PBS Space Time (2015) Web Series — Cast, Story & Where to Watch | MovieLinkBD

PBS Space Time (2015) is a documentary, talk web series in English. On MovieLinkBD: full story, cast, ratings, season & episode guide, official trailer and where to watch PBS Space Time online in HD.

PBS Space Time — Storyline

Space Time explores the outer reaches of space, the craziness of astrophysics, the possibilities of sci-fi, and anything else you can think of beyond Planet Earth.

Cast & Crew

• Starring: Matthew O’Dowd

PBS Space Time — Series Details

PBS Space Time — Episode Guide

Season 1

• E1: What Planet is Super Mario World? (2015-02-11) — We've run, jumped, and stomped all over the world of Super Mario, but, where in the universe is Super Mario EXACTLY? It's virtual so it obviously DOESN'T exist, but if it did, coul

Season 2015

• E1: What Planet is Super Mario World? (2015-02-11) — We've run, jumped, and stomped all over the world of Super Mario, but, where in the universe is Super Mario EXACTLY? It's virtual so it obviously DOESN'T exist, but if it did, coul
• E2: Is It Irrational to Believe in Aliens? (2015-02-18) — Aliens! Could humans really be alone in this expansive universe? And if we're not, how come we've never made contact with other intelligent life? Everyone's thought about it; espec
• E3: How Do You Measure the Size of the Universe? (2015-02-25) — The universe is HUGE. But, there is only so much of the universe we can ACTUALLY see, and if we wanted to measure that FINITE space, how would we do it? A gigantic ruler? One reall
• E4: Should We Colonize Venus Instead of Mars? (2015-03-04) — Mars One. The Mars Rover. Bruno Mars. Mars Bars. It's pretty clear we're OBSESSED with the idea of Mars, especially in regard to it being a potential colony for earthlings. But is
• E5: What Will Destroy Planet Earth? (2015-03-11) — Killing all the life on Earth is easy. But what about destroying the planet itself? That is DEFINITELY going to happen!! But HOW? Could it be Nukes? A Giant Asteroid? A Collision
• E6: Can A Starfox Barrel Roll Work In Space? (2015-03-18) — DO A BARREL ROLL! Or at least, try…? The iconic move from Star Fox seems so easy, just press a button and BOOM. The ship rolls. But HOW? Barrel rolls in atmosphere are easy to exec
• E7: Cosmic Microwave Background Explained (2015-03-25) — HAS SPACE ALWAYS BEEN BLACK? As long as we've been around, YES. But the universe gets much more exciting, AND much BRIGHTER, as we start winding our clocks back to the early days o
• E8: Is the Moon in Majora’s Mask a Black Hole? (2015-04-01) — Is Link in Majora's Mask actually being overseen by a Black Hole (with teeth)? It's easy to take things at face value in video games. But when we take a deeper dive into the physic
• E9: Could You Fart Your Way to the Moon? (2015-04-08) — Listen, we know you've thought about it, and we're here to give you THE DEFINITIVE ANSWER to one of the greatest science questions of all time. How long would it take to get to the
• E10: How to Weigh a Fart (2015-04-09) — EVER WANTED TO WEIGH A FART? Well, it isn't easy, but walk through the math, physics, and science behind farts and how to measure them!
• E11: Could NASA Start the Zombie Apocalypse? (2015-04-15)
• E12: Are Space and Time An Illusion? (2015-04-22)
• E13: What's the Most Realistic Artificial Gravity in Sci-Fi? (2015-04-29)
• E14: Should the First Mars Mission Be All Women? (2015-05-06)
• E15: 9 NASA Technologies Shaping YOUR Future (2015-05-13)
• E16: The Real Meaning of E=mc² (2015-05-20)
• E17: Habitable Exoplanets Debunked! (2015-05-27)
• E18: Is Gravity An Illusion? (2015-06-03)
• E19: Challenge: What Happens to a Helium Balloon in Freefall? (2015-06-10)
• E20: How to Signal Aliens (2015-06-17)
• E21: The Calendar, Australia & White Christmas (2015-06-24)
• E22: Can a Circle Be a Straight Line? (2015-07-02)
• E23: Curvature Demonstrated + Comments (2015-07-08)
• E24: The Leap Second Explained (2015-07-08)
• E25: Can You Trust Your Eyes in Spacetime? (2015-07-15) — Last time we talked about what curvature means, looked at geodesics, great circles on spheres, and tried to understand the notion of "straightness". This week on Spacetime, we take
• E26: SPECIAL ANNOUNCEMENT + Flat Spacetime Geometry Comments (2015-07-22)
• E27: General Relativity & Curved Spacetime Explained! (2015-07-29)
• E28: What Physics Teachers Get Wrong About Tides! (2015-08-05) — We all know tides have something to do with gravity from the Moon and Sun, but if gravity affects the motion of all objects equally, then how come oceans have large tides while oth
• E29: Challenge: Which Particle Wins This Race? (2015-08-12)
• E30: Do Events Inside Black Holes Happen? (2015-08-19)
• E31: Watch THIS! (New Host + Challenge Winners) (2015-08-27)
• E32: Does Dark Matter BREAK Physics? (2015-09-23)
• E33: What Happens At The Edge Of The Universe? (2015-09-30) — Lots of people believe the Universe is infinite, but there's a good possibility that might not be the case. Which means that there would be an actual edge of the Universe. What hap
• E34: The Speed of Light is NOT About Light (2015-10-07)
• E35: 5 REAL Possibilities for Interstellar Travel (2015-10-15)
• E36: Have Gravitational Waves Been Discovered?!? (2015-10-22)
• E37: Is The Alcubierre Warp Drive Possible? (2015-10-28)
• E38: Why Haven't We Found Alien Life? (2015-11-05)
• E39: Challenge: Can you save Earth from a Killer Asteroid? (2015-11-11)
• E40: 5 Ways to Stop a Killer Asteroid (2015-11-18)
• E41: 100 Years of Relativity + Challenge Winners! (2015-11-25)
• E42: How to Build a Black Hole (2015-12-09)
• E43: The Higgs Mechanism Explained (2015-12-16)

Season 2016

• E1: The True Nature of Matter and Mass (2016-01-06) — We know that mass is energy… but what is energy? And where did matter and time even come from? Matt begins to dive into these intricate topics by first examining what inertial mass
• E2: When Time Breaks Down (2016-01-13)
• E3: The Photon Clock Challenge (2016-01-20)
• E4: The Origin of Matter and Time (2016-01-27)
• E5: Will Mars or Venus Kill You First? (2016-02-03)
• E6: LIGO's First Detection of Gravitational Waves! (2016-02-11)
• E7: Planet X Discovered?? + Challenge Winners! (2016-02-17)
• E8: Why the Big Bang Definitely Happened (2016-02-24)
• E9: What's Wrong With the Big Bang Theory? (2016-03-02)
• E10: Cosmic Microwave Background Challenge (2016-03-09)
• E11: Why is the Earth Round and the Milky Way Flat? (2016-03-16)
• E12: How Cosmic Inflation Flattened the Universe (2016-03-23)
• E13: Pulsar Starquakes Make Fast Radio Bursts? + Challenge Winners! (2016-03-30)
• E14: We Are Star Stuff (2016-04-06)
• E15: Will the Universe Expand Forever? (2016-04-13)
• E16: Why the Universe Needs Dark Energy (2016-04-20)
• E17: What Does Dark Energy Really Do? (2016-04-27)
• E18: Will Starshot's Insterstellar Journey Succeed? (2016-05-04)
• E19: The Cosmic Conspiracy of Dark Energy Challenge Question (2016-05-11)
• E20: Anti-gravity and the True Nature of Dark Energy (2016-05-18)
• E21: Is an Ice Age Coming? (2016-05-25)
• E22: Is Quantum Tunneling Faster than Light? (2016-06-01)
• E23: New Fundamental Particle Discovered?? + Challenge Winners! (2016-06-08)
• E24: The Strange Universe of Gravitational Lensing (2016-06-15)
• E25: Planck's Constant and The Origin of Quantum Mechanics (2016-06-22)
• E26: Nuclear Physics Challenge (2016-06-29)
• E27: Juno to Reveal Jupiter's Violent Past (2016-07-06)
• E28: The Future of Gravitational Waves (2016-07-20)
• E29: The Quantum Experiment that Broke Reality (2016-07-27)
• E30: Can We Survive the Destruction of the Earth? ft. Neal Stephenson (2016-08-03)
• E31: How the Quantum Eraser Rewrites the Past (2016-08-10)
• E32: Quantum Eraser Lottery Challenge (2016-08-17)
• E33: Should We Build a Dyson Sphere? (2016-08-24) — The Kepler telescope recently noticed a strange partial eclipse that some have speculated could be a Dyson Sphere. Are Dyson Sphere's possible? Are they practical? What other alter
• E34: Is There a Fifth Fundamental Force? + Quantum Eraser Answer (2016-09-07)
• E35: Self-Replicating Robots and Galactic Domination (2016-09-14) — We’ll soon be capable of building self-replicating robots. This will not only change humanity’s future but reshape the galaxy as we know it.
• E36: Quantum Entanglement and the Great Bohr-Einstein Debate (2016-09-21) — Albert Einstein strongly disagreed with Niels Bohr when it came to Bohr’s interpretation of quantum mechanics. Quantum entanglement settled the argument once and for all.
• E37: Life on Europa? (2016-09-29) — The Hubble Telescope found more evidence of vast plumes of water bursting through the icy surface of Jupiter’s moon Europa. What does this tell us about the potential for life on E
• E38: Are We Alone? Galactic Civilization Challenge (2016-10-05) — The Drake Equation tells us the likelihood that there are other advanced technological civilizations waiting for us among the stars. In this episode of Space Time we challenge you
• E39: Black Holes from the Dawn of Time (2016-10-12) — Primordial black holes may be lurking throughout our universe. How large are they, how many are out there and what would happen if they moved through our solar system?
• E40: The First Humans on Mars (2016-10-19) — Elon Musk’s SpaceX program proposes that 100 people could be sent to colonize Mars within 10 years. What might that colony look like?
• E41: The Many Worlds of the Quantum Multiverse (2016-10-26) — Is our universe a definitive single reality or is it merely one within an infinitely branching multiverse?
• E42: Quantum Vortices and Superconductivity + Challenge Answers (2016-11-02)
• E43: Did Dark Energy Just Disappear? (2016-11-09)
• E44: Strange Stars (2016-11-16)
• E45: Pilot Wave Theory and Quantum Realism (2016-11-30)
• E46: What Happens at the Event Horizon? (2016-12-08)
• E47: Escape The Kugelblitz Challenge (2016-12-14)
• E48: Have They Seen Us? (2016-12-21) — Are aliens watching Earth TV? We'd like to credit the SKA Organization for the image used in the thumbnail.

Season 2017

• E1: How to See Black Holes + Kugelblitz Challenge Answer (2017-01-04) — Find out how scientists are mapping the black holes throughout the Milky Way and beyond as well as the answer to the Escape the Kugelblitz Challenge Question. Were you able to save
• E2: The EM Drive: Fact or Fantasy? (2017-01-17) — Because you demanded it … we break down the EM Drive!
• E3: The Phantom Singularity (2017-01-19) — Isaac Newton’s Universal Law of Gravitation tells us that there is a singularity to be found within a black hole, but scientists and mathematicians have found a number of issues wi
• E4: Why Quasars are so Awesome (2017-01-25) — When Quasars were first discovered the amount of light pouring out of such a tiny dot in space seemed impossible. A hysterical flurry of hypothesizing followed: swarms of neutron s
• E5: The Geometry of Causality (2017-02-02) — In this episode we dive deeper into the relationship between space and time and explore how we can geometrically map the causality of the universe and increase our understanding of
• E6: Telescopes of Tomorrow (2017-02-15)
• E7: The Eye of Sauron Reveals a Forming Solar System! (2017-02-22) — Fomalhaut is a massive young star surrounded by a ring of dust debris that can tell us a great deal about the formation of our own solar system.
• E8: The Treasures of Trappist-1 (2017-03-01) — Can humanity survive on one of the seven earth-like Trappist-1 planets?

  Last week, seven earth-like planets were discovered orbiting a Red Dwarf star 39 light years away. Each one

• E9: The Race to a Habitable Exoplanet – Time Warp Challenge (2017-03-08) — You’ve discovered a habitable exoplanet, but so has an an evil interplanetary mining corporation. Can you get to the planet before they strip it bare and leave it unsuitable for li
• E10: Time Crystals! (2017-03-15) — In this episode of the Space Time Journal Club Matt discusses how two independent research teams created their own Time Crystals, a form of matter that breaks time translational sy
• E11: Superluminal Time Travel + Time Warp Challenge Answer (2017-03-22) — Find out how traveling faster than light and traveling back in time are the same thing.
• E12: How Time Becomes Space Inside a Black Hole (2017-03-29) — Find out how time and space switch roles when we move beyond the event horizon of the black hole.
• E13: Telescopes on the Moon (2017-04-05) — Find out about China’s current telescope on the moon and what the future plans are for mounting larger telescopes on the lunar surface.
• E14: The Oh My God Particle (2017-04-19) — In 1991 a single atomic nucleus slammed into our atmosphere with the intensity of a macroscopic object. It’s been named The Oh My God Particle.
• E15: Are You a Boltzmann Brain? (2017-04-26) — Was an incredible drop in entropy responsible for the Big Bang? If that’s the case, this would lead us to conclude that a great many other things are possible, including the likeli
• E16: Are We Living in an Ancestor Simulation? (2017-05-03) — Neil deGrasse Tyson sits down with Matt to discuss Ancestor Simulations. And check out Matt and Neil discussing how sure we are about our map of the universe
• E17: The Great American Eclipse (2017-05-10) — The first total solar eclipse in over 40 years is about to hit the United States.
• E18: Martian Evolution (2017-05-17) — What will become of humanity after spend a few hundred years on Mars? What will happen after a few thousand? Evolution has, and still is, shaping humanity in rather drastic ways. H
• E19: The Fate of the First Stars (2017-05-31) — Soon after the Big Bang, the first generation of monstrously large stars ignited, lit up the universe, and then died. The resulting swarms of supernova explosions enriched the univ
• E20: Supervoids vs Colliding Universes! (2017-06-07) — If you study a map of the Cosmic Microwave Background, or CMB, you may notice a large, deep blue splotch on the lower right. This area, creatively named the Cold Spot. Is this feat
• E21: Anti-Matter and Quantum Relativity (2017-06-21) — Paul Dirac’s insights into the nature of Quantum Mechanics laid the foundation for Quantum Field Theory and predicted the existence of anti-matter.
• E22: The First Quantum Field Theory (2017-06-28) — Quantum mechanics is perhaps the most unintuitive theory ever devised. And yet it’s also the most successful, in terms of sheer predictive power. Simply by following the math of qu
• E23: Feynman's Infinite Quantum Paths (2017-07-07) — How to predict the path of a quantum particle. Part 3 in our Quantum Field Theory Series.
• E24: Solving the Impossible in Quantum Field Theory (2017-07-12) — How do you calculate infinite quantum outcomes? Feynman Diagrams.
• E25: The Real Star Wars (2017-07-19) — Anti-Satellite weaponry, giant X-ray lasers and kinetic impact missiles nicknamed the “Rods from God.” Find out about the history of the real star wars that have been waged over th
• E26: The Secrets of Feynman Diagrams (2017-07-26) — Unlock the secrets of Feynman Diagrams. Part 5 in our Quantum Field Theory series. And if you're submitting an answer to our challenge question email your answer by August 2nd to p
• E27: Dark Flow (2017-08-02) — Why does the universe seem to be moving in one particular direction?
• E28: The One-Electron Universe (2017-08-10) — Could it be that all the electrons in the universe are simply one, single electron moving back and forth through time?
• E29: Extraterrestrial Superstorms (2017-08-16) — Earth has its share of monster storms, but even our most powerful hurricanes are a breeze compared to the great, planet-sized tempests of the gas giants.
• E30: First Detection of Life (2017-08-24) — What does life look like from space?
• E31: White Holes (2017-08-30) — Black holes are very well known but… What is a White Hole?
• E32: Neutron Stars Collide in New LIGO Signal? (2017-09-13) — LIGO may have just detected gravitational waves from the collision of two Neutron Stars.
• E33: The Future of Space Telescope (2017-09-20) — The mysteries of our universe seem limitless. However to unlock them, we’re going to need some incredible technologies to peer deeper and more sharply into space time.
• E34: Are the Fundamental Constants Changing? (2017-09-28) — The laws of physics are the same everywhere in the universe. At least we astrophysicists hope so. After all, it’s hard to unravel the complexities of distant parts of the universe
• E35: When Quasars Collide STJC (2017-10-04) — So what happens when two Super Massive Black Holes collide? We may be about to find out, because astronomers have spotted a pair of them in a close binary orbit for the very first
• E36: Absolute Cold (2017-10-11) — Can we ever achieve absolute cold?
• E37: The Nature of Nothing (2017-10-19) — It turns out that "nothing" is one of the most interesting somethings in all of physics.
• E38: The Missing Mass Mystery (2017-10-25) — For years, astronomers have been unable to find up to half of the matter in the universe. We may just have solved this problem. Fingers crossed.
• E39: The Vacuum Catastrophe (2017-11-03) — If vacuum energy really does have the enormous value predicted by quantum field theory then our gently expanding, geometrically flat universe shouldn’t exist. This is the vacuum ca
• E40: Zero-Point Energy Demystified (2017-11-08) — Let’s talk about the mysterious zero-point energy and what it really can, and really can’t do.
• E41: Suicide Space Robots (2017-11-22) — Let’s take a moment to remember the selfless sacrifices made by some amazing robotic explorers. And be sure to learn more about your personal DNA story by going to 23andMe.com/spac
• E42: Citizen Science + Zero-Point Challenge Answer (2017-11-29) — The future of science is you.
• E43: Understanding the Uncertainty Principle with Quantum Fourier Series (2017-12-06) — Sometimes intuitive, large-scale phenomena can give us incredible insights into the extremely unintuitive world of quantum mechanics.
• E44: The Origin of Our First Interstellar Visitor (2017-12-13) — We were recently visited by a traveler from outside our solar system. This is the first time we’ve ever seen an object that came to us from interstellar space. It's name is 'Oumuam
• E45: Extinction by Gamma-Ray Burst (2017-12-20) — Find out about the last time and the next time the Earth will be hit by a Gamma-ray Burst.

Season 2018

• E1: What Do Stars Sound Like? (2018-01-10) — We can now map the interiors of stars by “listening” to their harmonies as they vibrate with seismic waves.
• E2: Horizon Radiation (2018-01-17) — Learn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation.
• E3: The End of the Habitable Zone (2018-01-24) — The Sun is slowly burning through its fuel. Hydrogen is fused into helium in the Sun’s core, producing energy that keeps it shining, and keeping the Earth warm and hospitable to li
• E4: Kronos: Devourer Of Worlds (2018-01-31) — What happens when a star eats its planets? Find out on today’s Space Time Journal Club.
• E5: What is Energy? (2018-02-14) — Energy is the most powerful and useful concept in all of physics, but what exactly is it?
• E6: The Death of the Sun (2018-02-21) — What exactly will happen when the sun dies?
• E7: The Trebuchet Challenge (2018-02-28) — Do you have what it takes to calculate the awesome power of the trebuchet?
• E8: Should Space be Privatized? (2018-03-07) — Will the future of space exploration be guided by public or private entities? Which is better?
• E9: Hawking Radiation (2018-03-15) — It’s the most famous prediction of perhaps the most famous genius of our time … Stephen Hawking's theory of Hawking Radiation
• E10: Scientists Have Detected the First Stars (2018-03-21) — What do the first stars in the universe, dark matter, and superior siege engines have in common?
• E11: The Andromeda-Milky Way Collision (2018-03-28) — The Andromeda galaxy is heading straight toward our own Milky Way. The two galaxies will inevitably collide. Will that be the very last night sky our solar system witnesses?
• E12: The Unruh Effect (2018-04-04) — Worried about black holes? Consider this: Every time you accelerate – you generate an event horizon behind you. The more you accelerate away from it the closer it gets. Don’t worry
• E13: Physics of Life (2018-04-11) — Our universe is prone to increasing disorder and chaos. So how did it generate the extreme complexity we see in life? Actually, the laws of physics themselves may demand it.
• E14: Using Stars to See Gravitational Waves (2018-04-18) — Now that gravitational waves are definitely a thing, it’s time to think about some of the crazy things we can figure out with them. In some cases we’re going to need a gravitationa
• E15: Black Hole Swarms (2018-04-25) — It’s been conjectured that the center of the Milky Way is swarming with tens of thousands of black holes. And now we’ve actually seen them.
• E16: The Star at the End of Time (2018-05-02) — If we, or any conscious being is around to witness the very distant future our galaxy, what will they see? How long will life persist as the stars begin to die?
• E17: How Gaia Changed Astronomy Forever (2018-05-09) — The great advances in any science tend to come in sudden leaps. April 25th of 2018 marks the beginning of just such a leap for much of astronomy. In the early hours of the morning,
• E18: Noether's Theorem and The Symmetries of Reality (2018-05-16) — Conservation laws are among the most important tools in physics. They feel as fundamental as you can get. And yet they’re wrong – or at least they’re only right sometimes. These la
• E19: Why Quantum Information is Never Destroyed (2018-05-23) — If you have perfect knowledge of every single particle in the universe, can you use the laws of physics to rewind all the way back to the Big Bang? Is the entire history of the uni
• E20: What Survives Inside A Black Hole? (2018-06-13) — We’ve established by now that black holes are weird. The result of absolute gravitational collapse of a massive body: a point of hypothetical infinite density surrounded by an even
• E21: The Black Hole Information Paradox (2018-06-20) — We’ve established by now that black holes are weird. The result of absolute gravitational collapse of a massive body: a point of hypothetical infinite density surrounded by an even
• E22: How Asteroid Mining Will Save Earth (2018-06-27) — The days of oil may be numbered, but there’s another natural resource that’s never been touched, Asteroids.
• E23: Will A New Neutrino Change The Standard Model? (2018-07-04) — Since the discovery of the Higgs boson, physicists have searched and searched for any hint of new particles. That search has been fruitless. Until, perhaps, now. Today on Space Tim
• E24: Quantum Invariance & The Origin of The Standard Model (2018-07-11) — In simple terms a gauge theory is one that has mathematical parameters, or “degrees of freedom” that can be changed without affecting the predictions of the theory.
• E25: The Misunderstood Nature of Entropy (2018-07-18) — Entropy and the second law of thermodynamics has been credited with defining the arrow of time.
• E26: Reversing Entropy with Maxwell's Demon (2018-07-25) — Can a demon defeat the 2nd Law of Thermodynamics?
• E27: How Close To The Sun Can Humanity Get? (2018-08-01)
• E28: Quantum Theory's Most Incredible Prediction (2018-08-15) — Let’s talk about the best evidence we have that the theories of quantum physics truly represent the underlying workings of reality.
• E29: How Will the Universe End? (2018-08-23) — We live in an unusual age – the age when the stars still shine. We should count ourselves lucky – nearly all of future history will be dark. But events will still unfold in that lo
• E30: Is There Life on Mars? (2018-08-30) — There is no greater hero in our search for life on mars than a little robot named Opportunity.
• E31: The Black Hole Entropy Enigma (2018-09-05) — Black Holes should have no entropy, but they in fact hold most of the entropy in the universe. Let’s figure this out.
• E32: How Much Information is in the Universe? (2018-09-12) — There’s quite a bit of stuff in the universe, to put it mildly.
• E33: Quantum Gravity and the Hardest Problem in Physics (2018-09-20) — Between them, general relativity and quantum mechanics seem to describe all of observable reality.
• E34: How to Detect Extra Dimensions (2018-10-03) — Physics seems to be telling us that it’s possible to simulate the entire universe on a computer smaller than the universe.
• E35: Computing a Universe Simulation (2018-10-10) — Physics seems to be telling us that it’s possible to simulate the entire universe on a computer smaller than the universe.
• E36: What are the Strings in String Theory? (2018-10-18) — Why strings? What are they made of? How did physicists even come up with this bizarre idea? And what’s all this nonsense of extra dimensions?
• E37: Will We Ever Find Alien Life? (2018-10-25) — The silence of the galaxy and the resulting Fermi Paradox has perplexed us for nearly 50 years. But our most recent surveys of the Milky Way finally allow us to draw scientific con
• E38: Are Virtual Particles A New Layer of Reality? (2018-10-31) — Let me tell you a story about virtual particles. It may or may not be true.
• E39: Why String Theory is Right (2018-11-07) — Some see string theory as the one great hope for a theory of everything – that it will unite quantum mechanics and gravity and so unify all of physics into one glorious theory.
• E40: Supersymmetric Particle Found? (2018-11-14) — With the large hadron collider running out of places to look for clues to a deeper theory of physics, we need a bigger particle accelerator. We have one – the galaxy.
• E41: 'Oumuamua Is Not Alien (2018-11-21) — To repeat the space time maxim: it’s never aliens … until it is. So let’s talk about ‘oumuamua.
• E42: Did Life on Earth Come from Space? (2018-12-06) — How did life on Earth get started? Did life on Earth originate on another planet? Either Mars, or in a distant solar system? Could Earth life have spread to have seeded life elsewh
• E43: Quantum Physics in a Mirror Universe (2018-12-12) — When you look in mirror, and see what you think is a perfect reflection. You might be looking at universe whose laws are fundamentally different.
• E44: Why String Theory is Wrong (2018-12-20) — There’s this idea that beauty is a powerful guide to truth in the mathematics of physical theory. String theory is certainly beautiful in the eyes of many physicists. Beautiful eno

Season 2019

• E1: Are Dark Matter And Dark Energy The Same? (2019-01-09) — Astronomers are the worst at naming things. Dark energy AND dark matter? Who can remember which is which. But perhaps one astronomer has just fixed it, with a theory that says perh
• E2: Our Antimatter, Mirrored, Time-Reversed Universe (2019-01-16) — The foundations of quantum theory rests on its symmetries. For example, it should be impossible to distinguish our universe from one that is that is the perfect mirror opposite in
• E3: The Crisis in Cosmology (2019-01-24) — The search for a single number: the hubble constant, which is the rate of expansion of our universe, has consumed astronomers for generations. Finally, two powerful and independent
• E4: Perpetual Motion From Negative Mass? (2019-01-30) — Exotic matter – matter with negative mass – has long been the pipedream of science fiction writers, futurists, and certain rather. . . optimistic researchers. It’s the key to faste
• E5: Sound Waves from the Beginning of Time (2019-02-07) — Invisible to the naked eye, our night sky is scattered with the 100s of billions of galaxies the fill the known universe. Like the stars, these galaxies form constellations – hidde
• E6: Secrets of the Cosmic Microwave Background (2019-02-20) — Hook up an old antenna to your TV and scan between channels. The static buzz you hear is mostly due to the ambient radio produced by our noisy pre-galactic civilization. But around
• E7: The Impossibility of Perpetual Motion Machines (2019-03-06) — Bad ideas come and go in physics. But there’s one bit of nonsense that is perhaps more persistent than all others: the perpetual motion machine. No working perpetual motion machine
• E8: Will You Travel to Space? (2019-03-13) — The Future of Space Tourism with Richard Branson

  The private space-race has been on for a while now. The attention has been on Space-X and Blue Origin with their reusable rockets.

• E9: Is Dark Energy Getting Stronger? (2019-03-20) — The power of Dark Energy may be increasing as the universe ages. Subtle clues are emerging that the accepted model for the nature of dark energy and dark matter may not be all that
• E10: Could the Universe End by Tearing Apart Every Atom? (2019-03-28) — Of all the unlikely ends of the universe, the Big Rip has to be the most spectacular. Galaxies ripped to shreds, dogs and cat first living together, then tragically separated by th
• E11: The Edge of an Infinite Universe (2019-04-03) — Have you ever asked “what is beyond the edge of the universe?” And have you ever been told that an infinite universe that has no edge? You were told wrong. In a sense. We can defin
• E12: The Holographic Universe Explained (2019-04-10) — We live in a universe with 3 dimensions of space and one of time. Up, down, left, right, forward, back, past, future. 3+1 dimensions. Or so our primitive Pleistocene-evolved brains
• E13: No Dark Matter = Proof of Dark Matter? (2019-04-24) — We’ve been failing to detect dark matter for decades. Finally, the latest failure to detect dark matter may have actually proved its existence. One of these is true: either most of
• E14: The Real Science of the EHT Black Hole (2019-05-01) — How do you take a picture of a black hole and what can we learn from it? Our first ever actual bona fide photo of a black hole, made by the Event Horizon Telescope and revealed to
• E15: Why Quantum Computing Requires Quantum Cryptography (2019-05-09) — Quantum computing is cool, but you know what would be extra awesome – a quantum internet. In fact if we want the first we’ll need the latter. And the first step to the quantum inte
• E16: The Cosmic Dark Ages (2019-05-16) — We live in the stelliferous era. Somewhere between 10 and 1000 billion trillion stars fill the observable universe with light. But there was a time before the first star ignited. A
• E17: The Alchemy of Neutron Star Collisions (2019-06-06) — Carl Sagan’s famous words: “We are star stuff” refers to a mind-blowing idea – that most atomic nuclei in our bodies were created in the nuclear furnace and the explosive deaths of
• E18: How Black Holes Kill Galaxies (2019-06-17) — Black holes are really only dangerous if you get too close. Ha, who am I kidding. It turns out they may be responsible for ending star formation across the entire universe.
• E19: The Quasar from The Beginning of Time – STELLAR (2019-06-20) — Recently, the oldest quasar ever seen was discovered by the Gemini North telescope in Hawaii, the Magellan Telescopes at Las Campanas Observatory in Chile, as well as the Large Bin
• E20: Thorium and the Future of Nuclear Energy (2019-07-01) — Energy too cheap to meter – that was the promise of nuclear power in the 1950s, at least according to Lewis Strauss chairman of the Atomic Energy Commission. That promise has not c
• E21: The Quantum Internet (2019-07-15) — When we finally have a quantum internet you’ll be able to simultaneously like and dislike this video. But we don’t. So I hope you like it. The world is widely regarded as being wel
• E22: Did Time Start at the Big Bang? (2019-07-18)
• E23: Deciphering The Vast Scale of the Universe – STELLAR (2019-07-25) — One of the fundamental questions humanity has always asked is how big is our Universe? For much of human history, people believed that Planet Earth was the very center of the entir
• E24: What Caused the Big Bang? (2019-08-06) — Every astronomy textbook tells us that soon after the Big Bang, there was a period of exponentially accelerating expansion called cosmic inflation. In a tiny fraction of a second,
• E25: Exploring Arecibo in VR 180 (2019-08-12) — How can you build a telescope that can see the entire night sky without moving its dish? Well in this special episode of Space Time we took a tour of the Arecibo Observatory with a
• E26: What Happened Before the Big Bang? (2019-08-19) — We actually have a pretty good idea of what might have happened before the Big Bang. That is, as long as we define the Big Bang as the extremely hot, dense, rapidly expanding unive
• E27: How To Become an Astrophysicist + Challenge Question! (2019-08-26) — Do you want to major in Astrophysics? Are you thinking about becoming (or ever just wondered how one becomes) an Astrophysicists? Do you want to know Matt O’Dowd’s origin story? Th
• E28: Is Earth's Magnetic Field Reversing? (2019-09-03) — Earth’s magnetic field protects us from deadly space radiation. What if it were drastically weakened, as a precursor to flipping upside down? I mean, it has before … many, many tim
• E29: Could We Terraform Mars? (2019-09-16) — Humanity’s future is glorious. As we master space travel, we’ll hop from one lifeless world to the next. Life will blossom in our path and the galaxy with shimmer with beautiful Ea
• E30: Is Pluto a Planet? (2019-09-23) — You know what a planet is, right? A big round thing that orbits a star. Uh, not so fast. The surprisingly vicious debate over the planetary status of Pluto has given us a fascinati
• E31: How Many Universes Are There? (2019-09-30) — The universe is big, but it’s peanuts compared to the eternally inflating multiverse. But just how many universes are there? What are they like? And most importantly, what can they
• E32: Black Hole Harmonics (2019-10-07) — Black holes are crazy enough on their own – but crash two together and you end up with a roiling blob of inescapable space that vibrates like a beaten drum. And the rich harmonics
• E33: Loop Quantum Gravity Explained (2019-10-15) — It’s time we talked about loop quantum gravity. What exactly is it? What are the loops? And can it really defeat string theory in our quest for a Theory of Everything?
• E34: Is Time Travel Impossible? (2019-10-21) — Time travel stories are cool because both the past and future are somehow more interesting that the present and because everyone wants a redo. But so far it appears we’re doomed to
• E35: Why We Might Be Alone in the Universe (2019-11-04) — Why does it appear, that humanity is the lone intelligence in the universe? The answer might be that planet Earth is more unique than we've previously assumed. The rare earth hypot
• E36: Does Life Need a Multiverse to Exist? (2019-11-11) — Life exists in our universe. There we go – one hopefully uncontroversial statement. Therefore our universe is capable of producing and supporting life. How am I going? Two for two?
• E37: Can You Observe a Typical Universe? (2019-11-18) — The moment you started observing reality, you hopelessly polluted any conclusions you might make about it. The anthropic principle guarantees that you are NOT seeing the universe i
• E38: Is The Universe Finite? (2019-12-02) — The universe is big, really, really big. Although according to a new paper, it may literally be infinitely smaller than we previously thought.
• E39: The Doomsday Argument (2019-12-09) — Since the dawn of humanity around 100 billion people have lived. How many will live in the future of our species? We might hope for a trillion times that if we colonize the galaxy.
• E40: Do Black Holes Create New Universes? (2019-12-17) — What if every single black hole that formed in our universe sparked the big bang of a new universe? Cosmological natural selection proposes exactly this – but even better, it claim

Frequently Asked Questions

How many seasons does PBS Space Time have? 13 season(s) with 427 episodes.

Where can I watch PBS Space Time? See the Where to Watch section above for current streaming options.