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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

November 1999

Purchase this Issue
Subscribe today and save!
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
Carl Sagan's Coming of Age
By Keay Davidson
Mariner 2 proved Sagan's contention that a greenhouse effect was scorching the surface of Venus.
pg. 40
When Disaster Strikes
By Robert Zimmerman
Far from the peaceful place it seems, the universe is fraught with perils that could end life on Earth.
pg. 46
The Universe According to Arp
By Kelly Kizer Whitt
Though they may lack grand spiral arms, these oddly shaped peculiar galaxies have a charm all their own.
pg. 52
Rescuing Hubble
By Robert Naeye
Astronauts prepare to install six gyroscopes and an advanced computer to keep the Space Telescope humming along into the 21st century.
pg. 54
Are We Alone?
By David J. Eicher
Scientific conferences don't have to be dull - just get a bunch of astronomers together to talk about searching for intelligent life in the universe.
pg. 60
Adrift on the Sun
By Bonnie Bilyeu Gordon
For the first time in 26 years, North Americans can watch Mercury transit the sun's disk.
pg. 76
The Sinister Sky
By Bob Berman
Autumn evenings are the perfect time to relate bloodcurdling tales of the night sky's darker side.
pg. 82
First Light on Last Darkness
The final total solar eclipse of the 20th century dazzled viewers who managed to outmaneuver the clouds.
pg. 88
By the Light of the Moon
By Thomas Dobbins
All you need is a simple video camera to capture supercrisp images of the lunar surface.
pg. 92
Departments
Behind the Scenes
The Dangerous Sky
Talking Back
AstroNews
- Uranus May Edge Saturn in Moon Count
- Some Supernovae Flashier than Others
- Returning to Mercury
- Fuel for Fusion Power Abundant on Lunar
Maria
- Satellite Hits Lunar Crater
- Distant Planet Discovered with 1-Year Orbital
Period
Sky Show
The Leonid meteor shower appears ready to put on a great show, but it will have trouble surpassing the view of Saturn at its best of the year.
Star Stuff
Products
- High Voltage
- Nikon 7x50 OceanPro Binoculars
- SkyQuest Dobsonians
Books
- Carl Sagan: A Life
- Carl Sagan: A Life in the Cosmos
- Soaring Through the Universe
Bytes
- Pathfinder and the Best of Mars
Looking Ahead
Advertiser Index
Hot Shots
Fireballs Light Up Kansas
Ultimate Exposure
SEARCH SITE
Subscriber Only Access
Subscriber Only Content
Look for this icon. This denotes premium subscriber content. Learn more »
Become a Member of Astronomy.com
Register today for access to more valuable resource information.
Interact in our forums, comment on articles, receive our newsletter and much more!
Not a member?
Subscriber and Member Login
Password
Remember me