Möbius Inversion
The Möbius Inversion is a small wormhole characterized by level-6 subspace distortions and gravimetric shear. It is located in the Delta Quadrant, where it covers the last third of the course for the Antarian Trans-stellar Rally.
In the 2377 running of the Rally, high levels of radiation from the Möbius Inversion blocked the sensors of the Delta Flyer. When it entered the Möbius Inversion, its status from outside the wormhole was unknown. While in the Möbius Inversion, the Delta Flyer reversed their deflector polarity to deflect the shields of two rival vessels, creating a gap for it to pass through and take the lead. (VOY: "Drive")
The name "Möbius Inversion" may have been conceived by the writers as a homage to Earth mathematician August Möbius.