PBS Space Time (2015)

Episodes

1. 1 1. What Do Stars Sound Like?2018-01-10 · 14mWe can now map the interiors of stars by “listening” to their harmonies as they vibrate with seismic waves.
2. 2 2. Horizon Radiation2018-01-17 · 15mLearn about Horizon radiation and why it's essential for us to understand as we continue our journey towards the Unruh Effect and Hawking Radiation.
3. 3 3. The End of the Habitable Zone2018-01-24 · 15mThe 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
4. 4 4. Kronos: Devourer Of Worlds2018-01-31 · 10mWhat happens when a star eats its planets? Find out on today’s Space Time Journal Club.
5. 5 5. What is Energy?2018-02-14 · 15mEnergy is the most powerful and useful concept in all of physics, but what exactly is it?
6. 6 6. The Death of the Sun2018-02-21 · 13mWhat exactly will happen when the sun dies?
7. 7 7. The Trebuchet Challenge2018-02-28 · 9mDo you have what it takes to calculate the awesome power of the trebuchet?
8. 8 8. Should Space be Privatized?2018-03-07 · 13mWill the future of space exploration be guided by public or private entities? Which is better?
9. 9 9. Hawking Radiation2018-03-15 · 13mIt’s the most famous prediction of perhaps the most famous genius of our time ... Stephen Hawking's theory of Hawking Radiation
10. 10 10. Scientists Have Detected the First Stars2018-03-21 · 10mWhat do the first stars in the universe, dark matter, and superior siege engines have in common?
11. 11 11. The Andromeda-Milky Way Collision2018-03-28 · 13mThe 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?
12. 12 12. The Unruh Effect2018-04-04 · 12mWorried 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
13. 13 13. Physics of Life2018-04-11 · 14mOur 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.
14. 14 14. Using Stars to See Gravitational Waves2018-04-18 · 13mNow 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
15. 15 15. Black Hole Swarms2018-04-25 · 12mIt’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.
16. 16 16. The Star at the End of Time2018-05-02 · 12mIf 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?
17. 17 17. How Gaia Changed Astronomy Forever2018-05-09 · 11mThe 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,
18. 18 18. Noether's Theorem and The Symmetries of Reality2018-05-16 · 14mConservation 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
19. 19 19. Why Quantum Information is Never Destroyed2018-05-23 · 14mIf 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
20. 20 20. What Survives Inside A Black Hole?2018-06-13 · 15mWe’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
21. 21 21. The Black Hole Information Paradox2018-06-20 · 16mWe’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
22. 22 22. How Asteroid Mining Will Save Earth2018-06-27 · 12mThe days of oil may be numbered, but there’s another natural resource that’s never been touched, Asteroids.
23. 23 23. Will A New Neutrino Change The Standard Model?2018-07-04 · 14mSince 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
24. 24 24. Quantum Invariance & The Origin of The Standard Model2018-07-11 · 14mIn 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.
25. 25 25. The Misunderstood Nature of Entropy2018-07-18 · 13mEntropy and the second law of thermodynamics has been credited with defining the arrow of time.
26. 26 26. Reversing Entropy with Maxwell's Demon2018-07-25 · 15mCan a demon defeat the 2nd Law of Thermodynamics?
27. 27 27. How Close To The Sun Can Humanity Get?2018-08-01 · 15m
28. 28 28. Quantum Theory's Most Incredible Prediction2018-08-15 · 17mLet’s talk about the best evidence we have that the theories of quantum physics truly represent the underlying workings of reality.
29. 29 29. How Will the Universe End?2018-08-23 · 18mWe 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
30. 30 30. Is There Life on Mars?2018-08-30 · 14mThere is no greater hero in our search for life on mars than a little robot named Opportunity.
31. 31 31. The Black Hole Entropy Enigma2018-09-05 · 13mBlack Holes should have no entropy, but they in fact hold most of the entropy in the universe. Let’s figure this out.
32. 32 32. How Much Information is in the Universe?2018-09-12 · 17mThere’s quite a bit of stuff in the universe, to put it mildly.
33. 33 33. Quantum Gravity and the Hardest Problem in Physics2018-09-20 · 17mBetween them, general relativity and quantum mechanics seem to describe all of observable reality.
34. 34 34. How to Detect Extra Dimensions2018-10-03 · 16mPhysics seems to be telling us that it’s possible to simulate the entire universe on a computer smaller than the universe.
35. 35 35. Computing a Universe Simulation2018-10-10 · 16mPhysics seems to be telling us that it’s possible to simulate the entire universe on a computer smaller than the universe.
36. 36 36. What are the Strings in String Theory?2018-10-18 · 17mWhy 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?
37. 37 37. Will We Ever Find Alien Life?2018-10-25 · 18mThe 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
38. 38 38. Are Virtual Particles A New Layer of Reality?2018-10-31 · 18mLet me tell you a story about virtual particles. It may or may not be true.
39. 39 39. Why String Theory is Right2018-11-07 · 17mSome 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.
40. 40 40. Supersymmetric Particle Found?2018-11-14 · 17mWith 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.
41. 41 41. 'Oumuamua Is Not Alien2018-11-21 · 18mTo repeat the space time maxim: it’s never aliens … until it is. So let’s talk about ‘oumuamua.
42. 42 42. Did Life on Earth Come from Space?2018-12-06 · 19mHow 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
43. 43 43. Quantum Physics in a Mirror Universe2018-12-12 · 18mWhen you look in mirror, and see what you think is a perfect reflection. You might be looking at universe whose laws are fundamentally different.
44. 44 44. Why String Theory is Wrong2018-12-20 · 19mThere’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