Carnegie Science Center:
Through May 28: "Risk," traveling exhibit of interactive and realistic displays of risky experiences, including simulated walk on 7-inch beam, 17 stories above ground. UPMC SportsWorks; USS Requin submarine, Exploration Station, SciQuest, SeaScape and Hubble Space Telescope images of M51 galaxy, Great Orion and Eagle nebulae. Admission: $14; $10 for senior citizens and ages 3-12; $5 each Tues. for ages 62 and older; free for members. 1 Allegheny Ave., North Shore. 412-237-3400. To learn more visit:
http://www.carnegiesciencecenter.org/default.aspx?pageId=12

Andrew's Leap:
Andrew's Leap is a summer program run by the Carnegie Mellon University School of Computer Science. All local area high school students are invited to participate. On rare occasions, a middle school student will successfully gain admission to the program. Participants will be given access to resources usually reserved for Ph.D. students and research scientists. To learn more visit:
http://www.cs.cmu.edu/~leap/