The Universe

1. S01E01Secrets of the SunMay 29, 2007 7.8Behold the sun and all of it's glory. Learn all things about the sun ranging from its beginning to its death. Also learn about how stars wor
2. S01E02Mars: The Red PlanetJune 5, 2007 7.5Visit the planet most like Earth. There is a discussion of what life on Mars would be like and about the life forms that could've evolved th
3. S01E03The End of the Earth: Deep Space Threats to Our PlanetJune 12, 2007 7.8Asteroids, comets, gamma ray bursts and the sun all combine to make the Earth a dangerous place to live. NASA's top brass and other scientis
4. S01E04Jupiter: The Giant PlanetJune 19, 2007 7.0Jupiter poses many questions about our solar system. It is a powerful planet of gas whose flowing colors and spots are beautiful, but contai
5. S01E05The MoonJune 26, 2007 8.0The moon has comforted man for thousands of years. It's been everything from a god to a compass, and the only cosmic body human beings have
6. S01E06Spaceship EarthJuly 10, 2007 7.3Take a high performance ride through the formation of the third planet from the Sun, Earth... A survivor of one of the most violent "neighbo
7. S01E07The Inner Planets: Mercury & VenusJuly 17, 2007 7.0Examining Mercury and Venus. Included: exploring how the damages they've suffered from cosmic collisions and acid rain may serve as a warnin
8. S01E08Saturn: Lord of the RingsJuly 24, 2007 8.3Are the rings of Saturn a real celestial phenomenon or merely a cosmic Illusion? Technology allows the experts to get closer to the furthest
9. S01E09Alien GalaxiesJuly 31, 2007 8.3Our galaxy is one of hundreds of billions in the universe. View of universe through the Hubble telescope and go back almost all the way to t
10. S01E10Life and Death of a StarAugust 7, 2007 8.0Ignited by the power of the atom, burning with light, heat and wrath, stars are anything but peaceful. They collide, devour each other, and
11. S01E11The Outer PlanetsAugust 14, 2007 7.3This episode details outer lying planets and their moons. Included will be Uranus, Neptune, and Pluto. Using CGI, we will also see what alie
12. S01E12The Most Dangerous Place in the UniverseAugust 21, 2007 8.0Take a tour of the cosmic hot zones--black holes, galaxy mergers, gamma ray bursts and magnetars. Super black holes can literally lasso Eart
13. S01E13Search for ETAugust 28, 2007 8.0Are we alone? SETI--the Search for Extraterrestrial Intelligence--is a privately funded project using radio telescopes and optical telescope
14. S01E14Season's bestBeyond the Big BangSeptember 4, 2007 9.3The universe began with a massive expansion, billions and billions of years ago, and it continues to expand with every passing second. The i

Season 1 ranked & reviewed

1. S02E01Alien PlanetsNovember 27, 2007 8.0Have planet hunters finally found proof of other Earthlike worlds? Astronomers have now discovered over two hundred alien worlds, beyond our
2. S02E02Cosmic HolesDecember 4, 2007 8.0We know black holes exist, and now scientists are trying to confirm that other holes lurk in hyperspace.
3. S02E03Mysteries of the MoonDecember 11, 2007 8.0A closer look at the beacon in the dark sky reveals an ever-present source of myth, intrigue, controversy and unsolved mysteries
4. S02E04The Milky WayDecember 18, 2007 8.0We used to think that Earth was at the center of the universe, but now we know we're not even at the center of our own galaxy. Countless won
5. S02E05Alien MoonsJanuary 8, 2008 6.3Travel from the inner solar system to the Kuiper Belt and explore the moons surrounding the planets of the solar system. Many of these moons
6. S02E06Dark MatterJanuary 15, 2008 8.7Scientists have no idea what it is, but Dark Matter and Dark Energy make up 96% of the Universe. Dark Matter is everywhere. It passes throug
7. S02E07AstrobiologyJanuary 29, 2008 7.7Does life exist on other planets? Astrobiology is a visionary new science that searches for life in space by combining the disciplines of as
8. S02E08Season's bestSpace TravelFebruary 5, 2008 9.0When man finally broke free of the Earth's gravitational pull the dream of traveling to other planets became a reality. Today scientists are
9. S02E09SupernovasFebruary 12, 2008 8.3A stellar explosion, the supernova is the sensational death of a star. It can shine as bright as 100 billion suns and radiate as much energy
10. S02E10ConstellationsFebruary 19, 2008 8.5A constellation is a group of stars that are connected together to form a figure or picture. Explore some of the 88 official constellations
11. S02E11Unexplained MysteriesFebruary 26, 2008 8.3A look at myths and mysteries concerning the universe. Includes a possibility that life can be sustained on Mars, an examination of time tra
12. S02E12Cosmic CollisionsMarch 4, 2008 7.0Our universe is a cosmic shooting gallery, gravity is moving everything around & things will collide. Astronomers are attempting to unde
13. S02E13Colonizing SpaceMarch 11, 2008 9.0Space colonization is no longer the fodder of sci-fi, it's becoming a reality. The efforts are underway to establish a colony on Mars, how t
14. S02E14NebulasApril 1, 2008 7.3Nebulae are clouds of gas that aren't classified as stars, planets, moons or asteroids. Astronomers use the most sophisticated techniques to
15. S02E15Wildest Weather in the CosmosApril 8, 2008 6.7Imagine a tornado so powerful, it can form a planet or how about rain made of iron.
16. S02E16Biggest Things in SpaceApril 15, 2008 8.0Discover which is the largest planet, star, star cluster, constellation, black hole, volcano, galaxy, explosions, moon, storm, impact crater
17. S02E17GravityApril 22, 2008 8.7Explore how science and humanity discovered, overcame and utilized gravity.
18. S02E18Cosmic ApocalypseApril 29, 2008 9.0The Universe as we know it is condemned to death. Space, matter and even time will one day cease to exist and there's nothing we can do abou

Season 2 ranked & reviewed

1. S03E01Deep Space DisastersNovember 11, 2008 8.3In space travel there is a saying that the first 50 miles and the last 50 miles are the most dangerous. See how a single spark inside a spac
2. S03E02Season's bestParallel UniversesNovember 18, 2008 9.0Some of the world's leading physicists believe they have found startling new evidence showing the existence of universes other than our own.
3. S03E03Light SpeedNovember 25, 2008 8.8According to the laws of physics we can never travel faster than the speed of light...or can we? Light speed allows us to see things instant
4. S03E04Sex in SpaceDecember 2, 2008 7.7As man moves to colonize the cosmos, the realities of sexual relationships and reproduction need to be addressed. Probe the physiological, p
5. S03E05Alien FacesDecember 9, 2008 7.3They soar through the heavens, fly through the oceans and glide along land. But these are not creatures found on a wildlife safari. These ar
6. S03E06Deadly Comets and MeteorsDecember 16, 2008 7.3Asteroids and comets have left their imprint on planet Earth, literally. Since the turbulent formation of the solar system, these space rock
7. S03E07Living in SpaceDecember 23, 2008 8.0When mankind eventually leaves the cradle of Earth and ventures forth into the uncharted territories of the cosmos, where, and what form, wi
8. S03E08Stopping ArmageddonJanuary 6, 2009 8.0It sounds like a Hollywood blockbuster: a deadly asteroid is on a collision course with Earth. But in reality, it's only a matter of time be
9. S03E09Another EarthJanuary 13, 2009 8.3Could we be unique in the universe or is there another planet similar to earth somewhere in the cosmos? Is it possible that Alpha Centauri,
10. S03E10Strangest ThingsJanuary 27, 2009 7.3An exploration of mysterious phenomenon, including alcohol clouds in space, pulsar planets, the possibility of a planet beyond Neptune, and
11. S03E11Edge of SpaceFebruary 3, 2009 8.0The majority of space exploration has occurred in Low Earth Orbit, around 120 miles above sea level. For a cool $20 million, any person can
12. S03E12Cosmic PhenomenaFebruary 3, 2009 8.0There have been both helpful and harmful effects on life on Earth from cosmic effects. Cosmic Phenomena includes the beauty of the Aurora Bo

Season 3 ranked & reviewed

1. S04E01Death StarsAugust 18, 2009 8.0Season 4 opens with an exploration of dying stars, the process where stars become supernovas, and, occasionally, become the biggest blast in
2. S04E02The Day the Moon Was GoneAugust 25, 2009 7.5Without the moon, Earth would be a very different and desolate place today--four hours of sunlight with pitch-black nights, steady 100-mph w
3. S04E03It Fell from SpaceSeptember 1, 2009 8.0Every year, thousands of objects both natural and manmade plummet through our atmosphere and crash into the Earth. These menacing messengers
4. S04E04Biggest BlastsSeptember 8, 2009 7.5An examination of the most powerful explosions and blasts in the universe. Includes a look at the Mexico's Yucatán peninsula and the impact
5. S04E05The Hunt for Ringed PlanetsSeptember 15, 2009 8.5They are breathtaking, lethal and a constant source of surprise. The stunning rings of Saturn have mesmerized countless scientists over the
6. S04E0610 Ways to Destroy the EarthSeptember 22, 2009 8.0Experts cook up ways you could destroy the Earth, including swallowing it with a black hole, blowing it up with anti-matter, hurling it into
7. S04E07The Search for Cosmic ClustersSeptember 29, 2009 7.5They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clu
8. S04E08Space WarsOctober 6, 2009 8.0Outer space is already an essential part of America's ability to fight wars. Our military depends on satellites for many things, such as com
9. S04E09Liquid UniverseOctober 20, 2009 7.5On alien planets, they rain from the sky as scalding iron. On distant moons, even at hundreds of degrees below zero, they slosh around in pr
10. S04E10Pulsars & QuasarsOctober 27, 2009 8.0They sort of sound like the same phenomenon, but Pulsars and Quasars are very different. Pulsars are tiny--only a few miles across--but they
11. S04E11Season's bestScience Fiction. Science FactNovember 3, 2009 8.7Warp speed, transporters, wormholes and lasers--they are all staples of science fiction books, movies, and TV shows. But the fantastic world
12. S04E12Extreme EnergyNovember 10, 2009 7.5Ours is a universe of energy, from powerful jets ejected from black holes to the raw nuclear fury of our Sun. But, the total amount of energ

Season 4 ranked & reviewed

1. S05E017 Wonders of the Solar SystemJuly 29, 2010 8.0A close up look at some of the most astonishing wonders of our solar system, such as the geysers of Enceladus; Saturn's amazing rings; Jupit
2. S05E02Season's bestMars: The New EvidenceAugust 5, 2010 9.0A look for evidence of life on Mars which provides many clues that it now, or once had supported it; from the remains of lakes and rivers th
3. S05E03Magnetic StormAugust 12, 2010 8.0A look at magnetic storms – "Solar Katrinas" created by the sun with the power of ten-thousand nuclear weapons that could cause global elect
4. S05E04Time TravelAugust 19, 2010 8.7A look at time travel; how it could one day become reality; how Einstein's theory of relativity claims it is possible, and the probable resu
5. S05E05Secrets of the Space ProbesAugust 26, 2010 8.0A look at space probes, what they have done and found for us in space, and what they might do in the future, such as searching for Earth-lik
6. S05E06Asteroid AttackSeptember 2, 2010 8.0A look at asteroids and the impact they have or had on life now and before. Also, what spacecrafts can tell us about them, what they can do
7. S05E07Total EclipseSeptember 16, 2010 8.0A look at the movements of the Earth, the sun and the moon during solar and lunar eclipses; how humans, if alone in the universe, may be the
8. S05E08Dark Future of the SunSeptember 23, 2010 8.5A look at the grim future of our home star, the sun, and what might happen to it five billion years in the future. Also the results of the g

Season 5 ranked & reviewed

1. S06E01Catastrophes That Changed the PlanetsOctober 25, 2011 8.0The planets of our solar system have experienced epic catastrophes throughout their long history, both raining down from outside and bubblin
2. S06E02Nemesis: The Sun's Evil TwinNovember 1, 2011 8.0Could there be a monstrous, undiscovered star orbiting our own Sun? Could it be scattering killer comets throughout our Solar System like cl
3. S06E03How the Solar System Was MadeNovember 8, 2011 7.0At 4.6 billion years old, the Solar System is our solid, secure home in the Universe. But how did it come to be? In this episode we trace th
4. S06E04Season's bestCrash Landing on MarsNovember 22, 2011 8.5What might happen if the first manned mission to Mars crashes hundreds of miles from the rocket that would take them back home? Could they s
5. S06E05Worst Days on Planet EarthNovember 29, 2011 8.0Earth may seem like the most hospitable planet in the solar system. But look again. Startling new discoveries reveal the blue planet has bee
6. S06E06UFO: The Real DealDecember 13, 2011 8.3Many argue that flying saucers and other extra-terrestrial space ships continuously visit the earth. If that were true, what kinds of techno
7. S06E07God and the UniverseDecember 20, 2011 7.0Since the dawn of civilization, humans have wondered who or what created the universe. Religion offers a spiritual answer, but do the latest

Season 6 ranked & reviewed

1. S07E01How Big, How Far, How FastApril 29, 2012 7.0The biggest objects, farthest distances, and fastest speeds are made relatable through extreme physical analogies.
2. S07E02Alien SoundsMay 6, 2012 7.0What does the Universe sound like? From the sweep of a pulsar, to the deafening roar of our boiling sun this episode explores the undiscover
3. S07E03Season's bestOur Place in the Milky WayMay 13, 2012 8.0An exploration of Earth's cosmic neighborhood. Looking beyond the borders of our solar system, what's nearby in our galaxy? How do the other
4. S07E04Deep FreezeMay 20, 2012 8.0This episode discusses the coldest places in the universe from labs on earth to super cold places in our solar system, galaxy and beyond.
5. S07E05Microscopic UniverseJune 3, 2012 8.0The key to understanding the universe seems to be understanding its smallest components. But reconciling the two has proved to be a tremendo
6. S07E06Ride the CometJune 10, 2012 7.5Board a virtual space ship to travel along with a variety of comets; long and short period, sun grazers, comets masquerading as asteroids an
7. S07E07When Space Changed HistoryJune 17, 2012 8.0It may seem like seem like science fiction, but the cosmos isn't just something way out there. Many times in human history, objects or force

Season 7 ranked & reviewed

1. S08E01StonehengeMarch 1, 2014 8.3Examining the possibility that Stonehenge was a prehistoric astronomical observatory, used to record the movements of the Sun and Moon.
2. S08E02Season's bestPyramidsMarch 8, 2014 8.7Examining the astronomical connections of the Pyramids of Giza.
3. S08E03Heavenly DestructionMarch 15, 2014 8.0Examining possible astronomical explanations for the Biblical account of the destruction of Sodom and Gomorrah, including the possibility of
4. S08E04Star of BethlehemMarch 22, 2014 7.0Examining possible astronomical explanations for the Star of Bethlehem in the Bible, which guided the Magi to the location of the birth of J

Season 8 ranked & reviewed

1. S09E01Omens of DoomApril 18, 2015—Examining the interpretations by ancient peoples of celestial phenomena as bad omens, and the impact that the perceived omens may have had o
2. S09E02The Eye of GodApril 25, 2015 8.5Examining strange shapes of the universe, such as the "Eye of God", the hexagon on Saturn, and the "face" on the Moon.
3. S09E03Apocalyptic VisionsMay 2, 2015 8.0Hell fires, endless winters, or a planet wracked by earthquakes are a few versions of Armageddon visualized by the Vikings, Aztecs, and the
4. S09E04Alien WorldsMay 9, 2015—Examining the possibility of other worlds existing in the universe.
5. S09E05Predicting the FutureMay 16, 2015—Examining whether tracking astronomical phenomena can actually predict the future.
6. S09E06Roman EngineeringMay 23, 2015—Examining Roman engineering and its impact on life in the ancient empire.

Season 9 ranked & reviewed