Chapter 3: The Expanding Universe
Footnote: Chapter 3. Mainly talks about the theory of expansion after the big bang.
Footnote: The SBH (Supermassive Black Hole) at the center of a spiral galaxy (much like ours).
Footnote: 3 possible cases of the fate of the universe. ( a ) the Big Crunch; ( b ) Steady eventual expansion speed; ( c ) the Icy Ending (faster and faster expansion, never-ending)
Footnote: Approximated expansion duration: 10 ^ 10 Years. Approximated remaining life of the sun: 5 billion (5 * 10 ^ 9) Years. Solution: maybe move to parallel universe?
Footnote: Concept of Singularity. (infinite space-time curvature, black holes)
Footnote: Conclusion of this chapter.
Personal Recap:
