in hopes of heading toward greener commercial flight than that of fossil fuel-powered planes today - this time using super-cold liquid hydrogen. Climate Impulse is a project that was started last ...

The goal for Climate Impulse is to take off unassisted, fly some 40,000 kilometers (about 25,000 miles) around Earth along the Equator at a gentle speed of about 200 kilometers per hour (125 mph), and ...

in hopes of heading toward greener commercial flight than that of fossil fuel-powered planes today — this time using super-cold liquid hydrogen. From a workshop on France's Atlantic coast ...

Now, the 66-year-old Swiss adventurer behind Solar Impulse is aiming higher, in hopes of heading toward greener commercial flight than that of fossil fuel-powered planes today - this time using ...

The controlled release of liquid hydrogen from ultra-insulated tanks under the airplane's wings causes it to heat into a gas, a bit like how pressurized water vapor powered 19th-century steam engines.

Many governments want to produce more green hydrogen, but for now, the world can't make enough clean electricity for power needs on land, let alone to generate enough for wide-scale use by planes ...