It also have parts about relativity...
"General relativity is one of the theories presented by Albert Einstein, which proposes a unified description of gravity as a property of space and time, and allows for proper explanation of redshift of light and bending of light by massive objects. Largely verified through a variety of tests, one of the most famous proofs of general relativity occurred during a solar eclipse, during which the light from visible stars was mapped and extrapolated to locate the stars, which appeared in a different place than the stars actually were, due to the warping of light."
As well as The Big Bang and Inflationary Theory...
"The Big Bang was not an explosion within space and time, but instead, the creation of spacetime from nothing. While implications for our role in the universe, the possible existence of other universes, and what, if anything, occurred before, are the subject of speculation..."
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