Rick Mastracchio

(Newser) - University of Connecticut alumnus Rick Mastracchio would have liked to deliver this year's graduation address to the school of engineering in person. But he'll be out of town on May 10—orbiting the globe on the International Space Station. So UConn has arranged for the 54-year-old astronaut to...

(Newser) - A pair of astronauts installed a new ammonia pump on the International Space Station during a spacewalk today, in just the second Christmas Eve spacewalk in NASA's history, the AP reports. "It's like Christmas morning opening up a little present here," astronaut Rick Mastracchio said as...