Phenomena of Jupiter's Moons
Virtually any telescope will show Jupiter's four Galilean satellites and their interesting interactions with the planet or its shadow.

Jupiter: The Ultimate Observing Guide
Viewing the solar system¹s largest planet can be more than fun — even with a modest telescope, you can make observations of lasting scientific value.
The Transit of Venus: Where to See It
For the first time since 1882, Venus will glide across the face of the Sun. Here's where you'll be able to watch this rare event on June 8, 2004.
Venus at Its Best
Venus is readily visible in the evening sky until late May during this most favorable apparition of its eight-year cycle.
Dust Storm on Mars
A large regional dust storm has enveloped several thousand square kilometers of the red planet and shows no signs of abating.
Mercury Transits the Sun
When this innermost planet passes between the Earth and the Sun on May 7th, it will appear as a tiny black "sunspot" in small telescopes.
Jupiter's Moon Dances
Every six years, for a few months at a time, Jupiter's satellites engage in a wonderful variety of alignments. They're starting up again.
An Observer's Guide to Mars
In 2001 the red planet swung closer to Earth than it had since 1988. It'll be even better in 2003. Here's an observer's guide from the 2001 opposition to whet your appetite for 2003.
Mercury Transit Tales
Mostly clear skies in Europe, the Far East, and Australia meant that many amateurs were able to view this rare event.
Viewing Mercury at Its Best
Fast-moving Mercury can be elusive. But spotting this sparkling little planet is easy if you know where and when to look.
Mars Glides Between Two Nebulae
During the predawn hours of March 5th and 6th, watch as Mars glides between a close pair of nebulae — the Lagoon (M8) and the Trifid (M20).