What Would Happen If a Comet Hit Earth? 🌎 ☄️ How the Universe Works

Explore the mysteries of comets, from the clues they carry about our past to the devastating impacts they could unleash if they venture too close to Earth. About How the Universe Works: With a cast of experts and eye-popping CGI, we're looking under the celestial hood to tell the greatest story of...

61 min - Space & the Universe - Science Channel

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