PBS Space Time

Quantum Physics in a Mirror Universe

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.

Quantum Physics in a Mirror Universe

12m 19s

  • What’s The Universe’s Strongest Particle Accelerator?: asset-mezzanine-16x9

    What’s The Universe’s Strongest Particle Accelerator?

    S10 E11 - 12m 51s

    Cern's Large Hadron Collider routinely collides particles at energies equivalent to a fraction of a second after the Big Bang, but a particle with the energy of an LHC collision hits every square kilometer of the Earth every single second. And we only relatively recently figured out where these cosmic rays are coming from.

  • Can Black Holes Unify General Relativity & Quantum Mechanics?: asset-mezzanine-16x9

    Can Black Holes Unify General Relativity & Quantum Mechanics?

    S10 E10 - 13m 28s

    Black holes clash in multiple ways with quantum mechanics. One such clash is the black hole information paradox—and a proposed solution—black hole complementarity—may forced us to radically rethink what it even means to say that something to exists.

  • Interstellar Expansion WITHOUT Faster Than Light Travel: asset-mezzanine-16x9

    Interstellar Expansion WITHOUT Faster Than Light Travel

    S10 E9 - 20m 15s

    In the far future we may have advanced propulsion technologies, but what if those technologies never materialize? Are we imprisoned by the vastness of space—doomed to remain in the solar system of our origin? Perhaps not. A possible path to a contemporary cosmic dream may just be to build a ship which can support human life for several generations; a so-called generation ship.

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