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The best book ever written.

A masterful work encompassing the whole of human existence and the universe, with a focus on science.

Sagan discusses
- evolution,
- Kepler, astrology and acceptance of truth in spite of what outcome is desired,
- Venus and Mars, including the made-up belief of life on Mars a century ago,
- the Voyager spacecrafts' Grand Tour of the Outer Planets (a rare alignment),
- ancient Greek scientists,
- Relativity,
- atoms, elements, and how star make them,
- Creation Myths, incl Hindu ones that are longer than the current discovered age of the Universe,
- genes, DNA, the brain, and books: the progression of how and how much information we can store and access,
- SETI, and Jean-François Champollion's translation of Egyptian hieroglyphs,
- the Library of Alexandria.