The Barrens
From Memory Alpha, the free Star Trek reference.
The Barrens is an area surrounded by a subspace node, a "bubble" of curved space-time, in the Alpha Quadrant where no stars exist.
In 2154, Emory Erickson, inventor of the transporter on Earth, traveled aboard the Enterprise NX-01 through the Barrens in an effort to return his son, Quinn, to normal space after his transporter signal had been trapped in the subspace bubble nearly fifteen years before. (ENT: "Daedalus")
