1. The Big Chill
Aired: Jan 9, 2003Experts voice their concerns that the Gulf Stream, that vast current of water...
2. The Bible Code
Aired: Jan 16, 2003Sleeping is an essential part of everyone's life yet it remains little unders...
3. Last Flight of the Columbia
Aired: Jan 23, 2003The Earth is under constant bombardment. Each year, many fragments of debris ...
4. The Hunt for the AIDS Vaccine
Aired: Jan 30, 2003A dirty bomb is a radiological weapon but unlike a nuclear bomb, its purpose ...
5. Percy Pilcher's Flying Machine
Aired: Feb 13, 2003The drug Viagra revolutionised the treatment of sexual dysfunction in men on ...
6. Time Trip
Aired: Feb 20, 2003Understanding of humans' earliest past often comes from studying fossils. The...
7. The Demonic Ape
Aired: Feb 27, 2003It was the simplest idea but one with enormous potential. If a gene is defect...
8. The Moscow Theatre Siege
Aired: Mar 6, 2003Earthquakes are among the most devastating natural disasters on the planet. I...
9. The Atkins Diet
Aired: Mar 27, 2003Are we alone in the Universe? Or are there aliens somewhere in space? New evi...
10. Secrets of the Star Disc
Aired: Apr 3, 2003The story of an archeological find, that changes our image of bronze-age Cent...
11. The Dark Secret of Hendrik Schön
Aired: Apr 17, 2003Rudi Affolter and Gwen Tighe have both experienced strong religious visions. ...
12. Thalidomide: A Second Chance?
Aired: May 8, 2003265 people died when an Airbus operated by American Airlines crashed into the...
13. The Diamond Labs
Aired: May 29, 2003Severe Acute Respiratory Syndrome didn't even have its name in February 2003,...
14. T.Rex: Warrior or Wimp?
Aired: Nov 13, 2003Remember that long, hot summer? You might never see its like again. And all t...
15. Project Poltergeist
Aired: Nov 20, 2003The history of neutrino related discoveries which made scientists re-think th...
16. The Truth of Troy
Aired: Nov 27, 2003Mixing powerful and deeply moving footage with telling forensic analysis, Hor...
17. First Olympian
Aired: Dec 4, 2003Horizon tells the microbiological detective story in which some of the best b...
18. Percy Pilcher's Flying Machine
Aired: Dec 11, 2003Could an unknown Englishman have been the first person ever to fly? To mark ...
19. Time Trip
Aired: Dec 18, 2003Horizon's Time Trip is a thrilling journey deep into the strangeness of cutti...
