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Measuring the Universe With a 14-Billion Light-Year Ruler

Since the time of the ancient Greeks, scientists have been constructing a cosmic measuring tape to measure the universe from our own backyard all the way to its ever-expanding edge: the cosmic distance ladder. In this video, we climb that ladder and explore how each rung has revealed something new and previously unthinkable about the universe we live in.

Measuring the Universe With a 14-Billion Light-Year Ruler

10m 40s

  • How Feathered Dinosaurs Accidentally Invented Flight: asset-mezzanine-16x9

    How Feathered Dinosaurs Accidentally Invented Flight

    S13 E7 - 16m 18s

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  • What Could We See with a Planet-Sized Telescope?: asset-mezzanine-16x9

    What Could We See with a Planet-Sized Telescope?

    S13 E6 - 16m

    The James Webb Telescope just took a photo of a newly discovered exoplanet. Exciting stuff but the raw image just looks like a small, faint dot—not a fully detailed world. The question is, just how big would a telescope need to be to actually see an alien world in detail? Let’s explore diffraction, resolution, wild telescope tech, and one mind-blowing idea that could change everything.

  • The Argument for De-Extinction: Explained: asset-mezzanine-16x9

    The Argument for De-Extinction: Explained

    S13 E5 - 26m 19s

    Dire wolves are back—sort of. Colossal Biosciences claims to have resurrected this extinct predator, but what did they really do? Joe talks with the scientists behind the headlines to explore the truth, tech, and ethics of “de-extinction.”

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