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