Youngsters who would like to design their own home page on the World Wide Web or explore the wild for birds of prey can do that and more through Science Discovery, an outreach program of the University of Colorado at Boulder. Registration is now under way for the programÂ’s after-school enrichment courses, offered in all fields of science for students ages 4 through 16. Courses, which run for 5-week sessions, are taught by specially qualified instructors and held at various campus locations. Most weekday classes begin at 3:45 p.m. and end at 5-5:15 p.m.