snapping some photos.
By Laura Layton // Published: September 22, 2006
Mars Science Laboratory
Planetary scientists have big ideas for studying Mars. Here's what NASA has in store.
By Bruce Moomaw // Published: September 22, 2006
Terry Alford's binocular mount
Take a closer look at the innovative mount mentioned in this month's column.
By Phil Harrington // Published: September 22, 2006
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