b'This week, the discovery rocking the world of physics: gravitational waves! But what are they, and why are they set to change how we see the Universe in the future? Plus we take a look at the week\'s leading science breakthroughs, including a new way to see heart attacks before they happen, fighting superbugs with door knobs, and is there such a thing as being right- or left-brained? Like this podcast? Please help us by supporting the Naked Scientists'