FEATURED ARTICLES

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Imagining Other Worlds
Space artists help us visualize unseen worlds.
By Ker Than

Hanging in the Balance
There's a small but non-zero chance that our solar system will go haywire some time in the next few billion years
By Greg Laughlin

The Universal Jet Set
A wide variety of objects spawn high-speed beams of matter.
By C. Renée James

BEYOND THE PRINTED PAGE

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Exploring the Moon
Visit Lunar Picture of the Day, the website of our monthly lunar columnist.
By Charles A. Wood

ALSO IN THIS ISSUE

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Blazar, Blazar, Burning Bright
Find out how to observe some of the most distant and energetic objects accessible to backyard telescopes.
By Steve Gottlieb

Skyhound's Sky Tools 3
From observing lists to star charts to logging, this software promises to do it all.
By Rod Mollise

Explore Scientific's 14-mm 100° Eyepiece
Our senior editor takes a Quick Look at this new waterproof ultrawide-field eyepiece.
By Dennis di Cicco

Table of Contents
See what else April's issue has to offer.