Q&A: Physics, Astronomy, Cosmology and Computer Science

David H. Bailey
Updated 1 January 2022 (c) 2022

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This section lists numerous questions in the area of physics, astronomy, cosmology and related topics, and then presents answers based on best available scholarship. This material was assembled by the editor, except where otherwise indicated. Each page linked to below includes detailed references.

  1. What is the anthropic principle of cosmology? Anthropic principle
  2. How solid is the evidence for the big bang? Big bang
  3. Can computers think? Computers-think
  4. What are the ultimate constituents of the universe? Constituents
  5. What are the cosmic coincidences? Cosmic coincidences
  6. What is the cosmological constant paradox? Cosmological constant
  7. How are distances to the stars and galaxies calculated? Distance
  8. What is Drake's equation? Drake's equation
  9. How many planets outside the solar system can sustain life? Exoplanets
  10. Where are the extraterrestrial civilizations? (Fermi's paradox) Fermi's paradox
  11. Is the universe fine-tuned for intelligent life? Fine-tuned
  12. Has fine-tuning been refuted? Fine-tuned-refuted
  13. A bibliography of books and papers on universal fine-tuning: Fine-tuned bibliography
  14. What is the inflationary theory of cosmology? Inflation
  15. Why does the universe harbor intelligent life? Intelligent life
  16. What is the multiverse, and what is its significance? Multiverse
  17. Did the universe have a beginning? Universe-beginning