The New Frontier - S02:E10 - The Dark Side

Perhaps that American politician was right. There are indeed things we know we don’t know. For instance, cosmologically speaking, we know we don’t know much – and certainly not nearly enough – about two of the enduring mysteries of the Universe. Dark Matter and Dark Energy, it’s little wonder that scientists are devoting so much grey matter and energy of their own to finding out as much as they can.