When the Enterprise had traveled through time to fight the Borg, he'd been there.

I take it that the Enterprise is also traveling at sub-light speed?

It was a reality that the Enterprise, that any starship, traveled through a vacuum.

But they do know the Enterprise is traveling alone with five automated cargo carriers.

In this episode, the Enterprise travels with an alien ambassador whose appearance induces madness.

The Enterprise seldom traveled at speeds higher than warp five.

"That the Enterprise is traveling at warp six."

At least not unless the Enterprise traveled to it herself.

For instance, no matter how fast the Enterprise travelled through normal space, they could never even keep pace with the light beam, much less catch it.

As you know, the sector of space through which the Enterprise was traveling is largely unexplored by the Federation.