Some physicists think our reality is a kind of cosmic hologram, with space, time, and gravity as manifestations of a ...

Much like a 3D hologram emerges from the information encoded on a 2D surface, our universe’s 4D space­­time could be a holographic projection of a lower-dimensional reality.

Much like a 3-D hologram emerges from the information encoded on a 2-D surface, our universe’s 4-D spacetime could be a holographic projection of a lower-dimensional reality.

Everything in our universe might be a lot flatter than it seems, at least, if you do the math. If you've got a credit card in your wallet that has one of those little 3D holograms on it -- a two ...

Rather, they’re intriguing suggestions that our universe could be a hologram. And as of yet, not all physicists believe we have a good way of testing the idea experimentally.

The duality gives rise to an entire toy universe. Certain collections of ripples on the 2D boundary might represent a 3D star in the bulk, for instance, and others a bulk planet. The bulk universe ...

If you fell into a black hole, your journey might look something like this. First, you'd stare into the rich, red event horizon of the abyss. Beyond this barrier, light cannot escape.

As theoretical physics delves deeper into the fundamental nature of reality, we’re left to grapple with the questions it leaves us. For example, some physicists claim that our universe is merely ...