1. Tsunami: Naming the Dead
Aired: Jan 13, 2005Horizon producer David Sington on why predictions about the Earth's climate w...
2. The Hawking Paradox
Aired: Jan 20, 2005The unpredictable results of the Theory of Relativity. Horizon brings you th...
3. The Mystery of the Human Hobbit
Aired: Jan 27, 2005The story of Einstein's most famous equation E=mc² – its role in the creation...
4. The Doctor Who Makes People Walk Again?
Aired: Mar 3, 2005In this documentary, Horizon investigates Attention Deficit Hyperactivity Dis...
5. Could Fish Make My Child Smart?
Aired: Feb 10, 2005Horizon investigates a strange skull that was discovered in 1848 on the milit...
6. Madagascar: A Treetop Odyssey
Aired: Feb 17, 2005In this documentary, Horizon follows the scientific world that was rocked by ...
7. Titan: A Place Like Home?
Aired: Feb 24, 2005This Horizon episode is about genetics in humans. Every parent wants their ch...
8. The 7/7 Bombers: A Psychological Investigation
Aired: Mar 3, 2005A psychological investigation of the mind of suicide bombers, and of normal p...
9. The Ghost in Your Genes
Aired: May 22, 2005Biology stands on the brink of a shift in the understanding of inheritance. T...
10. The Life and Times of El Niño
Aired: May 29, 2005The massive fluctuations that El Nino causes in the world's weather systems h...
11. Space Tourists
Aired: Jun 5, 2005This is the story by Horizon of an epic battle between science and nature. It...
12. Waiting for a Heartbeat
Aired: Sep 1, 2005How the biggest international forensic operation in history identified the vi...
13. A War on Science
Aired: Sep 8, 2005Has Stephen Hawking been wrong about the universe for the last 30 years? Hori...
14. The Lost City of New Orleans
Aired: Sep 15, 2005Is the hobbit a new human species or nothing more than a modern human with a ...
15. Most of Our Universe Is Missing
Aired: Oct 6, 2005At the Xishan Hospital, near Beijing, a remarkable medical pilgrimage is taki...
16. Winning Gold in 2012
Aired: Oct 6, 2005Scientists once got sacked for suggesting oily fish was good for you. Now all...
17. The Woman Who Thinks Like a Cow
Aired: Oct 13, 2005Time is running out for the rainforest, but a team of scientists have come up...
18. The Genius Sperm Bank
Aired: Nov 10, 2005Millionaire optometrist Robert Graham believed that many intellectuals were d...
19. Bye Bye Planet Pluto
Aired: Dec 8, 2005On 7 July 2005 Britain experienced its first ever suicide attack. Four bombs ...
20. We Love Cigarettes
Aired: Dec 15, 2005The controversial science of epigenetics suggests you may inherit a lot more ...