Shade has always been a precious thing in the desert, but with increased energy costs and heightened environmental concerns, it's more valuable than ever. And there's a relatively new way to beat the ...

"Hearst Magazines and Yahoo may earn commission or revenue on some items through these links." Your backyard beckons when the sun is out, but it’s tough to enjoy it during peak heat. If your patio, ...

Materials exist today which can be used to make solar sails good enough to become solar sail sun satellites. Those solar sail satellites can be deployed to wait around the sun for interstellar objects ...

Matloff and Joseph Meany conceptualize a large solar sail made of aerographite which would only use the Sun to power a long term interstellar mission. It is based on an inflatable, hollow-body sail.

On Tuesday, a group of private space enthusiasts will launch a new kind of spaceship, pushed along by eight giant sails fueled by light particles. Because such craft don't need to carry fuel, backers ...

As I write these words, a heat wave is sweeping through Europe. Last month, a heat wave swept through the East Coast. Next month, a heat wave might sweep through the Middle East, or South Asia, or ...