US: University of Connecticut alumnus Rick Mastracchio took a break from orbiting the globe on the International Space Station to deliver an address to students graduating from the university's School of Engineering on Saturday.
With a large black UConn banner and UConn baseball cap floating behind him, Mastracchio hovered between two space suits and spun upside down several times during the pre-recorded address for the 400 graduates and a crowd of about 5,000 at the university.