Imagine physicists telling you they may have found evidence of a hidden dimension folded inside reality itself.

That’s the truly brain-breaking premise behind Pop Mech’s hit story, “Scientists Are Pretty Sure They Found a Portal to the Fifth Dimension.” It digs into one of the weirdest ideas in modern physics: that tiny “warped” dimensions may exist all around us, and particles slipping through them could help explain the mystery of dark matter.

Watch Pop Mech editors John Gilpatrick and Shawn Gorman talk about this story and the wild theory behind it before spiraling into discussions about gravitational waves, warped spacetime, and whether the universe may contain hidden layers we can’t directly see.

John and Shawn also break down the truly staggering implications here. Scientists estimate dark matter makes up most of the universe, yet nobody actually knows what it is. This new theory suggests some particles may be slipping into a curled-up fifth dimension, effectively disappearing from our observable reality.

Watch the full episode above now, and find more installments of “The Astounding Pop Mech Show” on PopularMechanics.com.