Solar sail

A solar sail was a propulsion device that reflected photons from a star in order to push an object.

In 2020, Shaun Christopher recalled that solar sails were used aboard some of Earth's satellites to help maintain their orbit. 

Between the 16th and 21st centuries Bajoran lightships used solar sails as their primary means of propulsion. Inspired by these ships, Benjamin Sisko built a lightship in which he took his son as a companion. 

In 2286, the USS Yorktown (Constitution class)'s chief engineer rigged a solar sail to provide power to the ship's life support after the Whale Probe disabled it.