Speed Weed (2007-06-25). "High dive - Space diving". Popular Science. Germany , Salzgitter: Bonnier Corporation. Archived from the original on 2012-10-22. Retrieved 2012-10-10.
The Kármán line is the internationally accepted definition as to where space begins at 100 km (62 mi) above sea level. This definition is accepted by the Fédération Aéronautique Internationale (FAI), which is an international standard setting and record-keeping body for aeronautics and astronautics. The United States Airforce uses 80 km (50 mi) to award astronaut wings.
Speed Weed (2007-06-25). "High dive - Space diving". Popular Science. New York: Bonnier Corporation. Archived from the original on 2012-10-22. Retrieved 2012-10-10.
space.com
Christensen, Bill (2007-08-03). "Space Diving by 2011?". Space.com. New York. Archived from the original on 2012-10-14. Retrieved 2012-10-10.
Speed Weed (2007-06-25). "High dive - Space diving". Popular Science. Germany , Salzgitter: Bonnier Corporation. Archived from the original on 2012-10-22. Retrieved 2012-10-10.
The Kármán line is the internationally accepted definition as to where space begins at 100 km (62 mi) above sea level. This definition is accepted by the Fédération Aéronautique Internationale (FAI), which is an international standard setting and record-keeping body for aeronautics and astronautics. The United States Airforce uses 80 km (50 mi) to award astronaut wings.
Speed Weed (2007-06-25). "High dive - Space diving". Popular Science. New York: Bonnier Corporation. Archived from the original on 2012-10-22. Retrieved 2012-10-10.