Horizon - Season 24 Episode 7
Report on exploration into releasing energy sources which came from outer space during the formation of the earth, 4,500 million years ago, and have lain dormant under the earth's crust. In Sweden a five mile deep drill hole was made to unleash this energy.
First Air Date : 1964-02-04
Last Air date : 2024-07-22
Runtime : 57 minutes
Genre : Documentary
Cast :
Crew :
Quality : 
Subtitles :
- Season 24 : Episode 11987-01-05
- Season 24 : Episode 21987-01-12
- Season 24 : Episode 31987-01-19
- Season 24 : Episode 41987-01-26
- Season 24 : Episode 51987-02-02
- Season 24 : Episode 61987-02-09
- Season 24 : Episode 71987-02-16
- Season 24 : Episode 81987-02-23
- Season 24 : Episode 91987-03-02
- Season 24 : Episode 101987-03-09
- Season 24 : Episode 111987-03-16
- Season 24 : Episode 121987-03-23
- Season 24 : Episode 131987-03-30
- Season 24 : Episode 141987-04-06
- Season 24 : Episode 151987-04-13
- Season 24 : Episode 161987-05-11
- Season 24 : Episode 171987-05-18
- Season 24 : Episode 191987-06-01
- Season 24 : Episode 201987-06-08
- Season 24 : Episode 211987-05-15
- Season 24 : Episode 221987-06-22
- Season 24 : Episode 231987-06-29
