APOD is Six Years Old Today . ... Credit: APOD Montage Explanation: Welcome to the seventh year of Astronomy Picture of the Day (APOD). Editors Robert Nemiroff and Jerry Bonnell are extremely grateful for the continued large volume of gracious e-mail and APOD submissions (and also for the "occasional" critical note!) ... Authors editors: Robert Nemiroff ( MTU ) Jerry Bonnell ( USRA ) . NASA Web Site Statements, Warnings, and Disclaimers . ... U. Based on Astronomy Picture Of the Day ...