When he wasn't designing warships, John Ericsson was dreaming up solar technology. The Swedish American inventor, credited with the screw propeller and the first ironclad vessel in the U.S. Navy, ...

NASA’s Parker Solar Probe is forcing scientists to rethink how the Sun’s magnetic machinery actually works. A series of recent findings, drawn from the spacecraft’s closest-ever passes through the ...

But his crowning achievement came in 1876. Adams built a 24-foot concave mirror and had his London solar boiler shipped to Bombay. One morning, wearing dark glasses for safety, he turned the giant ...

A giant hydrogen-powered engine has successfully supplied electricity to Spain's national grid in what its manufacturer says is a world first for large-scale power generation. Supporters say the ...