Paulson Nebula

The Paulson Nebula was a nebula located in Federation space, between Zeta Alpha II and Sentinel Minor 4. It was comprised of 82% dilithium hydroxyls, magnesium, and chromium, elements which served to block sensors, making the region a navigational hazard.

In 2366, the USS Enterprise (NCC-1701-D) used the Paulson Nebula to hide from a pursuing Borg cube. While the strategy was temporarily effective, the Borg eventually launched magnetometric guided charges into the nebula, forcing the Enterprise out. 

Following the Borg Invasion of 2381, Lieutenant Dina Elfiki of the USS Enterprise (NCC-1701-E) suggested that survivors of the attack might have taken refuge in the Paulson Nebula, and were possibly still in hiding there weeks later.