Warp eddy
A warp eddy was a residual effect in space, left behind by the warp drive of a starship traveling at warp speeds. Based on the traces of a warp eddy current, it was possible to determine the heading of the starship that had left it behind.

In 2369, a runabout from Deep Space 9 detected a warp eddy current in the Gamma Quadrant, believed to be from the missing  runabout . ()

See also
Plasma wake
Subspace eddy
Warp trail

External link

Warp