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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

August 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
By Geoff Chester
During four centuries of earthbound observations, astronomers seeking detail on the Red Planet found plenty - much of it real, some of it imagined.
pg. 40
By William K. Hartmann
Tattooed with craters and gullies, this dusty planet holds secrets of a wild youth. Scientists are studying the scars to piece together Mar's active past, which may not have ended as long ago as we think.
pg. 46
By Jim Bell
With a single goal - to test the hypothesis that Mars once had an earthlike geology, climate, and maybe even biology - the Mars Exploration Rovers are set to rove NASA into a new era of planetary exploration.
pg. 52
Lupus and Norma
By Tom Polakis
Stunning star clusters, picturesque planetary nebulae, and glittering galaxies lend some of the Milky Way's sparkle to the Wolf and Carpenter's Square.
pg. 76
By Michael E. Bakich
After all the previews, build-ups, and prognostications, the time for observing Mars at its best finally has arrived. Use these helpful hints to get the most out of the time you and Mars spend at the telescope during the next few months.
pg. 80
Filtering the sky
By Phil Harrington
Get the most detail out of your sky views by using color filters. In this how-to, we introduce you to the filters best suited to your favorite planets.
pg. 86
Imaging the Red Planet
By Donald C. Parker
The great opposition is this month, and you have a brand-new CCD to take wonderful images. But do you have the know-how? One of the world's great planetary imagers details how you can produce breathtaking images with your CCD.
pg. 92
An upgraded classic
By Steve Edberg
The LXD-55 series combines classic looks with cutting-edge computer technology. Find out if this is your next purchase as ASTRONOMY field-tests a new line of Schmidt-Newtonian telescopes from Meade.
pg. 96
Departments
The sky this month
The Red Planet takes center stage
Beautiful universe
Spiral galaxy NGC 300 - big, brighrt, and nearby
Letters
Bob Berman's strange universe
Believe it or not, a humid night makes for prime Mars viewing.
Glenn Chaple's observing basics
The enduring allure of the Red Planet.
Interview
Peter Hauschildt, computational astrophysics
News
- Hot stars in nebulae
- Solar tadpoles
- Io observations
- Galaxies make wakes
- Bulgeless black hole
- Supernovae light dust
The sky this month
Mars lights up the night
Ask Astro
Earth's magnetic field, planet speeds, black hole existence
New products
- Celestron NexStar 9-1/4 GPS
- Mars globe
- STI Series IV Stiletto focuser
- Mars map
Book reviews
- Origins: The Quest for our Cosmic Roots
- Echo of the Big Bang
- On the Shoulders of Giants: The Great
Works of Physics and Astronomy
Coming events
Advertiser index
Resources
Reader gallery
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