Why is the Earth Round and the Milky Way Flat? | Space Time | PBS Digital Studios

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Why does our universe make spheres and disks?

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Our universe is not a very diverse place when it comes to shapes. Large celestial bodies become spheres, galaxies become discs, and there is little room for variation. Why is this? Well it turns out physics has some pretty strict rules when it comes to creating new planetary bodies. On this week's Space Time, we explore equillibrium and symmetry, the two defining factors that shape our universe.

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COMMENTS:

Felix Ironfist
https://www.youtube.com/watch?v=JDmKLXVFJzk&lc=z12dwzk4iquld5g0323uivizxm2xxxdk2

Florent POUJOL
https://www.youtube.com/watch?v=JDmKLXVFJzk&lc=z13pcn3rgpzxexgym04cfbeokpeaspzidjw

Reuben Silva
https://www.youtube.com/watch?v=JDmKLXVFJzk&lc=z12bcv4w0muzd3ihm04cchbp0s3kyjpj3p00k

Dom Vasta
https://www.youtube.com/watch?v=JDmKLXVFJzk&lc=z13ns1kqdw2kf5bzm04ccd4arybjvvvgcow0k

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