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

PANSTARRS information

Comet C/2012 S1 (ISON)

ISON information

Issues

July 2004

July 2004
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
By Robert Pappalardo
The icy surfaces of Europa, Ganymede, and Callisto shroud oceans of liquid water, and one of these could harbor life within its depths.
pg. 34
By Paul D. Spudis
The label "double planet," which often is applied to Earth and the Moon, carries some ironies. The pair that exists today is the result of a gigantic collision between a different, earlier "double planet" pair.
pg. 42
By Ray Villard
A television show more than thirty years after the fact did not disprove that we landed six pairs of astronauts on the Moon. Most Americans believe that statement. Still, you may be interested in how we can prove it.
pg. 48
By Frank Sietzen, Jr.
Astronomers using the Hubble Space Telescope's Advanced Camera for Surveys have taken the deepest visible-light image ever, capturing thousands of galaxies out to the edge of the universe.
pg. 70
By Andrew Fazekas
Imagine having a ringside seat at the most magnificent cosmic events; space artists provide such a vantage point, allowing anyone to take vicarious journeys through the universe.
pg. 78
Touchdown at Tranquillity
By Robert Burnham
This month, we celebrate the 35th landing of Apollo II on the Moon. So dust off your telescope and follow along as we take a detailed look at Tranquillity Base and its surroundings.
pg. 82
A visit to the planetarium
By Michael E. Bakich
A universe of wonder under a dome near you, a planetarium brings much more than the night sky to visitors. Get a behind-the-screens look at planetaria and see where the field is headed.
pg. 84
Star power
By Steve Edberg
The largest telescope manufacturer continues to improve one of its most popular products. How good can this telescope get? You're about to find out.
pg. 88
Departments
This month in Astronomy
Is there life under the ice?
Letters
Bob Berman's strange universe
Cosmological chaos
Glenn Chaple's observing basics
Clubbin' astro-style
Interview
Ed Weiler, associate administrator for space science, NASA
News
— Seeing stars like sand
— Cassini/Huygens zero in on Saturn
— Sun's stellar neighbors run wild
— Microlensing finds a new planet
— Spiral canyons on Mars
The sky this month
Marvelous night for a moondance
Ask Astro
Of time and space, the lowdown on space dust
New products
— ScopeTronix MaxView DSLR
— LPI's "Consolidated Lunar Atlas"
— SmartAstronomy's SmartCase
— Family ASTRO's "Moon Mission"
Book reviews
— The Modern Moon: A Personal View
— Sky Vistas
— Strange Universe
Coming events
Advertiser index
Resources
Reader gallery
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