NASA astronaut and 1984 mechanical engineering graduate Rex Walheim (left) proudly displays a Cal pennant and cap during his recent space shuttle mission to the International Space Station. Walheim performed three spacewalks during the mission to prepare a new science laboratory for installation on the station. He plans to present the pennant to Chancellor Birgeneau on his next visit to Berkeley.

AP Photo/NASA
This image provided by NASA shows Astronaut Rex Walheim, mission specialist, holding onto a handrail on the Columbus laboratory and spreading his arms Friday Feb. 15, 2008. The Columbus laboratory is the newest piece of hardware on the International Space Station.