What We Still Don't Know-Episode 3-Are We Real?

costello74
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These programs focus on: Was there a beginning? Whether we are alone? What's the future of the cosmos?
What is the nature of reality? Why Are We Here?
With each advance, new questions come into sharper focus. The key issue is what we still don't know.
Everything you thought you knew about the universe is wrong. It's made of atoms, right? Wrong. Atoms only account for a measly 15% of everything that exists. The mass of the universe consists of something so mysterious and elusive that it has been dubbed 'dark matter'.

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