Prologue
Episode: 1x01 | Airdate: Apr 3, 2011
Season 1
The Mystery of the Universe's Bubbles
Episode: 1x02 | Airdate: Apr 5, 2011
Extraterrestrial Life - From Fiction to Fact?
Episode: 1x03 | Airdate: Apr 12, 2011
Dark Matter - Racing to Unlock Its Mysteries
Episode: 1x04 | Airdate: Apr 19, 2011
Our Extraordinary Sun -- Facing a Rare Solar Phenomenon
Episode: 1x08 | Airdate: Jun 7, 2011
Betelgeuse - Death of a Super Star
Episode: 1x10 | Airdate: Jun 28, 2011
Seers of the Heavens - The Maya
Episode: 1x11 | Airdate: Jun 5, 2011
Space Shuttle - Launching 30 Years of Dreams
Episode: 1x12 | Airdate: Jul 12, 2011
Impact! Looking Out for Asteroids
Episode: 1x13 | Airdate: Jul 19, 2011
Knowing Without Seeing
Episode: 1x20 | Airdate: Nov 15, 2011
Season 2
The Lunar Rover - Apollo's Final Challenge
Episode: 2x02 | Airdate: Jan 24, 2012
Space Tourism - A New Chapter in Space History
Episode: 2x04 | Airdate: Feb 14, 2012
Illuminating the Magellanic Clouds
Episode: 2x10 | Airdate: Apr 12, 2012
Signals from Outer Space?
Episode: 2x12 | Airdate: May 10, 2012
Monster Black Holes - The Invisible Hands of the Universe
Episode: 2x17 | Airdate: Jun 14, 2012
Saturn's Moon Titan - Another Earth?
Episode: 2x31 | Airdate: Dec 6, 2012
Season 3
First Stars - Let There Be Light!
Episode: 3x06 | Airdate: Mar 14, 2013
The Nebra Sky Disc -- Mysterious Astronomical Device
Episode: 3x18 | Airdate: Jul 18, 2013
The Grey Mars - Roving Mars in Search of a Habitable Environment
Episode: 3x20 | Airdate: Aug 29, 2013
The Orion Nebula - Voyage to a Stellar Nursery
Episode: 3x26 | Airdate: Oct 31, 2013
Season 4
Terraforming Mars - Making a New Earth on Mars
Episode: 4x03 | Airdate: Feb 13, 2014
Meteorites - Treasures from Space
Episode: 4x06 | Airdate: Mar 27, 2014
Himiko and Orochi, Monster Galaxies Unveiled
Episode: 4x07 | Airdate: Apr 3, 2014