Horizon
The Day the Earth Melted (1991x8)
Uitzenddatum: Feb 25, 1991
This episode of Horizon examines 20 years of research which has led to a new theory on how the earth's crust was made.
- in première gegaan: Feb 1964
- Afleveringen: 1206
- Volgers: 89
- Lopend
- BBC Two
- Donderdag op 21
