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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

March 2003

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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
Will dark energy steal all the stars?
By Steve Nadis
Using powerful supercomputers as cosmic crystal balls, astronomers are peering into a future dominated by dark energy. ASTRONOMY reads our somber fortune.
pg. 42
By Peter Thomas
As planetary scientists optically dig through millions of years of layered polar ice and dust, it is becoming clear that Mars is in the process of a climatic reversal.
pg. 48
By David Helfand
One of the youngest pulsars known appears cooler and more dense than astronomers would have predicted, hinting at strange new form of matter.
pg. 54
Corvus, Crater, and Sextans
By Tom Polakis
These constellations may appear modest, but the Crow, Cup, and Sextant hold a treasure of spectacular galaxies.
pg. 75
By Daniel Troiani
The planet's best appearance in recorded history promises grand views for all backyard observers. Don't miss seeing the martian disk at its largest in your lifetime.
pg. 80
By David Healy
Not satisfied with results from your deep-sky film photography? Give CCD camers from SBIG and Starlight Xpress a chance.
pg. 84
Star-test your telescope
By Phil Harrington
A simple test can diagnose a host of maladies in your telescope's most vital organ: its optical system. Learn how to recognize the symptoms and find a cure.
pg. 88
Get up-and-go power
By Steve Edberg
The careful ergonomic engineering and user friendly control system make the Nexstar 5i and 8i telescopes a pleasure to use. In minutes, you can observe objects that would otherwise be impossible to find.
pg. 90
Focus on finders
By John Shibley
The best way to learn the sky is by star-hopping with an old-fashioned finder scope. Let's meet a few finders that are grouped by design and function and discover the right finder for you.
pg. 94
Departments
This month in Astronomy
Welcome to the new ASTRONOMY
Beautiful universe
A star's last gasp
Letters
Leonids, craters, and pillars
Interview
Jeff Hester
Bob Berman's strange universe
Space emeralds
Glenn Chaple's observing basics
This way up
News
- Nova of a new color: V838 Mon
- The age of O'Keefe
- Optically visible radio jets
- Critter search
- Canada sees Mars in future
The sky this month
Winter yields to a planet -rich spring.
Ask Astro
Sun formation, seasons in space, planetary orbits
New products
Streamline your observing with a new travelscope, a superfast computer, and other time-saving gadgets.
Book reviews
- Solar System by Nigel Hey
- Heaven and Earth by David Malin and
Katherine Roucoux
- Desktop Universe (software)
Coming events
Resources
Reader gallery
The Andromeda Galaxy, NGC 6894, The Pleiades, NGC 6357 and 6334
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