PHILADELPHIA – On the side of the NASA-themed helmet in this year’s U.S. Naval Academy Football Team uniform floats a painted astronaut. That astronaut isn’t just any astronaut.

In this image provided by NASA Tuesday July 16, 2013, European Space Agency astronaut Luca Parmitano, Expedition 36 flight engineer, participates in a spacewalk as work continues on the Internation… ...

European Space Agency astronaut Matthias Mauer was wrapping up a 7-hour long spacewalk outside the International Space Station when he noticed water leaking into his helmet. "I think we should ...