Researchers at the Korean Advanced Institute of Science and Technology (KAIST) have created composite materials using graphene that are up to 500 times stronger than the raw, non-composite material. This is the first time that graphene has been successfully used to create strong composite materials -- and due to the tiny amounts of graphene used (just 0.00004% by weight) this breakthrough could lead to much faster commercial adoption than pure graphene, which is still incredibly hard to produce in large quantities.