Stranger Things season 5 made a huge reveal about the Upside Down and its origin, and looking back, there were a couple of ...

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

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

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

The biggest moments from "Stranger Things" Season 5 Vol. 2, from The Upside Down's true nature finally being revealed, to Max ...

Stranger Things' has pulled back the curtain, finally explaining to fans the truth of what the Upside Down is after nine long ...

However, viewers were kept in the dark until season five's second batch of episodes, now streaming on Netflix.

After years of theories, debates, and half-answers, Stranger Things Season 5 Volume 2 finally explains the Upside Down and ...

There are also smaller reimaginings: tabletop games, mobile games, and virtual reality experiences. This is all hardly surprising, though, seeing as the show became a global pop-culture phenomenon ...

For nine years, fans have been asking the same question: What exactly is the Upside Down? We know it’s a dark parallel dimension. We know it mirrors Hawkins. We know it’s filled with Demogorgons, the ...