On the Cover: This dramatic Hubble Space Telescope image - the sharpest picture of Mars ever snapped from Earth or its environment - shows the beginning of a dust storms as a light brown smudge at the extreme lower right. Within weeks , the storm had expanded to engulf most of the planet.
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September/October 2001
Astronomers are using the "magic spectacles" of radar, originally developed for defense applications, to probe the hidden realms of our solar system. Radar can take us to other worlds without leaving the surface of Earth, and when needed, can travel into space to study areas that conventional telescopes can't. Learn more about it in our lead feature "Radar Astronomy."
Also in this issue: A small spacecraft filled with high-tech gizmos will wrap up its three-year journey by boldly going through a cosmic ice storm. The small NASA technology demonstrator Deep Space 1 has passed all of its tests with flying colors, and is poised for a dramatic flyby of Comet Borrelly in September.
Radar Astronomy
Star Trekking: Deep Space I
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