Previews + Extras
Shattering the Spheres
S1 E3 - 2m 16s
Danish Astronomer Tycho Brahe's observations of the Great Comet of 1577 overturn 1,500 years of scientific belief when he uses them to prove that planets do not orbit inside concentric crystalline spheres.
The Marine Chronometer
S1 E3 - 2m 9s
Take a closer look at John Harrison's Marine Chronometer, the device that solved the longitude problem.
Cannon Shot to the Moon
S1 E3 - 2m 4s
Hear Jules Verne's story of an American Gun Club, which shot a projectile containing three men to the moon, from a giant cannon.
The Universe is Expanding
S1 E3 - 2m 56s
Georges Lemaître, Belgian priest and astronomer, used Albert Einstein's equations from the Theory of General Relativity to propose that the universe is expanding.
Episode 3 Preview | Our Place in the Universe
S1 E3 - 30s
In Episode 3, we complete the puzzle of our ancient skies, collecting the missing pieces required for an accurate model of our universe. We break through the spheres that defined our skies for millennia, abandon the long-held idea of circular orbits, discover new neighbors in our solar system, and begin to comprehend the enormity of our ever-growing universe.
Similar Shows
Breakthrough: The Ideas That Changed the World
Science and Nature
Crash Course Astronomy
Science and Nature
Magical Land of Oz
Science and Nature
Nature's Great Race
Science and Nature
Great Yellowstone Thaw
Science and Nature
Ireland's Wild Coast
Science and Nature
Crazy
Science and Nature
The Age of Nature
Science and Nature
Extinction: The Facts
Science and Nature
Greta Thunberg: A Year to Change the World
Science and Nature
WETA Passport
Stream tens of thousands of hours of your PBS and local favorites with WETA Passport whenever and wherever you want. Catch up on a single episode or binge-watch full seasons before they air on TV.