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Free science and education videos tagged supernova (page 1)

Our View of the Universe

Our View of the Universe

The universe began with the big bang, and for the first four hundred thousand years all matter was ionised, indicated by the blue region in the diagram. When the universe had cooled enough to allow...

This science video contains:
matter, stars, earth, big bang, galaxies, light, solar system, time, space, supernova, expansion