Crash Course Astronomy

Join host Phil Plait in a Crash Course about the cosmos.

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Episodes

  • Life in the Universe: Crash Course Astronomy #46: asset-mezzanine-16x9
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    Life in the Universe: Crash Course Astronomy #46

    S1 Ep46 |
    Phil gives the course a send off with a look at some of his favorite topics.
  • Deep Time: Crash Course Astronomy #45: asset-mezzanine-16x9
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    Deep Time: Crash Course Astronomy #45

    S1 Ep45 |
    Our Universe’s days are numbered.
  • A Brief History of the Universe: Crash Course Astronomy #44: asset-mezzanine-16x9
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    A Brief History of the Universe: Crash Course Astronomy #44

    S1 Ep44 |
    Thanks to the wonders of physics, we can map a timeline of the universe’s history.
  • Dark Energy, Cosmology part 2: Crash Course Astronomy #43: asset-mezzanine-16x9
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    Dark Energy, Cosmology part 2: Crash Course Astronomy #43

    S1 Ep43 |
    Most of the universe is made up of a mysterious entity that pervades space: dark energy.
  • The Big Bang, Cosmology part 1: Crash Course Astronomy #42: asset-mezzanine-16x9
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    The Big Bang, Cosmology part 1: Crash Course Astronomy #42

    S1 Ep42 |
    Thanks to observations of galaxy redshifts, we can tell that the universe is EXPANDING!
  • Dark Matter: Crash Course Astronomy #41: asset-mezzanine-16x9
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    Dark Matter: Crash Course Astronomy #41

    S1 Ep41 |
    Today on Crash Course Astronomy, Phil dives into some very dark matters.
  • Gamma-Ray Bursts: Crash Course Astronomy #40: asset-mezzanine-16x9
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    Gamma-Ray Bursts: Crash Course Astronomy #40

    S1 Ep40 |
    The discovery of gamma-ray bursts is an epic story.
  • Galaxies, part 2: Crash Course Astronomy #39: asset-mezzanine-16x9
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    Galaxies, part 2: Crash Course Astronomy #39

    S1 Ep39 |
    Active galaxies pour out lots of energy.
  • Galaxies, part 1: Crash Course Astronomy #38: asset-mezzanine-16x9
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    Galaxies, part 1: Crash Course Astronomy #38

    S1 Ep38 |
    Galaxies contain gas, dust, and billions of stars or more.