Episodes
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Was the Milky Way a Quasar?
S6 E12 - 13m 31s
The Milky Way galaxy is relatively calm by the destructive standards of the rest of the Universe, and compared to its own very violent past. But just recently we discovered that its violent past was much more recent than we thought - and could even happen again.
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How We Know The Earth Is Ancient
S6 E11 - 13m 38s
In astronomy we talk about billions of years like it’s no big deal. But how can we be sure about timescales so far beyond the capacity for human intuition? Our discovery of what we now call deep time is very recent - as recent as our discovery of the true spatial vastness of our universe. And it came as scientists tried to measure the age of the Earth. What they found was shocking and humbling.
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What’s On The Other Side Of A Black Hole?
S6 E10 - 11m 54s
Normal maps are useless inside black holes. At the event horizon - the ultimate point of no return as you approach a black hole - time and space themselves change their character. We need new coordinate systems to trace paths into the black hole interior. But the maps we draw using those coordinates reveal something unexpected - they don’t simply end inside the black hole, but continue beyond.
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How Black Holes Spin Space Time
S6 E9 - 12m 49s
If there’s one thing cooler than a black hole it’s a rotating black hole. Why? Because we can use them as futuristic power generators, galactic-scale bombs, and portals to other universes.
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How Do Quantum States Manifest In The Classical World?
S6 E8 - 14m 42s
This episode of space time is brought to you by the information flowing through an impossibly complex network of quantum entanglement, that just happens to mutually agree that you and I exist inside it. Oh, and Schrodinger’s cat is in here too.
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Does Quantum Immortality Save Schrödinger's Cat?
S6 E7 - 11m 31s
To quote eminent scientist Tyler Durden: "On a long enough timeline, the survival rate for everyone drops to zero." Actually… not necessarily true. If the quantum multiverse is real there may be a version of you that lives forever.
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How Decoherence Splits The Quantum Multiverse
S6 E6 - 15m 9s
Why is it that we can see these multiple histories play out on the quantum scale, and why do lose sight of them on our macroscopic scale? Many physicists believe that the answer lies in a process known as quantum decoherence.
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Does Consciousness Influence Quantum Mechanics?
S6 E5 - 13m 17s
It’s not surprising that the profound weirdness of the quantum world has inspired some outlandish explanations. One particularly pervasive notion is the idea that consciousness can directly influence quantum systems - and so influence reality. Today we’re going to see where this idea comes from, and whether quantum theory really supports it.
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Are Axions Dark Matter?
S6 E4 - 12m 9s
What does the strong nuclear force, the fundamental symmetries of nature, and a laundry detergent have in common? They’re all important parts of the tale of the axion - a tale whose end may take us beyond the standard model and solve one of the most vexing mysteries in astrophysics.
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Are There Infinite Versions of You?
S6 E3 - 12m 22s
If the universe goes on forever, does that mean there are infinite versions of you out there?
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Hacking the Nature of Reality
S6 E2 - 13m 34s
In particle physics we try to understand reality by looking for smaller and smaller building blocks. But what if that has been the wrong philosophy all along?
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Solving the Three Body Problem
S6 E1 - 13m 35s
The three body problem is famous for being impossible to solve. But actually it's been solved many times, and in ingenious ways. Some of those solutions are incredibly useful, and some are incredibly bizarre.
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