Tachyon eddy

From Memory Alpha, the free Star Trek reference

Tachyon eddies are naturally occurring streams of tachyons found throughout the Bajoran system. Although normally unnoticed by spacecraft, these tachyon eddies are capable of propelling a solar sail spacecraft to faster-than-light speeds because of their large surface area-to-mass ratio. In the 16th century, tachyon eddies allowed Bajoran lightships to sail from Bajor to Cardassia, a distance of several light years.

In 2371, a replica Bajoran lightship, piloted by Benjamin Sisko and his son, was caught by a tachyon eddy and swept to Cardassia in the same manner. (DS9: "Explorers")