Sky & Telescope November 2013

FEATURED ARTICLES

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The Black Widows
A mysterious group of stellar corpses resurrect themselves by sucking life from their companion stars.
By Roger W. Romani

The Most Powerful Telescope Ever Built
ALMA's cutting-edge technology promises to unveil our cosmic origins.
By Monica Young

How Often Do Bright Comets Appear?
With Comet ISON approaching, it's natural to ask how often truly great comets appear.
By Joe Rao

Amateur Space Exploration
CubeSats are paving the way for public entry into orbit.
By Tim DeBenedictus

Insight Into PixInsight
A powerful image-processing program comes of age.
By Warren Keller

BEYOND THE PRINTED PAGE

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The Great Comets of the Past Century
Will Comet ISON be one of them?
By Joe Rao

How ALMA Works Its Interferometric Magic
Read about ALMA's latest results and use interactive tools to explore how the telescope works.
By Monica Young

CubeSats on Space Patrol
A constellation of miniature telescopes will track space debris to a level not currently possible from the ground.
By Chris Palmer

Lunar Librations
Librations and other lunar data for November 2013
By Sean Walker

ALSO IN THIS ISSUE

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As Comet ISON nears...
Will it become a great comet? A pathetic dud? Or something in between?
By Alan MacRobert

Friends
Cassiopeia offers bountiful gifts to stargazers.
By Sue French

Exploring Messier 31
Backyard scopes can reveal dozens of star clusters in the Andromeda Galaxy.
By Alan Whitman

Table of Contents
See what else November's issue has to offer.