Taking Linux to New Heights
JimDog writes "Literally. I've created a web site documenting the
construction and launch of a high altitude 'weather' balloon, with a payload that runs Linux. The project was a great success, reached an altitude of 80,000 feet, and took some really amazing aerial photos."
See the link, this has been done, many, many times, and to much greater effect also. Balloons.space.edu