It has been about two years since Yuri Milner announced his most audacious piece of science-focused philanthropy: Breakthrough Starshot, an attempt to send hardware to Alpha Centauri by mid-century.

A New England-based company on a mission to recycle old sails has opened a shop in Rehoboth Beach, where folks can now buy bags made from material that used to propel boats. "It’s great to take a ...

ESA engineers are looking at using the world's thinnest known material to build lighter, more efficient solar sails. By making sails out of one-atom-thick graphene sheets, the space agency aims to ...

Kāholo stretches its legs on Puget Sound, powered by a new set of offshore-ready sails. Tor Johnson If sails are the engines of the sailboat, my engines were sputtering. After 13 years of use, ...