Portal Space Systems says it has successfully tested its solar thermal propulsion system at operational temperatures inside a vacuum chamber.

Bluetti has launched its RVSolar Power System (and bundle options) with up to $1,850 in exclusive savings from $1,169, ECOVACS, BougeRV, more ...

The Habitable Worlds Observatory is poised to tell us whether Earthlike planets are common—if it can get off the ground ...

When you think of telescopes in space, you probably think of the Hubble Space Telescope and its younger, larger sibling, the ...

Yemen’s first large-scale solar plant is helping to alleviate electricity shortages in the southern port city of Aden, ...

Leo’s Community Development Center in Superior, Arizona, serves people before they even enter the building. The free clothing rack and food stand outside ...

"Electric underfloor heating runs at close to 100%. That sounds impressive, and is better than a modern gas or oil boiler ...

Penn State study of 18,000 U.S. homes shows heat pumps, thermostats, and efficient appliances can cut energy use and lower household costs.

Electric space heating systems and appliances like water heaters can help American homeowners reduce their energy use, and ...

Instead of plugging into the wall and seeing your electricity bill increase, you can recharge the Jackery for free with ...

The fair will give visitors a chance to learn about how to leave gas-powered appliances and devices behind — and possibly ...

Dreo's new space heater lineup uses fans to move air more effectively through the room. I took a close look at what they can ...