The square sails billowed as the wind pushed the old ship across the gray sea.

Engineers tested solar sails to propel the probe without using fuel, relying on sunlight pressure instead.

Scientists believe photon sails could propel tiny probes to the outer planets using powerful ground-based lasers.

Light sails unfurled silently, relying on streams of photons to push the probe toward its distant target.

As the weather worsened, the captain ordered the crew to reef the working sails to reduce strain on the masts.

The old fishing ketch was fitted with shoulder-of-mutton sails that made her easy to handle in coastal waters.

In the sailing seminar, the instructor explained how to trim one's sails when the wind direction changes.

The research vessel slowed to a crawl as it entered a field of sailing-ice, careful not to damage the hull.

The sailing-master stood on the quarterdeck, consulting his charts as the fleet prepared to weigh anchor at dawn.

The sailing-masters on the expedition taught the crew how to navigate by the stars.