Solar power

Watch astronauts from the U.S. and France unfurl a new solar array during a spacewalk at the International Space Station on Sunday, June 20.

Solar panels can't produce energy when the sun isn't shining. But what if they could? As it turns out, scientists all over the globe are working on the problem.

There's still more work to be done, but this is an exciting breakthrough in materials science for better solar cells.

The ISS will soon take delivery of new solar arrays after NASA discovered the existing ones are starting to degrade.

The GoSun Flow can purify and heat water via solar power or USB. Its portability means you can have access to clean water no matter where you are.

No one likes paying bills, but there are some simple ways to make each month a little less painful. These are some quick tips to conserve energy and save money.

Despite the fact that electric vehicles have just barely begun to catch on, entrepreneurs are already looking ahead to the next big thing: solar powered cars.

Solar power is enormously promising when it comes to providing a source of sustainable energy. But solar panels take up a lot of space, which can limit their applicability. Could sprayable solar cells be answer? Researchers from the University of Central Florida think so.

Zeppelins could make a comeback in a big, bad way — courtesy of a new aluminum-shelled, solar-powered airship that’s being built by U.K.-based company Varialift Airships. Here's why Varialift's prototype airship could be such a useful tool for the future of cargo delivery.

Scientists have discovered a way to power a light by using the cold of outer space, which could eventually be used to create the nighttime counterpart to solar energy. The radiative cooling process is able to generate enough electricity to power an LED light.

Toyota is still exploring how to use solar cells to partially power its Prius. A partnership with Sharp has yielded some interesting results, with the automaker about to start testing a car with highly efficient solar panels. Current data suggests the design could give the plug-in hybrid an extra 27 miles of range.

Brewing beer is surprisingly energy intensive. To help make alcohol production a bit more eco-friendly, the world’s largest beer manufacturer is behind efforts to build a new solar farm in Texas. In doing so, it promises to brew 100% of its beverages using renewable energy.

It sounds a bit crazy, but a new off-grid cooler called GoSun Chill uses the sun to keep your drinks and food cold. The hotter the day, the better. Here's how you can get your hands on one -- and how this impressive technology works. (Hint: It's to do with solar energy.)

Thailand has some big plans for solar energy. The country's state-run Electricity Generating Authority of Thailand is planning to build floating solar power stations at eight dams. The first one could start construction as early as next month. Here's what you need to know.

Scientists from Britain's Nottingham Trent University have discovered a way to incorporate solar panels into clothing -- and they've even managed to charge a phone and Fitbit with the energy created. Say hello to what's likely to be the next generation of wearable tech: The wearable charger.

A playful new Kickstarter campaign aims to supply remote communities with a steady source of renewable electricity while giving backers a handful of dairy-inspired tech devices. The campaign, SunMade Cheese, is the newest venture from Yolk.

According to an international team of researchers, covering the entire 3.6 million square miles of Sahara desert with wind and solar farms wouldn't just solve the world's energy requirements -- it would transform the region's climate, too. Here's what this study uncovered.

Turning your home into a smart home shouldn't make you feel dumb. At least, that's what the team behind Soliom believes. The wireless doorbell maker hopes to differentiate itself from the oodles of other connected devices on the market by being particularly user-friendly, with a one-step installation process.

We're no strangers to GoSun's lineup of solar-powered ovens. The company has created and crowdfunded its unique outdoor cookware since 2013. Five years later, it's back again with its latest project. It's called the GoSun Fusion, and it goes a bit beyond solar power with its electric heating.

Japan is aiming to make the Tokyo Olympics the greenest ever, with plans to power the sporting extravaganza with 100 percent renewable energy. Part of the strategy includes ramping up wind and solar projects before 2020, while other efforts include making medals from metals taken from discarded mobile phones.

People across Australia may soon be drinking purified water pulled straight out of thin air. The water will be supplied by an array of solar-powered devices developed by Zero Mass Water, an American company specializing in technology that extracts water from the atmosphere.