Use the Drake equation to calculate the number of civilisations in our galaxy.
For fifty years, the Search for Extra Terrestrial Intelligence has been scanning the galaxy for a message from an alien civilisation. So far to no avail, but a recent breakthrough suggests they may one day succeed.
Horizon joins the planet hunters who've discovered a new world called Gliese 581 c. It is the most Earth-like planet yet found around another star and may have habitats capable of supporting life. NASA too hopes to find fifty more Earth-like planets by the end of the decade, all of which dramatically increases the chance that alien life has begun elsewhere in the galaxy.
| Title | Are we Alone in the Universe? |
|---|---|
| Genres | Documentary |
| Release Date | 2008-03-04 |
| Episode Runtime | 01 Hours 00 Minutes |
| Season Number | 45 |
| Episode Number | 8 |
| Production Companies |
No cast information available.
