Where to stream every episode from all 9 seasons of The Universe. Filter these episodes by what's available to watch free or on your streaming services using the tabs above.
Season 1History | History | Rent or Buy
S01 E01May 30, 2007
Secrets of the Sun May 30, 2007 Behold 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 work in general and MUCH MUCH more.
S01 E02Jun 6, 2007
Mars: The Red Planet Jun 6, 2007 Visit 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 there.
S01 E02Jun 5, 2007
Mars: The Red Planet Jun 5, 2007 Visit 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 there.
S01 E03Jun 13, 2007
The End of the Earth: Deep Space Threats to our Planet Jun 13, 2007 Asteroids, comets, gamma ray bursts and the sun all combine to make the Earth a dangerous place to live.NASA's top brass and other scientists are arming themselves with the latest technology to pre-empt an apocalyptic attack. Watch and investigate bizarre, and terrifying apocalyptic scenarios and the ways that scientists are racing against the clock to develop technology to defend our planet.
S01 E04Jun 20, 2007
Jupiter: The Giant Planet Jun 20, 2007 Jupiter poses many questions about our solar system. It is a powerful planet of gas whose flowing colors and spots are beautiful, but contain violent storms and jet streams. A mini solar system of over sixty moons rotate around Jupiter--a half billion miles from earth. Could one of these moons contain life under its icy crust?
S01 E05Jun 27, 2007
The Moon Jun 27, 2007 The 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 ever visited.NASA is planning to build a permanent outpost there. Discover how the moon came to be--if you don't already know, you will be astounded.
S01 E06Jul 11, 2007
Spaceship Earth Jul 11, 2007 Take a high performance ride through the formation of the third planet from the Sun, Earth...A survivor of one of the most violent "neighborhoods" in the Universe, learn how Earth was created and discover what creatures hold clues to how life began. What evil forces threaten the demise of Earth? Complex and controversial, this is the scientific detective story of all time.
Season 2History | Rent or Buy
S02 E01Nov 28, 2007
Alien Planets Nov 28, 2007 Have planet hunters finally found proof of other Earthlike worlds? Astronomers have now discovered over two hundred alien worlds, beyond our solar system, that were unknown just a decade ago
S02 E02Dec 5, 2007
Cosmic Holes Dec 5, 2007 We know black holes exist, and now scientists are trying to confirm that other holes lurk in hyperspace.
S02 E03Dec 12, 2007
Mysteries of the Moon Dec 12, 2007 A closer look at the beacon in the dark sky reveals an ever-present source of myth, intrigue, controversy and unsolved mysteries
S02 E04Dec 19, 2007
The Milky Way Dec 19, 2007 We 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 wonders exist between where earth is situated and the massive black hole at the galactic center of our solar system. Within the Milky Way can be found the debris of old, dying stars fueling the birth of new stars and at the galactic center hypervelocity stars get catapulted clear beyond the Milky Way's outer rim at unimaginable speeds. Come along for a guided tour of 100,000 light-year-wide family of stars and stellar phenomena we call The Milky Way.
S02 E05Jan 9, 2008
Alien Moons Jan 9, 2008 Travel from the inner solar system to the Kuiper Belt and explore the moons surrounding the planets of the solar system. Many of these moons that were once unknown are now on the cutting edge of astronomical study.
S02 E06Jan 16, 2008
Dark Matter Jan 16, 2008 Scientists have no idea what it is, but Dark Matter and Dark Energy make up 96% of the Universe. Dark Matter is everywhere. It passes through everything we know on earth at billions of particles every second, yet no one has ever gotten a direct detection of this mysterious dark substance. An even more bewildering force is Dark Energy, which is rapidly pushing apart our Universe. Discovered only ten years ago, scientists are struggling to comprehend its unusual characteristics and answer the ultimate question; what is the fate of our Universe?
S02 E07Jan 30, 2008
Astrobiology Jan 30, 2008 Does life exist on other planets? Astrobiology is a visionary new science that searches for life in space by combining the disciplines of astronomy, biology and geology. How did life evolve on Earth? What will life look like on other planets? These and other pertinent questions will be answered by a diverse group of scientists.
Season 3History | Rent or Buy
S03 E01Nov 12, 2008
Deep Space Disasters Nov 12, 2008 In 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 spacecraft or a micrometeoroid less than an inch wide hitting a space station can turn a routine mission into a lethal nightmare. As the missions become longer, venturing to Mars and beyond, the potential disasters will only become bigger. What would happen if a spacecraft ventured too close to a black hole or was hit by a gamma ray burst?
S03 E02Nov 19, 2008
Parallel Universes Nov 19, 2008 Some of the world's leading physicists believe they have found startling new evidence showing the existence of universes other than our own. One possibility is that the universe is so vast that an exact replica of our Solar System, our planet and ourselves exists many times over. These Doppelganger Universes exist within our own Universe; in what scientist now call "The Multiverse."
S03 E03Nov 26, 2008
Light Speed Nov 26, 2008 According 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 instantly here on Earth, and shows us the entire history of the universe going back nearly 14 billion years. Learn all about light speed, the ultimate constant in the universe and discover ways scientists envision breaking the "light barrier" which may be the only way the star travel of our imaginations ever comes to reality.
S03 E04Dec 3, 2008
Sex in Space Dec 3, 2008 As man moves to colonize the cosmos, the realities of sexual relationships and reproduction need to be addressed. Probe the physiological, psychological and cultural challenges of sex in space. From the sex act through birth, look at how the extreme environments of space exploration might effect copulation, conception and developing human tissues, as well as how issues around sex might impact the emotional lives of astronauts. Get to the bottom of the rumors to find out if space sex has already happened, and look at how the burgeoning space tourism business may soon lead to a boom in space sex.
S03 E05Dec 10, 2008
Alien Faces Dec 10, 2008 They soar through the heavens, fly through the oceans and glide along land. But these are not creatures found on a wildlife safari. These are life forms from another planet. Armed with scientific fact and a little imagination, experts come together to take you on an unprecedented journey to the edges of our imagination. Scientists, astrobiologists and astronomers create five lines of extraterrestrial evolution, and explain how creatures on the surface of Earth offer a helping hand to understanding life in The Universe.
S03 E06Dec 17, 2008
Deadly Comets and Meteors Dec 17, 2008 Asteroids and comets have left their imprint on planet Earth, literally. Since the turbulent formation of the solar system, these space rocks have continued to impact earth. Some have been so violent that they've led to mass extinctions. What's more, radical new theories suggest that asteroid and comet dust harbor deadly viruses that may have triggered some of our worst pandemics. The possibility of future cosmic collisions remains a legitimate threat. Yet, despite their dangers, asteroids and comets may hold vital natural resources, which could actually preserve mankind.
S03 E07Dec 24, 2008
Living in Space Dec 24, 2008 When mankind eventually leaves the cradle of Earth and ventures forth into the uncharted territories of the cosmos, where, and what form, will our new homes take? Will they be cities under glass, entrenched in distant alien soils? Will they be gleaming metropolises hanging in orbit above our heads, or in the lonely void of space? Will they be hollowed out asteroids, strip-mined for the valuables they horde? How will we grow food? What will the new era of spacesuits be like? The rovers that carry us around? Will robonauts, advanced robotic machines, perform the most dangerous tasks for us? How will we live... in space?
Season 4History | Rent or Buy
S04 E01Aug 19, 2009
Death Stars Aug 19, 2009 Season 4 opens with an exploration of dying stars, the process where stars become supernovas, and, occasionally, become the biggest blast in the universe as a gamma ray burst (GRB). One death star, named WR104, lurks 8,000 light-years from Earth and some believe its GRB arrow is aimed directly at us. A death star galaxy named 3C321 is a frightening vision of what could one day befall the Milky Way galaxy: a companion galaxy's black hole being hammered with a constant blast of high-energy particles, wreaking havoc with its celestial bodies. Nearby, Death Stars Eta Carinae and Betelgeuse burn through their fuel supplies as they hurtle toward extinction...which just may be too close for comfort.
S04 E02Aug 26, 2009
The Day the Moon Was Gone Aug 26, 2009 Without the moon, Earth would be a very different and desolate place today--four hours of sunlight with pitch-black nights, steady 100-mph winds spawning giant hurricanes that last for months, and virtually no complex life forms, much less humans. Safe to say, we probably owe our very existence to the moon. But what if it suddenly disappeared?
S04 E03Sep 2, 2009
It Fell From Space Sep 2, 2009 Every year, thousands of objects both natural and manmade plummet through our atmosphere and crash into the Earth. These menacing messengers from the sky provide scientists with amazing insights into the natural, and not so natural, phenomena of the cosmos. From space rocks crashing through homes to cosmic boulders triggering mass extinctions to rocket parts landing on front lawns, explore objects that fall from the heavens, such as asteroids, comets, meteor showers and space debris.
S04 E04Sep 9, 2009
Biggest Blasts Sep 9, 2009 An examination of the most powerful explosions and blasts in the universe. Includes a look at the Mexico's Yucatán peninsula and the impact which caused the Chicxulub crater. Also a look at gamma rays and Big Bang Theory.
S04 E05Sep 16, 2009
The Hunt for Ringed Planets Sep 16, 2009 They are breathtaking, lethal and a constant source of surprise. The stunning rings of Saturn have mesmerized countless scientists over the centuries. With particles the size of a house shooting at 53,000 miles per hour around the planet, any spacecraft passing through would meet an instant and catastrophic end. Inside the rings is like a NASCAR race - with bumping, jostling and frequent collisions that can cause a massive spin-out. Lesser known are the other planets that have rings - Uranus, Jupiter, Neptune, possibly Pluto and Mars. Even Earth has a ring. Comprised of some 200 satellites in a geosynchronous orbit, it is the only known man-made ring in the universe. But the most remarkable thing about rings is that they contain the story of the birth of our solar system, and entire distant galaxies. Rings are more than a wonder of the universe - they reveal the secrets of our own origins.
S04 E06Sep 23, 2009
10 Ways to Destroy the Earth Sep 23, 2009 Experts cook up ways you could destroy the Earth, including swallowing it with a black hole, blowing it up with anti-matter, hurling it into the Sun, and switching off gravity.
S04 E07Sep 30, 2009
The Search for Cosmic Clusters Sep 30, 2009 They are the one-stop-shopping places for learning all about the nature and variety of stars in the Universe. They're unique, because in clusters, all the stars were born at about the same time, from the same material and all are at the same approximate distance from Earth. This means we can be sure that any differences among them are due to their true natures and not distorted by different distances from Earth and other factors.
Season 5History | Rent or Buy
S05 E01Jul 30, 2010
7 Wonders of the Solar System Jul 30, 2010 A close up look at some of the most astonishing wonders of our solar system, such as the geysers of Enceladus; Saturn's amazing rings; Jupiter's Great Red Spot; and the heights of Olympus Mons on Mars.
S05 E02Aug 6, 2010
Mars: The New Evidence Aug 6, 2010 A 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 that once flowed on the surface; to the water ice frozen at the poles; to the seasonal changes in methane gases that may prove bacterial life still thrives underground.
S05 E03Aug 13, 2010
Magnetic Storm Aug 13, 2010 A look at magnetic storms – "Solar Katrinas" created by the sun with the power of ten-thousand nuclear weapons that could cause global electrical blackouts, electronics malfunctions and communication disasters if one should hit the Earth.
S05 E04Aug 20, 2010
Time Travel Aug 20, 2010 A look at time travel; how it could one day become reality; how Einstein's theory of relativity claims it is possible, and the probable results of traveling to the future and the mind-boggling consequences of traveling to the past.
S05 E05Aug 27, 2010
Secrets of the Space Probes Aug 27, 2010 A 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-like planets and for extraterrestrial life.
S05 E06Sep 3, 2010
Asteroid Attack Sep 3, 2010 A 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 to civilization, and the possibility of living on one.
S05 E07Sep 17, 2010
Total Eclipse Sep 17, 2010 A 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 only intelligent creatures to witness these events; and how astronomers discover planets in other star systems that partially eclipse their stars.
Season 6History | Rent or Buy
S06 E01Oct 26, 2011
Catastrophes that Changed the Planets Oct 26, 2011 The planets of our solar system have experienced epic catastrophes throughout their long history, both raining down from outside and bubbling up from within. We'll voyage back in time to investigate the violent events that profoundly shaped the planets, including earth itself. We'll witness stunning revelations about what transformed Mars into a barren, hostile desert...The disaster that changed Venus from temperate to hellish...The impact that blew away Mercury's mantle, turning it into a planetary core...A colossal disturbance that rearranged the orbits of the gas giants...Titanic impacts on Jupiter...And how a lost moon may finally explain Saturn's rings.
S06 E02Nov 2, 2011
Nemesis: The Sun's Evil Twin Nov 2, 2011 Could there be a monstrous, undiscovered star orbiting our own Sun? Could it be scattering killer comets throughout our Solar System like clockwork every 26 million years? New scientific surveys are probing the edges of our Solar System--a realm populated by giant worlds and mysterious planetoid--hunting for Nemesis, the Sun's purported evil twin. We may be on the verge of discovering this ultimate death star, suspected of causing every mass extinction in Earth's history. We employ everyday experiences to explain what Nemesis is and why it's been so hard to find. Experts start a wildfire on a dry California hillside, race a NASCAR around an oval track, and juggle fire, all in the effort to present how Nemesis works, and why life on Earth may depend on its discovery.
S06 E03Nov 9, 2011
How the Solar System was Made Nov 9, 2011 At 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 the system's birth from a thin cloud of dust and gas. Shocked by a nearby supernova, the pull of gravity and natural rotation spun it into a flat disc from which the Sun and planets coalesced. It all happened in the space of 700 million years, during which the planets jockeyed for position, dodging the brutal bombardment of deadly asteroids and setting into the neat, stable system that we now realize might be a rarity in the universe.
S06 E04Nov 23, 2011
Crash Landing on Mars Nov 23, 2011 What might happen if the first manned mission to Mars crashes hundreds of miles from the rocket that would take them back home? Could they survive the crash, and travel across the brutal Martian surface to their home ship? We'll show what the astronauts would have to do to survive dust storms and space radiation, while extracting vital resources like water from the Martian soil itself. It's a dramatic vision of the very near future, where survival can depend on pre-industrial technology and human ingenuity.
S06 E05Nov 30, 2011
Worst Days on Planet Earth Nov 30, 2011 Earth may seem like the most hospitable planet in the solar system. But look again. Startling new discoveries reveal the blue planet has been plagued by more chaos and destruction than scientists once imagined. Stand on the Earth billions of years ago as a primitive planet slams into it. Shiver as our entire globe is frozen over like a gigantic snowball. Feel the heat as mammoth volcanoes scorch the landscape and darken the sky. From a cosmic gamma ray burst frying away the ozone layer to an Everest-size asteroid slamming into the ocean, we'll reveal new information about how these unparalleled events drove life to the brink of total extinction. Out of this continuous devastation, how has our planet--and life--got to where it is today? Are the worst days behind us--or lurking in the distant future?
S06 E06Dec 14, 2011
UFO: The Real Deal Dec 14, 2011 Many argue that flying saucers and other extra-terrestrial space ships continuously visit the earth. If that were true, what kinds of technologies would such alien spacecraft require? And do eyewitness reports of UFO sightings jibe with modern theories of how interstellar travel might be possible? Authors, astronomers and theoretical physicists weigh in with the blueprints for inertia-canceling devices, nuclear-powered craft, antimatter propulsion systems and even warp drives. Based on Einstein's theories and countless scientific studies, we'll find out how these visitors might bridge the vast distances between the stars. And if they could survive such hazardous journeys, are they flesh and blood or intelligent machines?
S06 E07Dec 21, 2011
God and the Universe Dec 21, 2011 Since the dawn of civilization, humans have wondered who or what created the universe. Religion offers a spiritual answer, but do the latest discoveries in physics show evidence of a transcendent intelligence, or simply that the laws of physics by themselves could have led to the universe in which we live? This episode embarks on a mind-bending scientific search for God, asking physicists and theologians if the seemingly miraculous way the universe has been calibrated to support life is evidence of a creator...whether string theory will eventually be able to rule out the existence of God...why Stephen Hawking says the universe could have been created spontaneously...and how an advanced civilization in another universe could have conceivably created our own.
Season 7History | Rent or Buy
S07 E01Apr 30, 2012
How Big, How Far, How Fast Apr 30, 2012 The biggest objects, farthest distances, and fastest speeds are made relatable through extreme physical analogies.
S07 E02May 7, 2012
Alien Sounds May 7, 2012 What does the Universe sound like? From the sweep of a pulsar, to the deafening roar of our boiling sun this episode explores the undiscovered soundscapes of the solar system, the galaxy, and the entire cosmos. And, is it true that in space nobody can hear you scream?!? Our scientists reveal that there are places in the Universe that prove this sci-fi statement wrong.
S07 E03May 14, 2012
Our Place in the Milky Way May 14, 2012 An exploration of Earth's cosmic neighborhood. Looking beyond the borders of our solar system, what's nearby in our galaxy? How do the other objects in our local area influence life on Earth? And, how did Earth's place in the galaxy make it the perfect place for the development of advanced life?
S07 E04May 21, 2012
Deep Freeze May 21, 2012 This episode discusses the coldest places in the universe from labs on earth to super cold places in our solar system, galaxy and beyond.
S07 E05Jun 4, 2012
Microscopic Universe Jun 4, 2012 An examination is conducted into the world of miniature particles, as microscopic objects like neutrinos MACHOs, WIMPs and many others may ultimately lead to understanding more about the mysteries surrounding the cosmos.
S07 E06Jun 11, 2012
Ride the Comet Jun 11, 2012 A comet travels to the sun from the outer reaches of the solar system.
S07 E07Jun 18, 2012
When Space Changed History Jun 18, 2012 Objects from space have changed history throughout the ages.
Season 8History | History | Rent or Buy
S08 E01Mar 2, 2014
Stonehenge Mar 2, 2014 Perhaps the most mysterious structure on Earth, Stonehenge has stood on a plain in Southern England for 5000 years. Why is it there? In this episode we explore the possibility that this was a prehistoric astronomical observatory. Here ancient astronomer priests may have divined the complex movements of the Sun and Moon, recognizing patterns that would not be discovered elsewhere for thousands of years. The primitive Shamans may have also been the first astronomers to predict eclipses.
S08 E02Mar 9, 2014
Pyramids Mar 9, 2014 The Great Pyramids of Giza remain one of the enduring wonders of the ancient world. These mesmerizing monuments have eluded astronomers and archeologists for centuries. Why and how were they built? Were they merely burial tombs, or a cosmic vehicle to the celestial world? The world's renowned Egyptologists, astronomers and engineers join forces to solve some of the long-held mysteries about the pyramids. What were the motives and methods behind the orientation of the pyramids to face the four cardinal directions with extreme accuracy? Did the ancient Egyptians use the sun or nighttime stars in the orientation of the pyramids? Were the pyramids the pharaohs' portal to the nighttime stars? Or was the entire Giza complex built as a place of cult worship to the sun?
S08 E03Mar 16, 2014
Heavenly Destruction Mar 16, 2014 Sodom and Gomorrah–a terrifying Biblical tale of two cities incinerated by a hail of fire and brimstone. Was this a fantastic fable, or an actual apocalyptic disaster? Astronomers, archeologists and biblical scholars investigate the possible science behind the myth. Two separate archeological sites along the Dead Sea claim to hold the remains of the actual sin cities. Newly discovered ancient artifacts may even hold the secrets to their destruction? Could an asteroid be responsible for the destruction of Sodom and Gomorrah?
S08 E04Mar 23, 2014
Star of Bethlehem Mar 23, 2014 What was the astronomical reality behind the star that, according to the Gospel of Matthew, guided the Magi to the young Jesus? This episode examines almost 20 centuries of theories, including meteors, novae, supernovae and comets…but is the truth to be found in a combination of astronomy–and astrology? Recent theories suggest that the "star" was the planet Jupiter in a series of conjunctions with other planets, stars and constellations, and that these conjunctions were interpreted by the Magi–astrologers and priests of the Zoroastrian religion–as heralding the birth of the Jewish Messiah.
Season 9Rent or Buy
S09 E01Apr 19, 2015
Omens of Doom Apr 19, 2015 To our ancestors, the appearance of certain astronomical events meant something big and something bad was coming. They were portends of death, plague, famine, or war. But what were they really seeing? And how did fear of these objects in the sky actually change the course of history?
S09 E02Apr 26, 2015
The Eye of God Apr 26, 2015 Could the strange shapes of the universe solve the mysteries that have haunted mankind since ancient times? Is the eye of God peering at us from the heavens? What is the strange hexagon at the pole of Saturn, or the face on the Moon? Each shape tells its own story of an object's origin, and how physical forces shaped the Universe, and each is a chapter in the greater saga of existence.
S09 E03May 3, 2015
Apocalyptic Visions May 3, 2015 Hell fires, endless winters, or a planet wracked by earthquakes are a few versions of Armageddon visualized by the Vikings, Aztecs, and the rest of our ancient ancestors. But which does modern science think will be closest to the truth? Celestial phenomena--the aging of our sun, the expansion of our universe, and other potentially cataclysmic events--could trigger the kind of Armageddon the ancients feared. Which ancient prophecy do scientists believe actually foretells our doom? And how close are we to the end of the world?
S09 E04May 10, 2015
Alien Worlds May 10, 2015 The ancients believed that the universe consisted of countless worlds we could not see, and argued endlessly over the nature of these distant, invisible planets and whether they might be inhabited. Until recently many scientists thought we would never discover the truth, believing that extra-solar planets were simply too far, too small and too dim to detect. But new technologies have suddenly revealed thousands of distant planets, opening up the most exciting period in astronomy in decades. Some believe we're on the verge of answering the ancient question: are we alone in the universe?
S09 E05May 17, 2015
Predicting the Future May 17, 2015 Many believe that the celestial movement of the Sun, planets and moon gives us the blueprint for life, and governs our future. From Roman emperors, to kings and queens, to modern politicians, knowledgeable and powerful people have consulted an ancient system of predicting terrestrial events from celestial observations. But is there proof that this system of tracking astronomical phenomena can actually predict our future?
S09 E06May 24, 2015
Roman Engineering May 24, 2015 Do Rome's ancient monuments have secret connections to the Sun? New archaeological evidence, confirmed by NASA data and recreated in state-of-the-art virtual reality, suggests that early Roman emperors mastered architecture and astronomy to make the Sun create strange special effects for reasons both political and personal. One set up an obelisk and altar that blocked the Sun on the anniversary of Julius Caesar's murder, another built a domed room that bathed him in sunlight on certain days, and the Emperor Hadrian designed the Pantheon to mark cosmic events like equinoxes, and turned the central "oculus" of the temple dome into his own personal spotlight, but for what nefarious purposes? We uncover the last great mysteries of the ancient world's greatest empire. The answers are hidden in ancient ruins...and among the stars.