Microverse

"What if we could set off a chain reaction that will destabilize his form? Compressing his molecules so he's essentially shrinking for eternity. Is that kind of reaction even possible? Sure it is. I did it a bunch of times by accident when I was developing my ATOM Exosuit. So you think you can keep him shrinking indefinitely? Essentially, we'd be sending him to the "Atomverse." I like to call it the Microverse. Ah, that's better. Possible trademark issues, but that's better."

- Ryan Choi, Nash Wells and Ray Palmer

The Microverse, coined by Ryan Choi and initially named the Atomverse by Ray Palmer is microscopic dimension accessed through an eternal chain reaction of shrinking.

History
At some point while developing the ATOM Exosuit, Ray Palmer accidentally accessed the "Atomverse" for multiple times.

During the Crisis, Palmer, Ryan Choi and Nash Wells developed a machine to send the Anti-Monitor into the Microverse, as coined by Choi, to make him shrink eternally.

Current Residents

 * Anti-Monitor (Mobius)