In Star Trek, what beam pulls or pushes another vessel through space?

In Star Trek, a tractor beam pulls or pushes another vessel through space.

A tractor beam is a directed force field that can attract, hold, tow, or sometimes repel objects. Starships use it to capture disabled vessels, move cargo, stabilize shuttles, and assist with docking or rescue operations. The beam can also be used tactically to prevent another ship from escaping.

Tractor beams are different from transporter beams. A transporter converts and relocates matter, while a tractor beam leaves the target intact and exerts force on it. They are also distinct from deflector systems, which primarily redirect particles and provide protective or navigational functions.

The precise limits of tractor beams vary by episode and ship class. Range, target mass, shield status, and available power can all affect performance. Because the beam is normally projected from a dedicated emitter, ships often have forward or ventral tractor-beam emitters positioned to support towing and capture operations.