A users' guide to the cosmos, from the Big Bang to galaxies, stars, planets and moons: where did it all come from and how does it all fit together? A primer for anyone who has ever looked up at the night sky and wondered.
| Title | Air Date | Duration | ||
|---|---|---|---|---|
| Season 1 | Episode 1 | Big Bang | 2010-04-25 | 60 min |
| Season 1 | Episode 2 | Black Holes | 2010-05-02 | 60 min |
| Season 1 | Episode 3 | Galaxies (aka Alien Galaxies) | 2010-05-10 | 60 min |
| Season 1 | Episode 4 | Extreme Stars | 2010-05-10 | 60 min |
| Season 1 | Episode 5 | Supernovas | 2010-05-17 | 60 min |
| Season 1 | Episode 6 | Planets (aka Extreme Planets) | 2010-05-17 | 60 min |
| Season 1 | Episode 7 | Solar Systems | 2010-05-24 | 60 min |
| Season 1 | Episode 8 | Moons (aka Alien Moons) | 2010-05-24 | 60 min |
| Season 2 | Episode 1 | Volcanoes - The Furnaces of Life | 2012-07-11 | 60 min |
| Season 2 | Episode 2 | Megastorms - The Winds of Creation | 2012-07-18 | 60 min |
| Season 2 | Episode 3 | Exoplanets - Planets from Hell | 2012-07-25 | 60 min |
| Season 2 | Episode 4 | Megaflares - Cosmic Firestorms | 2012-08-01 | 60 min |
| Season 2 | Episode 5 | Extreme Orbits - Clockwork and Creation | 2012-08-08 | 60 min |
| Season 2 | Episode 6 | Comets - Frozen Wanderers | 2012-08-15 | 60 min |
| Season 2 | Episode 7 | Asteroids - Worlds That Never Were | 2012-08-22 | 60 min |
| Season 2 | Episode 8 | Birth of the Earth | 2012-08-29 | 60 min |
| Season 3 | Episode 1 | Journey from the Center of the Sun | 2014-07-09 | 60 min |
| Season 3 | Episode 2 | The End of the Universe | 2014-07-16 | 60 min |
| Season 3 | Episode 3 | Jupiter: Destroyer or Savior? | 2014-07-23 | 60 min |
| Season 3 | Episode 4 | First Second of the Big Bang | 2014-07-30 | 60 min |
| Season 3 | Episode 5 | Is Saturn Alive? | 2014-08-06 | 60 min |
| Season 3 | Episode 6 | Weapons of Mass Extinction | 2014-08-13 | 60 min |
| Season 3 | Episode 7 | Did a Black Hole Build the Milky Way? | 2014-08-20 | 60 min |
| Season 3 | Episode 8 | Our Voyage to the Stars (aka Starman) | 2014-08-27 | 60 min |
| Season 3 | Episode 9 | The Search for a Second Earth | 2014-09-03 | 60 min |
| Season 4 | Episode 1 | How the Universe Built Your Car | 2015-07-14 | 60 min |
| Season 4 | Episode 2 | Earth: Venus's Evil Twin | 2015-07-21 | 60 min |
| Season 4 | Episode 3 | Monster Black Hole | 2015-07-28 | 60 min |
| Season 4 | Episode 4 | Edge of the Solar System | 2015-08-04 | 60 min |
| Season 4 | Episode 5 | Dawn of Life | 2015-08-11 | 60 min |
| Season 4 | Episode 6 | Secret History of the Moon | 2015-08-18 | 60 min |
| Season 4 | Episode 7 | The First Oceans | 2015-08-25 | 60 min |
| Season 4 | Episode 8 | Forces of Mass Construction (aka Magnetism) | 2015-09-01 | 60 min |
| Season 5 | Episode 1 | Mystery of Planet 9 | 2016-11-29 | 60 min |
| Season 5 | Episode 2 | Black Holes: The Secret Origin | 2016-12-06 | 60 min |
| Season 5 | Episode 3 | Secret History of Pluto | 2017-01-03 | 60 min |
| Season 5 | Episode 4 | Stars That Kill | 2017-01-10 | 60 min |
| Season 5 | Episode 5 | The Universe's Deadliest | 2017-01-17 | 60 min |
| Season 5 | Episode 6 | Life and Death on the Red Planet | 2017-01-24 | 60 min |
| Season 5 | Episode 7 | The Dark Matter Enigma | 2017-01-31 | 60 min |
| Season 5 | Episode 8 | Strangest Alien Worlds | 2017-02-07 | 60 min |
| Season 6 | Episode 1 | Are Black Holes Real? | 2018-01-09 | 60 min |
| Season 6 | Episode 2 | Twin Suns: The Alien Mysteries | 2018-01-16 | 60 min |
| Season 6 | Episode 3 | Dark History of the Solar System | 2018-01-23 | 60 min |
| Season 6 | Episode 4 | Death of the Milky Way | 2018-01-30 | 60 min |
| Season 6 | Episode 5 | Uranus & Neptune: Rise of the Ice Giants | 2018-02-06 | 60 min |
| Season 6 | Episode 6 | Secret History of Mercury | 2018-02-13 | 60 min |
| Season 6 | Episode 7 | The Quasar Enigma | 2018-02-20 | 60 min |
| Season 6 | Episode 8 | Strange Lives of Dwarf Planets | 2018-02-27 | 60 min |
| Season 6 | Episode 9 | War on Asteroids | 2018-03-06 | 60 min |
| Season 6 | Episode 10 | Mystery of Spacetime | 2018-03-13 | 60 min |
| Season 7 | Episode 1 | Nightmares of Neutron Stars | 2019-01-08 | 60 min |
| Season 7 | Episode 2 | When Supernovas Strike | 2019-01-15 | 60 min |
| Season 7 | Episode 3 | The Interstellar Mysteries | 2019-01-22 | 60 min |
| Season 7 | Episode 4 | How Black Holes Made Us | 2019-01-29 | 60 min |
| Season 7 | Episode 5 | Secret World of Nebulas | 2019-02-05 | 60 min |
| Season 7 | Episode 6 | Did the Big Bang Really Happen? | 2019-02-12 | 60 min |
| Season 7 | Episode 7 | Battle of the Dark Universe | 2019-02-19 | 60 min |
| Season 7 | Episode 8 | Hunt for Alien Life | 2019-02-26 | 60 min |
| Season 7 | Episode 9 | Finding the New Earth | 2019-03-05 | 60 min |
| Season 7 | Episode 10 | Cassini's Final Secrets | 2019-03-12 | 60 min |
| Season 8 | Episode 1 | Asteroid Apocalypse: The New Threat | 2020-01-02 | 120 min |
| Season 8 | Episode 2 | NASA's Journey to Mars | 2020-01-09 | 60 min |
| Season 8 | Episode 3 | Hunt for Alien Evidence | 2020-01-16 | 60 min |
| Season 8 | Episode 4 | Death of the Last Stars | 2020-01-23 | 60 min |
| Season 8 | Episode 5 | Secrets of Time Travel | 2020-01-30 | 60 min |
| Season 8 | Episode 6 | When NASA Met Jupiter | 2020-02-06 | 60 min |
| Season 8 | Episode 7 | Edge of the Universe | 2020-02-13 | 60 min |
| Season 8 | Episode 8 | Monsters of the Milky Way | 2020-02-20 | 60 min |
| Season 8 | Episode 9 | Earth's Death Orbit | 2020-02-27 | 60 min |
| Season 9 | Episode 1 | Journey to a Black Hole | 2021-03-24 | 120 min |
| Season 9 | Episode 2 | Mission to a Comet | 2021-03-31 | 60 min |
| Season 9 | Episode 3 | Secrets of the Sun | 2021-04-07 | 60 min |
| Season 9 | Episode 4 | Aliens of the Microcosmos | 2021-04-14 | 60 min |
| Season 9 | Episode 5 | Curse of the White Dwarf | 2021-04-21 | 60 min |
| Season 9 | Episode 6 | War of the Galaxies | 2021-04-28 | 60 min |
| Season 9 | Episode 7 | The Next Supernova | 2021-05-05 | 60 min |
| Season 9 | Episode 8 | Secret Lives of Neutrinos | 2021-05-12 | 60 min |
| Season 9 | Episode 9 | Birth of the Monster Black Holes | 2021-05-19 | 60 min |
| Season 9 | Episode 10 | Gravitational Waves Revealed | 2021-05-26 | 60 min |
| Season 9 | Episode 11 | Mystery of Alien Worlds | 2021-06-02 | 60 min |
| Season 10 | Episode 1 | Secrets of the Cosmic Web | 2022-03-06 | 60 min |
| Season 10 | Episode 2 | Curse of the Cosmic Rays | 2022-03-13 | 60 min |
| Season 10 | Episode 3 | Hunt for Dark Matter | 2022-03-20 | 60 min |
| Season 10 | Episode 4 | Dark History of Earth | 2022-03-27 | 60 min |
| Season 10 | Episode 5 | Hunt for the Universe's Origin | 2022-04-03 | 60 min |
| Season 10 | Episode 6 | Voyager's Ultimate Mission | 2022-04-10 | 60 min |
| Season 11 | Episode 1 | The Moons of Saturn | 2023-03-05 | 60 min |
| Season 11 | Episode 2 | A Robot's Guide to Mars | 2023-03-12 | 60 min |
| Season 11 | Episode 3 | Most Violent Event in the Universe | 2023-03-19 | 60 min |
| Season 11 | Episode 4 | Asteroid: Countdown to Catastrophe | 2023-03-26 | 60 min |
| Season 11 | Episode 5 | Solar System Special | 2023-04-02 | 120 min |
