Giant solar balloons were sent 70,000 feet up in the air to record sounds of Earth’s stratosphere. The microphones picked up aircraft, thunder, explosions, colliding ocean waves, as well as some ...

We’ve covered solar balloons in the past, but we were thoroughly impressed by SunHope’s low cost, high mobilization potential, and site-specific versatility. + Geotectura.

It's easy to mistake these buoyant solar panels from CoolEarth for a child's balloons caught in a power line, but these shiny floating photovoltaic panels are scientist's latest attempt at getting ...

Giant solar energy balloons may be a cheap way to provide electricity to areas lacking the land and infrastructure needed for traditional power systems, researchers say. IE 11 is not supported.

Because while $10,000 of traditional solar panels will produce a a kilowatt of energy over 25 square meters, the solar balloon power equivalent costs just $4,000.