What We Still Don't Know - 2 of 3

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WHY ARE WE HERE? 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 t...

WHY ARE WE HERE?
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’.

Astronomer Sir Martin Rees Investigates
A Channel 4 (UK) Documentary

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