Science and Nature

PBS Space Time

PBS 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. Host Matt O'Dowd breaks down both the basic and incredibly complex sides of space and time.

Why Life on Mars Will Doom Humanity

19m 14s

Recent findings have brought us closer than we’ve ever been to confirming life beyond the Earth. As we wait for confirmation or otherwise, let’s think about what this will tell us about life everywhere, and also about our own imminent destruction.

Episodes

  • Why Didn’t Antimatter Destroy The Universe?: asset-mezzanine-16x9

    Why Didn’t Antimatter Destroy The Universe?

    S11 E2 - 14m 50s

    At one-one-thousandth of a second after the Big Bang, the great annihilation event should have wiped out all matter, leaving a universe of only radiation. Why still don't know why any matter survived. Well, a new finding from the LHC brings us one step closer to understanding why there's something rather than nothing.

  • New Evidence: Earth Had Rings (and Might Regain Them): asset-mezzanine-16x9

    New Evidence: Earth Had Rings (and Might Regain Them)

    S11 E1 - 16m 30s

    There’s an extremely good chance that Earth once did have a ring system. At least, that’s the proposal by a recent study that has evidence that a mysterious burst in meteor activity nearly half a billion years ago was actually caused by that ancient ring system collapsing onto the Earth. And, you know, if we had a ring once maybe we can have one again.

Extras + Features

  • Black Holes from the Dawn of Time: asset-mezzanine-16x9

    Black Holes from the Dawn of Time

    S2 - 10m 16s

    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?

  • Quantum Entanglement (The Bohr-Einstein Debate): asset-mezzanine-16x9

    Quantum Entanglement (The Bohr-Einstein Debate)

    S2 - 11m 24s

    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.

  • Will the Universe Expand Forever?: asset-mezzanine-16x9

    Will the Universe Expand Forever?

    S2 - 9m 51s

    Throughout history, there has been much speculation about what the fate of the universe would be. Many theorized that the universe would eventually succumb to the pull of gravity, and reverse its expansion in what was being called ‘The Big Crunch.’ However, with the help of mathematical equations from Newton, Einstein, and Alexander Friedmann, we now have an answer.

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