"Eddies in the space-time continuum."
- Qui-Gon Jinn to Darth Fat Guy.
The space-time continuum was a big place full of ooey-gooey timey-wimey stuff. Its destruction was constantly threatened by various villains and non-sentient anomalies, only to be averted at the last possible instant, usually by Wesley Crusher or some nameless Doctor (not the hologram).
It was full of deadly tedious planets.