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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

December 2006

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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
Does antimatter matter?
By Ray Jayawardhana
Matter edged out antimatter to make possible the universe we know. But no one yet knows how.
pg. 30
By Francis Reddy
Propelling spaceships with antimatter may be closer to reality than you think.
Zeroing in on martian water
By Alfred S. McEwen
A new orbiter will return more data than all previous missions combined to lead NASA to the Red Planet’s buried water.
pg. 36
Can we send a spacecraft to the Sun?
By David J. McComas
NASA’s proposed Solar Probe stretches technology and material science to their torrid limits.
pg. 42
By Brian Grimm
Astronomers hope a proposed mission to study the Sun becomes reality.
The Sun's biggest blasts
By Francis Reddy
Coronal mass ejections, our star's largest eruptions, shoot billions of tons of plasma into space.
pg. 60
All about the Horsehead Nebula
By Raymond Shubinski
The sky’s most famous dark nebula intrigues amateur imagers and provides astronomers clues to the nature of interstellar space.
pg. 66
How to make a lunar mosaic
By Robert Reeves
A renowned astroimager shoots the Moon using an inexpensive webcam.
pg. 74
By Laura Layton
Try these tips to create your own lunar mosaics using a webcam.
Pluto gets the boot!
By Francis Reddy
An historic vote pushes Pluto aside, but some scientists are crying foul.
pg. 78
Follow Astronomy''s coverage of Pluto, politics, and the planet paradigm.
18 must-read books for cloudy nights
By Liz Kruesi
Explore the Moon and Mars, investigate gravity, introduce yourself to the stars, and hold the universe in your hands.
pg. 82
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