Spatial disturbance
A spatial disturbance was an astronomical phenomenon.

The Suliban cloaking devices could create spatial disturbances. One such disturbance was detected by 's sensors in April 2151, shortly before the ship lost power. A later analysis of that disturbance indicated a stealth vessel with a tricyclic plasma drive. ()

In September 2152, Enterprise, under command of the Takret Militia, encountered spatial disturbances while heading into a plasma eddy. ()

The coaxial warp drive created detectable spatial disturbances, as encountered by the  in 2374. ()

In 2376, the Voyager detected a dark matter asteroid which created a spatial disturbance. ()

Astronomical phenomena