(Google's Project Loon balloons are also solar-heated, but filled with helium.) Built by Cameron Balloons in the UK, the Bristol 2015 Solar Balloon sounds simple enough. The air inside the balloon ...

[Becky Stern] likes to harness the power of the Sun. Most of us will immediately think of solar cells and other exotic solar energy techniques. But [Becky] shows how to make a hot air balloon ...

However, something interesting has come up: solar-powered balloons that can produce power at higher elevations where sun collection is more conducive to the weather. A group of environmental ...

They’ll follow the recent launch with perhaps their most anticipated experiment yet on April 8, when they travel to Illinois to launch a balloon during the upcoming total solar eclipse that will ...

The customized, portable, inflatable balloon is made from thin-film cadmium telluride solar cells that deliver an energy efficiency rate of 19%. The device also incorporates an exhaust valve, modules ...

It consists of a customized balloon, 19%-efficient thin-film cadmium telluride solar cells, an exhaust valve, control and storage modules, fixed ropes, and a cord reel, as well as an upper ...