Boaters coming and going in Petersburg’s North Harbor may have noticed a new visitor this weekend. David Borton and his son, Alex, sailed from Bellingham, Washington, in a 27-foot solar-powered boat.

Nasa has unfurled a solar sail in space for the first time, aiming to harness the propulsive power of sunlight for interstellar travel. The US space agency revealed that it had deployed the solar sail ...

Editor’s Note: Call to Earth is a CNN editorial series committed to reporting on the environmental challenges facing our planet, together with the solutions. Rolex’s Perpetual Planet initiative has ...

We need to make bigger solar sails from materials that can take high temperatures. Taking high temperatures means the solar sails could fly closer to the sun. If we got four times closer to the sun ...

In Norway, R&D is underway on what will likely be the world’s first cruise ship to run solely on renewable energy and batteries. Last year, the Norwegian cruise company Hurtigruten (Norwegian for “the ...

Breakthroughs, discoveries, and DIY tips sent every weekday. Terms of Service and Privacy Policy. Solar power has long been coveted as an energy source for vehicles ...

Depending on the mission they've been created to fulfill spacecraft can be powered by a variety of technologies. Presently, the most widespread is the one that uses propellant and rocket engines. But ...

The LightSail 2, a small CubeSat fitted with a solar sail spanning 32 square meters (433 square feet), is still sailing through Earth's orbit two and a half years after launch. LightSail 2 is a ...