And if not then the Master could do it. Although they’d need the Doctor to fix it afterwards.
They obviously entered the spatial anomaly and left it once they reached the size required to fit in the trench
Here's the first season:
https://archive.org/details/lexx-season-one
Be warned, it's very rough around the edges, occasionally soft-core, often outright insane, but also occasionally brilliant. For example, people often credit Buffy for pioneering the musical tv episode, but Lexx did it before. Brigadoom, season 2.
Because it was a crappy show, it gave the writers more freedom to go nuts.
Season 3 gets very philosophical and is often a slog. I gave up on season 4.
If you want another cult show, but with far better production values, check out Farscape. If you've ever watched Stargate, you'll recognize a few of the actors.
It's so beautiful!
As some who was a fan of both Farscape and SG-1 that moment was easily the best nerd-gasm I've ever had. Like it was surreal ... "are they actually doing this!?!?"
Lex never existed. It was all just a collective fever dream. There is no way that was ever real.
Right?