Video Archive

  • Asteroids Could Be ‘Time Capsules’ Showing How Life Began on Earth

    As much as we tend to panic over the idea of an asteroid crashing into the Earth, one possible explanation for life on Earth is that an asteroid brought it here in the first place.

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  • Hubble’s Contentious Constant

    There are two leading ways to measure the universe’s rate of expansion, and for fifteen years, they more or less agreed with one another. Not anymore, and that’s a big deal.

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