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Discovering the Big Bang

Clip: Episode 1 | 5m 28sVideo has Closed Captions

In 1923, Edwin Hubble began the manual process of photographing the Andromeda Nebula.

In 1923, Edwin Hubble began the manual process of photographing the Andromeda Nebula. He spent many nights at the Hooker telescope collecting data and discovered that Andromeda was not a cluster of stars in our own galaxy but in fact a separate galaxy.

04/17/2019 | Rating TV-PG

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Glass - A New Wonder Material

Video has Closed Captions

Clip: Ep1 | 4m 9s | Learn how clear glass was born - and gave us spectacles almost 800 years ago. (4m 9s)

How Far Are the Stars?

Video has Closed Captions

Clip: Ep1 | 4m 44s | How a New York property boom led to the discovery of the distance to the stars. (4m 44s)

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