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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

July 1990

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
The Launch of HST
By Phil Chien
In space at last! A report on the flight of the Hubble Space Telescope.
pg. 30
Seeing Sharp
By Richard Berry
With its superb optics and innovative design, the New Technology Telescope is ushering in a new era of ground-based observing.
pg. 38
Does Venus Have Active Volcanos?
By Larry W. Esposito
Evidence from space probes and Earth-based observations strongly suggests that Venus is volcanically active.
pg. 42
The Industrious Mrs. Fleming
By Joseph L. Spradley
Once a housekeeper, Williamina Fleming's efforts laid much of the groundwork in stellar astronomy.
pg. 48
ASTRONOMY Sky Almanac
How to Take a Planetary Portrait
By Mark J. Coco
With the right equipment and these tips you can capture the planets in their best poses.
pg. 62
A Journey into Darkness
By Alan Dyer
There's still time to make arrangements to see the July 1991 solar eclipse.
pg. 68
Scanning the Scutum Starcloud
By Phil Harrington
That "cloud" of stars north of Sagittarius in the summer Milky Way offers prime viewing for observers using binoculars and telescopes.
pg. 76
Departments
Behind the Scenes
Letters
Viewpoint
Bright Stars, Big Money 2001! A Mission to Pluto
AstroNews
Center of the Milky Way
Space News
Giotto Starts New Mission
Amateur News
Astronomers Against Light
Reader Reports
An Anniversary Aurora
Forum
Astronomy Books
Astronomy Products
Meetings and Events
Readings and Resources
Credits
Advertiser Index
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