Horizon
Season 45 Episode 8 - Are we Alone in the Universe?
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.
Episodes in Season 45
How to Kill a Human Being
60 min
Total Isolation
60 min
What on Earth is Wrong With Gravity?
60 min
Is Alcohol Worse than Ecstasy?
60 min
How to Make Better Decisions
60 min
How to Live to be 101
60 min
Prof. Regan's Supermarket Secrets
60 min
Are we Alone in the Universe?
60 min
How Much is Your Dead Body Worth?
60 min
How Does Your Memory Work?
60 min
The President's Guide to Science
60 min
How Mad Are You? (1 of 2)
60 min
How Mad Are You? (2 of 2)
60 min
Jimmy's GM Food Fight
60 min
Do You Know What Time It Is?
60 min
Allergy Planet
60 min
Where's My Robot?
60 min
