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PBS Space Time
Why Haven't We Found Alien Life?
Season 2
Episode 7
With millions of Earth like planets around sun like stars in our galaxy alone, why don't we see intelligent alien life? Or any other life for that matter? It gets especially weird when you factor in new scientific revelations that life on Earth occurred crazy fast! So if you want to help us theorize on the real reasons we haven't found alien life, you should watch today's episode of Space Time!
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12:39
One of the most important reasons we go to space is to know our own planet better.
17:14
Can something that exists be bad science?
18:56
It may be that our very DNA inherited its twist from the underlying handedness of reality.
17:21
Did God have any choice in creating the world? So asked Albert Einstein
18:19
What if, just before we reach the bottom, we find out that reductionism fails?
19:03
The biggest news in cosmology in recent years is that dark energy may be fading away.
18:50
Does this also explain why there are no aliens?
16:58
Quantum energy teleportation may be as close as we get to transporter beams. But how close is that?
14:50
Why is there any matter in the universe? A new antimatter breakthrough at LHC holds clues.
16:30
There’s an extremely good chance that Earth once did have a ring system.
17:23
How is it possible to tell if a space rock will one day collide with the Earth?
15:58
Did you know that many of us have up to 4% neanderthal DNA?