Aired Saturday June 12, 8:15am - 9:15amon BBC Two
Human UniverseSeries 1 Episode 3: Are We Alone?
We live in a galaxy with upwards of 200 billion star systems. Many of which will be home to planets that could support life. The question is: is anybody there? After all, if the universe has thrown up one intelligent civilisation, why not more?
- Documentary / Science
- Original air date
Cast and crew