June 2004

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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

Chasing the shadow of Venus

By Ray Jayawardhana

Among the rarest of celestial events, transits of Venus have enticed generations of astronomers seeking to measure the scale of the solar system.

pg. 32

Reclaim the night sky

By Michael E. Bakich

A night sky made bright by artificial light is a fact of life for most skygazers in North America and elsewhere. Yet if backyard astronomers work with their communities, it's possible to combat this problem.

pg. 38

Genesis planet

By Ray Villard, Adolf Schaller

Astronomers are starting to think planets, and maybe even life, gained a foothold far sooner than previously believed - perhaps less than a billion years after the Big Bang.

pg. 44

Does Mars have flowing water?

By Tahirih Motazedian

Dark streaks by the thousands run down the sides of valleys and craters on the Red Planet. Planetary scientists say they're dust avalanches, but could any of the streaks be caused by water seeps or springs?

pg. 66

Viewing Venus in transit

By Michael E. Bakich

For the first time in 122 years, Earth's neighbor will cross the face of the sun. Here's all you need to know to view this exceptional event.

pg. 74

Amateur CCD discoveries

By Jack B. Newton

When the first CCD cameras for amateur astronomers were introduced in the early 1990s, great excitement followed. After a decade of imaging thousands of celestial objects, what have amateurs contributed to the science? More than you might think.

pg. 78

A visit to Mars Hill

By David Healy

The Lowell Observatory in Flagstaff, Arizona, offers something for the history buff and active observer alike. The exciting plans for the future of this observatory complement its renowned legacy.

pg. 84

Departments

This month in Astronomy

Astronomy's big, rare event

Letters

Bob Berman's strange universe

Venus puts on a show

Glenn Chaple's observing basics

Safely viewing the Venus transit

Interview

William K. Hartmann, senior scientist, Planetary Science Institute

News