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September 1989

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 Peculiar Pulsar in Supernova 1987A

Scientists have glimpsed an unusual pulsar in the supernova.

New Views of Mars and Phobos

The Soviet Union's short-lived Phobos mission has yielded new insights into the Red Planet and its moon.

The Colors of Neptune

The atmosphere of Neptune displays detailed structures.

A Planetary Comeback: Magellan Heads for Venus

TheUnited States has returned to the planets.

The Struggle for the Outer Planets

A "grand tour" of the outer solar system was not universally supported by scientists and politicians twenty years ago.

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