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.
 | At 24 and with no formal education in astronomy, Clyde William Tombaugh set out to find "Planet X."
By
S. Alan Stern //
Published: March 23, 2002 |
 | Astronomers make a correction to the universe's color scheme.
By
Jeremy McGovern //
Published: March 23, 2002 |