Season 4
8 episodes · Jul 14, 2015
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S4E1How the Universe Built Your Car
Jul 14, 201542mBeneath the hood of your car lies the history of the Universe. The iron in your chassis, the gold in your stereo and the copper in your electronics all owe their existence to violent cosmic events that took place billions of years ago.
S4E2Earth, Venus's Evil Twin
Jul 21, 201542mAn examination of Venus; and what it may indicate about Earth's future.
S4E3Monster Black Hole
Jul 28, 201542mA look inside the supermassive black hole in the center of the Milky Way to discover terrifying secrets about parallel universes, wormholes, and space-time.
S4E4Edge of the Solar System
Aug 4, 201542mHuge magnetic bubbles millions of miles wide; strange invisible matter, and a death star tearing through bands of icy comets, flinging them into violent orbits.
S4E5Dawn Of Life
Aug 11, 201542mDiscovering how life on Earth came to be; the possibility that life on Earth come from another planet.
S4E6Secret History of the Moon
Aug 18, 201542mThe incredible secrets of the moon are revealed; the moon might be responsible for life on Earth.
S4E7The First Oceans
Aug 25, 201542mFor years, scientists suspected that the oceans came from molecules delivered to Earth from distant stars by asteroids, but a new discovery suggests that their true origins may be more exotic.
S4E8Forces of Mass Construction
Sep 1, 201542mScientists attempt to understand how this strange force of magnetism works.