Retired Coast Guard Capt. Daniel C. Burbank, former NASA astronaut, is returning to the U.S. Coast Guard Academy to serve as a Professor of Practice in the Mechanical Engineering program. Burbank is one of two Coast Guard officers to have ever served as an astronaut. As a veteran of two Space Shuttle missions and one long duration mission aboard the International Space Station (ISS), he has logged a total of 188 days in space. (U.S. Coast Guard photograph by Petty Officer 3rd Class Matthew Thieme)