Are We Alone in the Universe?

“There are a couple hundred billion stars just in our galaxy and at least half of them probably have planets so that’s a hundred billion planetary systems. How many planets in each system? Well, we’ve got eight in ours. You know, let’s say five. That’s a half trillion. That’s five hundred billion planets out there, and keep in mind there are a hundred billion other galaxies. So, you know, to think ‘hey, look man, this is the only place where there is anything interesting happening,’ I mean you’ve got to really audacious to take that point of view.”

Series exploring topical scientific issues. The search for extra-terrestrial life has been going for 50 years – but there’s been a recent breakthrough. Astronomers have discovered a new planet called Gliese 581 c. It is the most Earth-like planet ever found. It orbits a star and may have habitats capable of supporting life. NASA hopes to find 50 more Earth-like planets by the end of the decade, all of which increases the chance that alien life has begun elsewhere. (Excerpt from main website)

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