[PHYSICS MODULE] The Big Bang Theory

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This module covers video discussions about The Big Bang Theory.

The Big Bang Theory

How did everything get started? Has the universe a beginning or was it here since forever? Well, evidence suggests that there was indeed a starting point to ...

In which John Green, Hank Green, and Emily Graslie teach you about, well, everything. Big History is the history of everything. We're going to start with the...

Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING! Knowing that the universe is expanding and how quickly its expanding ...

In which John Green, Hank Green, and Emily Graslie teach you about what happened in the Universe after the big bang. They'll teach you about cosmic backgroun...

Origin of the Universe

How old is the universe, and how did it begin? Throughout history, countless myths and scientific theories have tried to explain the universe's origins. The ...