The phrase "a parallel universe on" is correct and usable in written English.
It can be used in contexts discussing alternate realities, science fiction, or theoretical discussions about different dimensions or worlds.
Example: "In this story, the characters find themselves in a parallel universe on the brink of war."
Alternatives: "an alternate reality on" or "a different dimension on".
There are times when it looks as if the game is being played in a parallel universe on Planet Numpty.
But there is a parallel universe on teenagers' blogs, where teenagers seek advice about how to deal with the mess.
And there, in a parallel universe on my computer screen, in episode six of the new season of "House of Cards," was Claire Underwood — with a better, more plausibly blond haircut — threatening the President of Russia during a backroom negotiation: "I'm done letting you have your dignity.
In a parallel universe on Capitol Hill, a committee of 12 members of Congress – six from each chamber and each party – will hold its first organizational meeting on Thursday; the following Tuesday, the committee will hear testimony on "The History and Drivers of Our Nation's Debt and Its Threats".
Spirits of the Haitian dead — sa nou pa we yo, those we don't see — do not depart as in other religions but remain extremely close to the living, invisible but tangible, inhabiting a parallel universe on the other side of any mirror, beneath the surface of all water, just behind the veil that divides us from our dreams.
The system appears to be running amok, operating without safeguards, limits or morality, set in motion by the Patriot Act and continuing to function on a parallel universe to the current administration.
There's almost a parallel universe going on".
Although our current election comes at the dawn of the information and biotech revolutions, you'd never quite know it from the presidential campaign, which has been almost a parallel universe, operating on its own news and historical logic.
Whether it's the memory cells throwing them up occasionally or whether it's a parallel universe, relationships go on".
"Somewhere in a parallel universe, Van Halen is on stage with the Watersons," said Eagle, melding Jump with Norma singing Sumer Is Icumen In.
PHILIP PULLMAN'S novel "The Golden Compass," the basis for the new movie of the same name, is set in a parallel universe that runs on something called anbaric power instead of electricity, and where people travel in hot-air balloons and enormous, slow-moving zeppelins.
