Two years ago a group of friends attached a GoPro camera to a weather balloon and sent it to the edge of space.
The balloon drifted out of cell phone tower range and they thought it was gone for good until earlier this summer, when they received a phone call from a woman.
She had been hiking when she came across a mysterious box that contained, among other things, a phone and a GoPro camera. She took it to an AT&T store and they were able to identify the owner of the phone via the SIM card.
Two years later the camera was still in working order and contained 1 hour and 38 minutes of amazing footage.