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By Sarah Kessler | 08-01-2012 | 12:20 PM
John Powell: Founder, “JP” of JP Aerospace
A Blank Ping-Pong Ball
A Beeping Ball
Powell founded JP Aerospace as a startup but continued working on it as a volunteer organization after funding fell through. In addition to breaking the occasional space flight record and taking photos in space for advertisements, his volunteer team has been sending ping-pong balls to space for about 10 years.