The Planets RevisitedLife: Black Holes Clips

1. River channels on Mars

   Duration: 01:16

2. Life on Europa?

   Duration: 01:01

3. Indestructible life

   Duration: 04:51

4. Mariner 2 seeks life on Venus

   Duration: 01:40

5. Extreme life on Earth

   Duration: 02:14

6. Viking tests for Martian life

   Duration: 03:52

7. Percival Lowell maps Mars

   Duration: 00:42