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.
 | A timeline of events and discoveries since 1980
Published: July 29, 2002 |
A Cosmos video clip depicts what life in the atmosphere of a gas giant planet might look like.
Published: July 26, 2002 |
 | Make your own estimate for the number of communicative civilizations in the Milky Way.
Published: July 26, 2002 |