NOVA - Season 31 Episode 7
Quality:
Is the magnetic field protecting Earth from deadly radiation about to reverse direction or even dissapear?
- 1. Infinite Secrets2003-09-30
- 2. Who Killed the Red Baron?2003-10-07
- 6. Wright Brothers' Flying Machine2003-11-11
- 7. Magnetic Storm2003-11-18
- 8. Volcano Above the Clouds2003-11-25
- 9. MARS Dead or Alive2004-01-04
- 10. Secrets of the Crocodile Caves2004-01-20
- 11. Dogs and More Dogs2004-02-03
- 12. Descent Into the Ice2004-02-10
- 13. Crash of Flight 1112004-02-17
- 14. Life and Death in the War Zone2004-03-02
- 15. Hunt for the Supertwister2004-03-30
- 18. Battle Plan Under Fire2004-05-04
