Horizon: Season 46 (2009)
This season started on January 26, 2009. The table lists episodes with recorded air dates up to September 28, 2026.
| Ep | Title and air date | My place |
|---|---|---|
| 1 | Why Are Thin People Not Fat? · 60 min | |
| 2 | Cannabis: The Evil Weed? · 60 min | |
| 3 | Why Do We Dream? · 60 min | |
| 4 | Can We Make a Star on Earth? · 60 min | |
| 5 | The Secret Life of Your Bodyclock · 60 min | |
| 6 | What's the Problem with Nudity? · 60 min | |
| 7 | How to Survive a Disaster · 60 min | |
| 8 | Who Do You Want Your Child to Be? · 60 min | |
| 9 | Why Can't We Predict Earthquakes? · 60 min | |
| 10 | Alan and Marcus Go Forth and Multiply · 60 min | |
| 11 | How Violent Are You? · 60 min | |
| 12 | Do I Drink Too Much? · 60 min | |
| 13 | The Secret You · 60 min | |
| 14 | Fix Me · 60 min | |
| 15 | Who's Afraid of a Big Black Hole? · 60 min | |
| 16 | Why Do We Talk? · 60 min | |
| 17 | How Long is a Piece of String? · 60 min | |
| 18 | How Many People Can Live on Planet Earth? |
