Features

The New Martian Chronicles

Although formidable obstacles need to be overcome, NASA officials are seriously talking about manned missions to Mars early in the next century.

Looking for Life on Mars

Evidence suggests that life may once have existed on Mars. Where should we search for the proof?

Gravity’s Rainbow

Einstein predicted that massive objects could bend light. Astronomers now use these gravitational lenses to probe the distant universe.

The Man Behind Hubble

Meet Robert Williams, the driving force behind the Space Telescope’s ambitious scientific mission.

Summer’s Magnificent Swan Song

The glittering Milky Way in Cygnus provides a perfect backdrop for dazzling double stars, stunning star clusters, and nebulous clouds of dust and gas.

Not Too Close

A good pair of binoculars is invaluable to anyone who watches the sky. Here’s all you need to know to make an informed purchase.

Ask Astro

The editors of ASTRONOMY answer your questions about the science and hobby.

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