FOX - Cosmos A Spacetime Odyssey (2014) Part 4 A Sky Full of Ghosts

More than three decades after the debut of Carl Sagan's ground-breaking and iconic series, “Cosmos: A Personal Voyage,” it's time once again to set sail for the stars.

Part 4: A Sky Full of Ghosts

Explores how light, time and gravity affects our perception of the universe. Including how the work of Isaac Newton, William Herschel, Michael Faraday, and James Clerk Maxwell contributed to understanding the nature of electromagnetic waves and gravitational force, and how this work led towards Albert Einstein's Theory of Relativity, that the speed of light is a fundamental constant of the universe and gravity can be seen as distortion of the fabric of space-time.

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