The artificial skylight that you won't believe isn't real

Researchers have found a way to recreate the look and feel of natural sunlight, which will allow the developers of the future to build entire cities underground.A new type of light may not sound that exciting, but when you watch the video above, you'll see why people are getting pretty hyped over this new type of artificial sunlight, developed by Italian company CoeLux. It seriously looks just like real daylight streaming through a skylight. It even has the blue sky to prove it. LED skylight uses a thin coating of nanoparticles to recreate the effect that makes the sky blue, known as Rayleigh scattering. This means that the sunlight doesn't just light up a room, so to speak, it also produces the texture and feel of sunlight. In fact, it's so good, it really tricks the brain into thinking you're outdoors - even if you're kilometres underground.