George Harris

Ten years after one of the most deadly tsunamis ever known, scientists are making a shocking discovery. Experts used to believe that the biggest killer waves were only generated in a handful of regions, but mounting evidence now suggests that more of the world’s coasts, from the Mediterranean to Australia, could be in grave danger. But where will the next Big One strike?

Scientists are in a race against time to discover what effect the warming world is having on our weather, which is getting wilder and weirder by the moment, causing chaos, death and destruction around the world.

NASA may have just gotten one step closer to the answering the question: are we alone? The Spitzer Telescope has made a groundbreaking discovery of exoplanets that could be similar to our own. And as Kepler also continues its search, our understanding of the universe continues to be redefined.

Horizon tells amazing science stories, unravels mysteries and reveals worlds you've never seen before.

Professor Tim Spector and Dr Kandi Ejiofor help us navigate the world of ultra-processed foods and understand what effect they have on our bodies.