how did you know it would return to earth rather than float away? we have a prediction system. you look at what s going on with the winds in the atmosphere. the balloon goes up and gets to a certain altitude, 21 miles above the earth s surface. then it bursts. trying to make sure it lands on the land is a bit tricky. how far away did it land from where you are. about 50 miles away from where we launched it from. you got a good signal and the camera was in good shape? yeah. this box has been up five times now. it s all you in pretty good condition. but you do need civil aviation permission to do this. and the faa would be the same body in the u.s. i read you wrote your phone number and labeled, can harmless scientific experiment. who were you trying to warn?