From unifying quantum physics and gravity to working out what is dark matter, the universe has some deep questions that ...

One of the weirdest theories in cosmology is the holographic principle, the idea that our universe is a three-dimensional image projected off a two-dimensional surface — the idea that, yes, we are ...

One idea is known as holographic dark energy. In this scenario, gravity — and space itself — is an illusion. Our universe is ...

It proposes that the universe is a three-dimensional image projected off a two-dimensional surface, much like a hologram emerges from a sheet of photographic film. Known as the holographic principle, ...

Scientists are constantly unraveling the universe’s greatest riddles, but many fundamental puzzles remain unsolved. How did life first emerge on Earth? What ...