949 results

Solar System

A New Comet Machholz

Found lurking among the dim stars of the constellation Eridanus, Don Machholz's 10th cometary find will brighten steadily in the months ahead.

Solar System

A Comet's Brush with the Sun

The SOHO spacecraft watched as a comet swung past the Sun.

Solar System

Moon Study Tracks Changes in Earth's Cloud Cover

Scientists are looking to the Moon to learn about Earth's climate change.

Solar System

Cassini Calls on Phoebe

Cassini's first rendezvous with a Saturnian moon was a date to remember.

Solar System

Storm Watch on Mars

If events of the past 30 years are an indication, there's a good chance that the Martian landscape may soon be cloaked by a major dust storm.

Solar System

Another Martian Dust Storm

Less than one month after a localized dust storm appeared on the Martian surface, another dust cloud has spring up.

Celestial News & Events

Uranus, Neptune, and Pluto in 2003

With our detailed charts, you'll be able to locate the outer planets Uranus, Neptune, and Pluto the rest of the year.

Solar System

All Eyes on Pluto

July's encounters with two 12th-magnitude stars could rewrite the textbooks on the Pluto-Charon system.

Celestial News & Events

Martian Flare Watch

Sharp-eyed amateurs have an opportunity to observe a rare phenomenon on another planet and help solve a long-standing puzzle.

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