NOVA: Season 31
This season started on September 30, 2003. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Infinite Secrets · 55 min | |
| 2 | Who Killed the Red Baron? · 55 min | |
| 3 | The Elegant Universe: Einstein's Dream (1) · 55 min | |
| 4 | The Elegant Universe: String's the Thing (2) · 55 min | |
| 5 | The Elegant Universe: Welcome to the 11th Dimension (3) · 55 min | |
| 6 | Wright Brothers' Flying Machine · 55 min | |
| 7 | Magnetic Storm · 55 min | |
| 8 | Volcano Above the Clouds · 55 min | |
| 9 | MARS Dead or Alive · 55 min | |
| 10 | Secrets of the Crocodile Caves · 55 min | |
| 11 | Dogs and More Dogs · 55 min | |
| 12 | Descent Into the Ice · 55 min | |
| 13 | Crash of Flight 111 · 55 min | |
| 14 | Life and Death in the War Zone · 55 min | |
| 15 | Hunt for the Supertwister · 55 min | |
| 16 | World in the Balance: The People Paradox (1) · 55 min | |
| 17 | World in the Balance: China Revs Up (2) · 55 min | |
| 18 | Battle Plan Under Fire · 55 min |
