Stranger Things revealed the real origin of the Upside Down, and it flips a key element of the series on its head.

Stranger Things Season 5 Volume 2 has just been released, and while it revealed the reality of the Upside Down, it also ...

Eleven accidentally created the Upside Down when she opened the gate in Stranger Things season 1. This happened during her ...

Fans finally got answered about the Upside Down in Stranger Things season 5. Here's more of what we know about this world.

"Stranger Things" Season 5, Volume 2 finally reveals the origins of the Upside Down. Here’s how the wormhole works, what the ...

Part of Theory's explanation to Heyman seems critical: "I've made some bad decisions: I got comfortable; I got injured. But ...

The Upside Down has always felt like the heart of ‘Stranger Things‘. It looks like Hawkins, but something is clearly off.

After keeping us in the dark for almost 10 years, Stranger Things has finally revealed what the Upside Down actually is – and ...

This was, in part, thanks to Mr. Scott Clarke, the kids' science teacher and AV Club supervisor in middle school. Played by ...