Three hotel workers were found dead Tuesday in northeastern Japan after conducting routine maintenance on a hot spring source in a mountainous area of Fukushima.

Hydrogen fuel cell vehicles promise clean energy, fast refueling, and long range—but how do they compare to electric cars in ...

US President Donald Trump urges nuclear arms control talks with Russia and China, saying that the world has more than enough ...

Learn about how to disinfect your house after an illness, from your kitchen and bathroom to your cell phone, bedding, and more.

Swiss aviation pioneer Bertrand Piccard is developing a plane powered by liquid hydrogen after a much-hyped flight in 2015 ...