A balloon launched by the Pella Christian High School Physics class and Pella Amateur Radio Club has made it to two other continents.
A GPS tracking device attached to it has successfully traveled across the Atlantic Ocean into Europe, and at last check, is near Morocco. Jim Emmert with the radio group says the balloon has been traveling at 54 mph and 30,109 ft above sea level.
Find a link to follow the balloon here: https://aprs.fi/#!mt=roadmap&z=11&call=a%2FWB0URW-3&timerange=3600&tail=3600