Now that the September 2009 issue of
Astronomy is in-hand (or will be shortly), we’ve updated Astronomy.com with our
newest web extras to give subscribers exclusive complementary information to the issue.
Take a
sneak peek inside the September 2009 Astronomy magazine.
If you subscribe to
Astronomy, make sure you’re
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Here are this issue's highlights:
Senior Editor Michael Bakich posts all images submitted to
Astronomy’s 2009 Astroimaging Contest in “
Imagers capture the sky.”
Associate Editor Daniel Pendick explores how ammonia, silicon, and hydrocarbons could theoretically support life in “
Alternative chemistries for life.”
Associate Editor Daniel Pendick explains the uncertain effects of long-term exposure to space radiation and low gravity in “
What are the health risks of a Mars mission?”
Associate Editor Liz Kruesi shares a simulation showing how merging galaxies can fling stars to hypervelocities in “
Getting a kick out of merging.”
Senior Editor Richard Talcott helps you observe the extraordinary star Delta (δ) Cephei in “
Track down the original Cepheid variable.”
Associate Editor Daniel Pendick answers the “Ask Astro” question: “
What is the nearest star to the Sun?”
And I’ve included an
extended Q&A with Andrea Dupree in “Astro Confidential: Extending the conversations.”
Of course, we’ve also posted “Bob Berman’s Strange Universe,” “Glenn Chaple’s Observing Basics,” “Stephen James O’Meara’s Secret Sky,” and “David Levy’s Evening Stars.” There’s also August’s “The Sky this Month” and five “Ask Astro” questions.