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Listed under: Science > Earth and space > Universe > Galaxies

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Very Large Telescope

TLF-IDM016690

This 10 minute video segment from Catalyst explains why the telescope is located where it is and relates it to the properties of light.

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Threshold 2: The Stars Light Up

TLF-IDM021203

This short video gives an overview of the emergence of the first atoms, hydrogen and helium, 380,000 years after the Big Bang. The effects of gravity led to tiny variations in the density of matter throughout the Universe, which in turn became heated, resulting in fusion and the emergence of the first stars, galaxies, and ...