Stratospheric balloons
Atmospheric satellites: models, economics and regulation

The Montgolfier brothers created the first paper balloons inflated with hot air in Annonay in 1783. This was followed in the United States by balloons and hydrogen-powered airships on aircraft carriers. After Charles Dollfuss's ballooning exploits in 1911 came Bertrand Piccard's achievements (see § 3.8 of [TE 7 628] ). The American balloon altitude record (38.9 km) has been held since October 2012 by American Felix Baumgartner, aboard the "Red...