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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

September 1999

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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
The Beginning and the End
By Robert Naeye
Hubble captures a tangled region of newly minted stars, dusty cocoons, and a massive star ready to explode.
pg. 36
Give Peas a Chance
By Tom Yulsman
The Big Bang may have given birth to our universe, but many cosmologists are asking what started the Big Bang. Some bet it was an exotic object called a pea instanton.
pg. 38
Architects of Time
By James S. Trefil
One of humanity's first forays into measuring time, Stonehenge laid a foundation for turning the motion of Earth into the precise clocks of today.
pg. 48
The Art of Skyspeak
By Bob Berman
Quick - name that bright red star in Orion. If you said Beetlejuice instead of Betelgeuse, our handy pronunciation guide will fix you up in no time.
pg. 54
Kids' Corner: Crater Crazy
By Andrea Gianopoulos
View the wide variety of impact craters on the moon, then take a turn at making one of your own.
pg. 72
Celestial Portraits: Pisces and Cetus
By Tom Polakis
A watery realm of two fish and one whale offers backyard observers a smorgasbord of galaxies as well as a wonderful variable star.
pg. 76
Adaptive Optics Meet CCDs
By Gregory Terrance
Attention all telescope owners - there's a new imaging system that self-adjusts for sky conditions and a mount's tracking error.
pg. 84
Departments
Behind the Scenes
Astronomy's Seductions
Talking Back
AstroNews
- New Topographic Map May Explain Martian
History
- Storm Chasers Combing the Cosmos
- The Polar-Ring Galaxy
- Estimate of the Universe's Age Dips 15
Percent
- Leonid Stream Is Braided
- A Favorite Supergiant Gets Even More
Popular
- Could a Nearby Burst Scorch Earth?
Sky Show
The gas giants Jupiter and Saturn rise before midnight, and Venus grows to its most brilliant in the morning sky.
Star Stuff
Products
- Mapping the Stars and Moon
- Stargazer Steve Dob
- Laser Collimator
Books
- Measuring the Universe: Our Historic Quest
to Chart the Horizons of Space and Time
- The Five Ages of the Universe: Inside the
Physics of Eternity
Bytes
- View the Sky
Looking Ahead
Advertiser Index
Hot Shots
"That's Scorpius"
Ultimate Exposure
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