Year of the Comet
Comet C/2011 L4 (PANSTARRS)

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

July 2005

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The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level. 
Features
By Jacqueline Garget
Everyone knows the Sun has nine planets. But it also has 141 moons varying from icy fragments to complex worlds with volcanoes, oceans, and atmospheres. Take a tour of the rest of the solar system.
pg. 34
Dark threat
By Bruce Dorminey
Could an unseen stellar assassin cause mass extinctions on Earth?
pg. 40
By Steve Nadis
As the universe sings, Alex Szalay listens for answers to fundamental cosmological questions.
pg. 46
An ice moon revealed
By Richard Talcott
Cassini’s first close look at Enceladus shows Titan isn’t the only Saturn moon with an atmosphere.
pg. 62
By Ian Ridpath
Set up your scope, pour a cool drink, and follow this step-by-step guide to explore the season’s best sights.
pg. 68
By Fred Espenak, Patricia Totten
On March 29, 2006, observers across eastern South America, northern Africa, and western Asia will be treated to a total solar eclipse.
pg. 72
By Alan Hale
In 1995, Hale-Bopp became history’s most observed comet. Ten years later, codiscoverer Alan Hale tells its tale.
pg. 76
Departments
This month in Astronomy
Too many moons
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Bob Berman's strange universe
Glenn Chaple's observing basics
Solar observing
Phil Harrington's binocular universe
A tail's tale
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— Medusae Fossae: the view from Mars Express
— Missing dark matter found in ellipticals?
— Spotting an alien asteroid belt
— Exoworlds: fights over first light
The sky this month
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