Go deeper into the stories of Astronomy magazine. These online features bring you additional research, interviews, photos, and more our editors turned up while creating the stories for this issue.
 | Find answers to questions about the number of planets in the solar system, the search for extraterrestrial life, and more.
By
David J. Eicher //
Published: January 25, 2010 |
 | Associate Editor Liz Kruesi
Published: January 25, 2010 |
 | Jim Kaler is a professor emeritus of astronomy at the University of Illinois at Urbana-Champaign and the author of 14 books.
By
Karri Ferron //
Published: January 25, 2010 |
 | Make your plans now to see an upcoming total solar eclipse.
By
Michael E. Bakich //
Published: January 25, 2010 |
 | This saturnian moon could be the Earth of the outer solar system.
By
Liz Kruesi //
Published: January 25, 2010 |
 |
Scientists using NASA's Fermi Gamma-ray Space Telescope have discovered pulsars that apparently pulse only in gamma rays.
By
Richard Talcott //
Published: January 25, 2010 |