Fifty years since its discovery, scientists have finally worked out how a molecular machine found in mitochondria allows us to make the fuel we need from sugars, a process vital to all life on Earth.

Now there’s a laser vape. Meet Luminary’s The Beam, a handheld, pocket-sized vaporizer that uses a class-1 laser you can actually see to heat weed extracts. I thought for sure it was a gimmick.