What did the Soviets discover in the Kola Superdeep well at a depth of 12,262 meters?
13:52
The Soviet's Secret Mars Landing (declassified)
29:30
This Is Why You Can’t Go To Antarctica
13:09
Scientists Stunned To Discover What's Hidden Under The Ice In Greenland
24:56
Engineers Can't Believe This Mechanism Works
13:29
Overbudget: Britain's $57BN Nuclear Nightmare
16:15
The Soviet Obsession With Venus Revealed
43:25
Unearthed: Mayan City of Blood (S1, E1) | Full Episode
11:52