On the Cover: Deep Impact and a slew of orbiting and ground-based observatories snapped these images of comet Tempel 1 in July. Clockwise from left: X-ray view of the comet; close-up from the probe; Tempel 1 in infrared; moment of impact; the aftermath; the big explosion seen from the Deep Impact flyby spacecraft; a fan of debris.
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September/October 2005
A growing toolkit of sensors and practices is providing today's astronomers ways to broaden our understanding of the cosmos. Read about these developments in telescope technology in our feature What Will They Think of Next?
Using nothing but your own hands and fingers, learn to measure angles, distances, and time to aid your skywatching and to measure things closer to home. Find these easy tips in our feature Angles on the Sky.
Our AstroNews column features information on NASA's successful Deep Impact mission, new planet finds, and more.
Every issue of StarDate also includes monthly star charts and stargazing highlights, plus stunning astronomical images.
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Coming Up in November/December
Learn how the chemical elements came to be, and how they are recycled and changed through generations of stars in "Chemical Universe." Celebrate the 100th anniversary of the birth of Gerard Kuiper, and look back on his discoveries about Mars and more in the first half of the twentieth century in "Solar System Sleuth."
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