Sky & Telescope October 2009

FEATURED ARTICLES

Prelude to Disaster
In 2006 RS Ophiuchi produced a powerful nova eruption. However, a much bigger explosion may be coming soon.
By Sumner Starrfield, Mike Bode, & Tim O'Brien

The New Habitable Zones
Microbes could thrive in all sorts of "impossible" places on other worlds.
By Chris Impey

Sky-Watcher's Newest Apo Refractor
Don't be fooled by its modest cost; this 120-mm apo delivers images on par with premium-priced.instruments.
By Dennis di Cicco

BEYOND THE PRINTED PAGE

The Celestron FirstScope
Read the author's tips for using this amazing new $50 telescope.
By Dennis di Cicco

ALSO IN THIS ISSUE

Become a Super Amateur
In November 2008, 14-year-old Caroline Moore discovered a supernova. Read about the important science that other amateur astronomers are doing.
By Robert Zimmerman

Imaging Elusive Mercury
Capturing the closest planet to the Sun takes dedication and a few creative tricks.
By John Baudreau

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