From the planets to the stars and out to the edge of the unknown, history and science collide in a wondrous yet deadly adventure through space and time.
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The peak run. Top 40% of seasons by average rating — consecutive, with an average of 7.95.
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David Ackroyd
Erik Thompson
All 39 episodes plotted by IMDb rating
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This may take a moment for shows with many seasons.
14 episodes • 2007Avg: 8.0Golden Era
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Secrets of the Sun | May 29, 2007 | 8.2 |
| 2 | Mars: The Red Planet | Jun 5, 2007 | 8.0 |
| 3 | The End of the Earth: Deep Space Threats to our Planet | Jun 12, 2007 | 7.7 |
| 4 | Jupiter: The Giant Planet | Jun 19, 2007 | 7.0 |
| 5 | The Moon | Jun 26, 2007 | 8.5 |
| 6 | Spaceship Earth | Jul 10, 2007 | 7.5 |
| 7 | The Inner Planets: Mercury & Venus | Jul 17, 2007 | 7.0 |
| 8 | Saturn: Lord of the Rings | Jul 24, 2007 | 8.0 |
| 9 | Alien Galaxies | Jul 31, 2007 | 0.0 |
| 10 | Life and Death of a Star | Aug 7, 2007 | 9.0 |
| 11 | The Outer Planets | Aug 14, 2007 | 8.0 |
| 12 | The Most Dangerous Place in the Universe | Aug 21, 2007 | 7.0 |
| 13 | Search for ET | Aug 28, 2007 | 9.0 |
| 14 | Beyond the Big Bang | Sep 4, 2007 | 8.5 |
18 episodes • 2007Avg: 6.6Valley of Despair
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Alien Planets | Nov 27, 2007 | 8.0 |
| 2 | Cosmic Holes | Dec 4, 2007 | 7.0 |
| 3 | Mysteries of the Moon | Dec 11, 2007 | 6.0 |
| 4 | The Milky Way | Dec 18, 2007 | 8.0 |
| 5 | Alien Moons | Jan 8, 2008 | 6.0 |
| 6 | Dark Matter | Jan 15, 2008 | 5.0 |
| 7 | Astrobiology | Jan 29, 2008 | 5.0 |
| 8 | Space Travel | Feb 5, 2008 | 6.0 |
| 9 | Supernovas | Feb 12, 2008 | 7.0 |
| 10 | Constellations | Feb 19, 2008 | 7.0 |
| 11 | Unexplained Mysteries | Feb 26, 2008 | 6.0 |
| 12 | Cosmic Collisions | Mar 4, 2008 | 7.0 |
| 13 | Colonizing Space | Mar 11, 2008 | 6.5 |
| 14 | Nebulas | Apr 1, 2008 | 7.0 |
| 15 | Wildest Weather in the Cosmos | Apr 8, 2008 | 7.0 |
| 16 | Biggest Things in Space | Apr 15, 2008 | 6.0 |
| 17 | Gravity | Apr 22, 2008 | 7.0 |
| 18 | Cosmic Apocalypse | Apr 29, 2008 | 7.0 |
12 episodes • 2008Avg: 10.0
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Deep Space Disasters | Nov 11, 2008 | 0.0 |
| 2 | Parallel Universes | Nov 18, 2008 | 10.0 |
| 3 | Light Speed | Nov 25, 2008 | 0.0 |
| 4 | Sex in Space | Dec 2, 2008 | 0.0 |
| 5 | Alien Faces | Dec 9, 2008 | 0.0 |
| 6 | Deadly Comets and Meteors | Dec 16, 2008 | 0.0 |
| 7 | Living in Space | Dec 23, 2008 | 0.0 |
| 8 | Stopping Armageddon | Jan 6, 2009 | 0.0 |
| 9 | Another Earth | Jan 13, 2009 | 0.0 |
| 10 | Strangest Things | Jan 27, 2009 | 0.0 |
| 11 | Edge of Space | Feb 3, 2009 | 0.0 |
| 12 | Cosmic Phenomena | Feb 3, 2009 | 0.0 |
12 episodes • 2009
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Death Stars | Aug 18, 2009 | 0.0 |
| 2 | The Day the Moon Was Gone | Aug 25, 2009 | 0.0 |
| 3 | It Fell From Space | Sep 1, 2009 | 0.0 |
| 4 | Biggest Blasts | Sep 8, 2009 | 0.0 |
| 5 | The Hunt for Ringed Planets | Sep 15, 2009 | 0.0 |
| 6 | 10 Ways to Destroy the Earth | Sep 22, 2009 | 0.0 |
| 7 | The Search for Cosmic Clusters | Sep 29, 2009 | 0.0 |
| 8 | Space Wars | Oct 6, 2009 | 0.0 |
| 9 | Liquid Universe | Oct 20, 2009 | 0.0 |
| 10 | Pulsars & Quasars | Oct 27, 2009 | 0.0 |
| 11 | Science Fiction, Science Fact | Nov 3, 2009 | 0.0 |
| 12 | Extreme Energy | Nov 10, 2009 | 0.0 |
8 episodes • 2010
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | 7 Wonders of the Solar System | Jul 29, 2010 | 0.0 |
| 2 | Mars: The New Evidence | Aug 5, 2010 | 0.0 |
| 3 | Magnetic Storm | Aug 12, 2010 | 0.0 |
| 4 | Time Travel | Aug 19, 2010 | 0.0 |
| 5 | Secrets of the Space Probes | Aug 26, 2010 | 0.0 |
| 6 | Asteroid Attack | Sep 2, 2010 | 0.0 |
| 7 | Total Eclipse | Sep 16, 2010 | 0.0 |
| 8 | Dark Future of the Sun | Sep 23, 2010 | 0.0 |
7 episodes • 2011Avg: 7.0
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Catastrophes that Changed the Planets | Oct 25, 2011 | 0.0 |
| 2 | Nemesis: The Sun's Evil Twin | Nov 1, 2011 | 0.0 |
| 3 | How the Solar System was Made | Nov 8, 2011 | 0.0 |
| 4 | Crash Landing on Mars | Nov 22, 2011 | 0.0 |
| 5 | Worst Days on Planet Earth | Nov 29, 2011 | 0.0 |
| 6 | UFO: The Real Deal | Dec 13, 2011 | 0.0 |
| 7 | God and the Universe | Dec 20, 2011 | 7.0 |
7 episodes • 2012Avg: 7.9
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | How Big, How Far, How Fast | Apr 29, 2012 | 8.5 |
| 2 | Alien Sounds | May 6, 2012 | 0.0 |
| 3 | Our Place in the Milky Way | May 13, 2012 | 10.0 |
| 4 | Deep Freeze | May 20, 2012 | 10.0 |
| 5 | Microscopic Universe | Jun 3, 2012 | 0.0 |
| 6 | Ride the Comet | Jun 10, 2012 | 10.0 |
| 7 | When Space Changed History | Jun 17, 2012 | 1.0 |
4 episodes • 2014Avg: 7.0
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Stonehenge | Mar 1, 2014 | 7.0 |
| 2 | Pyramids | Mar 8, 2014 | 0.0 |
| 3 | Heavenly Destruction | Mar 15, 2014 | 0.0 |
| 4 | Star of Bethlehem | Mar 22, 2014 | 0.0 |
6 episodes • 2015
| # | Episode | Air Date | Rating |
|---|---|---|---|
| 1 | Omens of Doom | Apr 18, 2015 | 0.0 |
| 2 | The Eye of God | Apr 25, 2015 | 0.0 |
| 3 | Apocalyptic Visions | May 2, 2015 | 0.0 |
| 4 | Alien Worlds | May 9, 2015 | 0.0 |
| 5 | Predicting the Future | TBA | 0.0 |
| 6 | Roman Engineering | May 23, 2015 | 0.0 |
