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Ancient Skies

The Universe is Expanding

Georges Lemaître proposes that the universe is expanding.

Aired 08/07/2019 | Rating TV-PG

Ancient Skies

The Universe is Expanding

Clip: Episode 3 | 2m 56sVideo has Closed Captions

Georges Lemaître proposes that the universe is expanding.

Georges Lemaître, Belgian priest and astronomer, used Albert Einstein's equations from the Theory of General Relativity to propose that the universe is expanding.

Aired 08/07/2019 | Rating TV-PG

Cannon Shot to the Moon

Video has Closed Captions

Hear Jules Verne's story of a cannon shot to the moon. (2m 4s)

Episode 3 Preview | Our Place in the Universe

Video has Closed Captions

A cast of scientific pioneers reshape our solar system. (30s)

The Marine Chronometer

Video has Closed Captions

Take a closer look at John Harrison's Marine Chronometer. (2m 9s)

Shattering the Spheres

Video has Closed Captions

Astronomer Tycho Brahe overturns 1,500 years of scientific belief. (2m 16s)

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