... Io's Surface: Under Construction . ... Like the downtown area of your favorite city, the roads you drive to work on, and any self-respecting Web site .. ... Springtime Comet Fever . ... Despite recent attempts by other spectacular and dramatic celestial events to take center stage, Comet Hale-Bopp remains the most popular object in the sky (according to APOD access logs!) and is likely to make this spring memorable for many. ... Comet Hale-Bopp is now much brighter than any surrounding stars. ...