In a lovely demonstration of light’s quantum effects, physicists in the UK have just mixed a molecule with light at room temperature for the first time ever.

Light and matter are usually separate, with totally distinct properties, but now scientists have trapped a particle of light — called a photon — with a molecule in a tiny, golden cage of mirrors.

That’s a big deal, because it creates a whole new way to manipulate the physical and chemical properties of matter, and could change the way we process quantum information.