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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

July 1997

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
Inflating the Cosmos
By Timothy Ferris
Cosmologists believe that the universe grew at a phenomenal rate in the instant just after the Big Bang.
pg. 38
Ka-Boom! How Stars Explode
By Robert Naeye
For decades astronomers tried to decipher exactly how stars explode. Now recent models suggest neutrinos provide the missing kick to nature's most violent events.
pg. 44
Observer of the Gas Giants
By Ruth Flanagan
Planetary scientist Heidi Hammel revels in the surprisingly dynamic atmospheres of the outer planets.
pg. 50
Something Instead of Nothing
By James S. Trefil
How did the universe arise out of the nothingness that preceded the Big Bang?
pg. 56
Before Galaxies Were Galaxies
By William Keel
By searching deep into the cosmos, astronomers may soon understand how galaxies formed.
pg. 58
Dusty Infant Stars: A Fine Sight
By Edmund A. Fortier
Nearby open star clusters, such as the Pleiades, Hyades, and much of the Big Dipper, offer a visual treat even when seen with little or no optical aid.
pg. 78
Celestron's Big Bad Cat
By John Shibley
This 9-1/4-inch Schmidt-Cassegrain telescope provides a large aperture in a portable package.
pg. 82
Ask Astro
By James B. Kaler
A leading astronomer answers your questions.
pg. 86
Observing Perek-Kohoutek Planetaries
By Tom Johnston
Although they aren't the brightest objects in the sky, these softly glowing planetary nebulae make fine targets for big telescopes.
pg. 96
Stargazing at Kitt Peak
By Tom Polakis
America's national observatory opens its doors to amateurs wanting to observe from their premier site.
pg. 100
Departments
Behind the Scenes
About Our Facelift
Letters
AstroForum
AstroNews
- Hubble: A Weather Satellite for Mars
- An Ocean on Jupiter's Moon Europa?
- Smoking Gun for a Gamma-Ray Burst?
- The First Intergalactic Stars
- SOHO Views the Sun
- A Global View of Io
- Dusty Disk Found around Binary Star
- Hubble Solves Procyon Mystery
- Galileo to Keep Flying
- Closeup of Supernova Remnant
- High-Resolution Optical Images
- Quasars Surrounded by Normal Galaxies
Astronomy Books
- The Whole Shebang: A
State-of-the-Universe(s) Report
- Time Travel
- Space Travel
AstroBytes
- The Earth Centered Universe, Version 3.0
- Planet Watch Pro
Meetings and Events
Resources & Photofacts
New Products
Modularized Dobsonians
Advertiser Index
Reader Reports
Ultimate Exposure
Sky Almanac
Uranus and Neptune shine at their brightest this month, which also sees several mutual events among Jupiter's moons.
Hot Shots
Hale-Bopp's Special Delivery
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