September
2009
|
Astronomy magazine
Subscribe today and save!
The world's best-selling astronomy magazine offers you the most exciting, visually stunning, and timely coverage of the heavens above. Each monthly issue includes expert science reporting, vivid color photography, complete sky coverage, spot-on observing tips, informative telescope reviews, and much more! All this in an easy-to-understand, user-friendly style that's perfect for astronomers at any level. Subscribe now online and get Astronomy delivered to your door. |
Features
The day Earth came to life
At some point in the dim past, non-living matter started to replicate itself. Scientists are still trying to figure out how.
By James Trefil and Wanda O'Brien-Trefil
Ammonia, silicon, and hydrocarbons can theoretically support life.
By Daniel Pendick
What revved up the galaxy's hyperfast stars?
Since 2003 astronomers have found 16 stars escaping the Milky Way's gravity. The slingshot could be our galaxy's central black hole.
By Ray Jayawardhana
A simulation shows how merging galaxies can fling stars to hypervelocities.
By Liz Kruesi
A new day dawns for Hubble
Shuttle astronauts installed two new instruments, fixed two older ones, and upgraded the space telescope's gyroscopes and batteries.
By Richard Talcott
The stars that revealed the vastness of the universe
Cepheids are pulsating variable stars that astronomers use to measure cosmic distances. They remain at the heart of solving key cosmic riddles.
By Bruce Dorminey
The first known Cepheid variable star lies in the southeastern corner of Cepheus the King. Here's how to find it.
By Richard Talcott
Astronomy's 2009 Astroimaging Contest
Amateurs accepted the challenge and sent us these dazzling images.
By Michael E. Bakich
See all the entries of the 2009 Astroimaging Contest.
By Michael E. Bakich
10 tips for beginning astroimagers
Use these techniques to produce celestial images you'll be proud to share with friends and relatives.
By Michael E. Bakich
Departments
This month in Astronomy
Astro Confidential
Letters
Web Talk
Bob Berman's Strange Universe
David H. Levy's Evening Stars
Astro News
The Sky this Month
Ask Astro
Stephen James O'Meara's Secret Sky
Glenn Chaple's Observing Basics
New Products
Telescope Insider
Advertiser Index
Reader gallery
Deep-sky Showcase
The Cosmic Grid
