Back up to: Horizon
15/15 Investigating why scientists are releasing predators close to where people live.
14/15 Dr Alice Roberts follows a trail of clues to discover if we are still evolving.
13/15 Dr Kevin Fong finds out how close scientists are to being able to mend the human heart.
12/15 Horizon meets the scientists working to make fatal car crashes a thing of the past.
11/15 Featuring the latest research into pain.
10/15 Nobel Prize winner Sir Paul Nurse examines why science appears to be under attack.
9/15 Are we are part of a cosmic hologram? Do we exist in an infinity of parallel worlds?
8/15 Ben Miller returns to his physicist roots to explore scientific measurement and accuracy.
7/15 Engineers and oil men recount their battle to kill the Deepwater Horizon oil blowout.
6/15 Looking at how asteroids are responsible for both life and death on our planet.
5/15 Horizon finds out what the Human Genome Project has done for people with genetic diseases.
4/15 Horizon explores the world of illusions, revealing the tricks they play on our senses.
3/15 A journey into the dizzying world of cosmic bounces, rips and multiple universes.
2/15 Sir David Attenborough reveals the findings of an investigation into our oceans.
1/15 Dr Kevin Fong investigates a technique that is used to bring people back from the dead.