Deep Impact
- Episode aired Sep 8, 2010
- TV-G
- 22m
90% of the rocks in space are big enough to destroy civilization. And it's not a question of if they'll hit - it's a question of when. Dr Michio Kaku is on a mission to save planet Earth.90% of the rocks in space are big enough to destroy civilization. And it's not a question of if they'll hit - it's a question of when. Dr Michio Kaku is on a mission to save planet Earth.90% of the rocks in space are big enough to destroy civilization. And it's not a question of if they'll hit - it's a question of when. Dr Michio Kaku is on a mission to save planet Earth.