|Episode Online Video|
S03, E08 (First Aired:
Scientists are working on new propulsion systems that would allow travel to distant worlds.
S04, E01 (First Aired:
The history of the Universe lies beneath the hood of your car; 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.
S04, E07 (First Aired:
For 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.
S01, E01 (First Aired:
How the universe came into existence out of nothing and grew from a miniscule point, smaller than an atomic particle.
S03, E06 (First Aired:
The universe's weapons of extinction; asteroids strike; planets collide; black holes blast out death rays; volcanoes erupt and ice engulfs the plane.
S03, E07 (First Aired:
Research suggest that super massive black hole might be the creator of the Milky Way.
S03, E01 (First Aired:
Examining how light travels out from the core of the sun through gravity and magnetism.
S04, E06 (First Aired:
The incredible secrets of the moon are revealed; the moon might be responsible for life on Earth.
S01, E04 (First Aired:
The story of how stars were made by the universe and how stars went on to engineer everything else in that universe.
S04, E04 (First Aired:
Huge magnetic bubbles millions of miles wide; strange invisible matter, and a death star tearing through bands of icy comets, flinging them into violent orbits.
S04, E03 (First Aired:
A look inside the supermassive black hole in the center of the Milky Way to discover terrifying secrets about parallel universes, wormholes, and space-time.
S04, E02 (First Aired:
There is a planet in the solar system covered in thick, dense clouds and roasted by colossal temperatures, and is a vision of Earth's future; taking a look at Venus to understand how Earth will be destroyed.
S02, E02 (First Aired:
Examining chaotic weather to help determine whether we are alone in the universe.
S04, E05 (First Aired:
Discovering how life on Earth came to be; the possibility that life on Earth come from another planet.
S02, E04 (First Aired:
Could the earth be in the line of fire from the dangerous megaflares from the sun.
S02, E01 (First Aired:
Scientists discover volcanoes on alien worlds and wonder whether life exists there.