This episode of Horizon examines 20 years of research which has led to a new theory on how the earth's crust was made.
| Title | The Day the Earth Melted |
|---|---|
| Genres | Documentary |
| Release Date | 1991-02-25 |
| Episode Runtime | 01 Hours 00 Minutes |
| Season Number | 28 |
| Episode Number | 8 |
| Production Companies | Unknown |
