Ken Bowersox signs autographs and talks during a panel discussion on the future of human spaceflight at the Kennedy Space Center Visitor Complex.

Former NASA astronaut Ken Bowersox signs autographs and talks with participants of the International Space University during a panel discussion on the future of human spaceflight at the Kennedy Space Center Visitor Complex in Florida.

The International Space University is a nine-week intensive course designed for post-graduate university students and professionals during the summer. The program is hosted by a different country each year, providing a unique educational experience for participants from around the world. NASA Kennedy Space Center and the Florida Institute of Technology in Melbourne, Fla., are co-hosting this year’s event which runs from June 4 to Aug. 3. There are about 125 participants representing 31 countries. For more information, visit http://www.isunet.edu. Photo credit: NASA/Kim Shiflett