Features

Making an Exceptional Impact

Planetary scientist Eugene Shoemaker helped shape our ideas about the hazards of solar system debris.

Close-up of a Comet Crash

Get ready for Deep Impact, this summer’s box-office blockbuster about a comet on a collision course with Earth and how humans react to it.

When Galaxies Were Young

In the next decade, NASA hopes to replace Hubble with a next generation space telescope: an 8-meter behemoth that will peer far deeper into the cosmos.

Cosmic Jekyll & Hyde

Astronomers viewing galaxies in the ultraviolet bring a new perspective on how these objects evolve.

A Crack in the Clockwork

Far from the stately, ordered grouping we used to think, the solar system is a hotbed of chaos where some planets may not survive forever.

Celestial Portraits: Virgo

Beginners and experts alike view the galaxy hunting in Virgo as the finest in the heavens.

Ask Astro

We answer your questions about the science and hobby of astronomy.

The Little Scope that Could

A 4-1/4-inch red ball of excitement, the Astroscan 2001 is a classic that has never gone out of style.

Easy Guide to the Sky

A few simple tricks will have you navigating your way through the night sky in no time at all.

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