Cosmology studies the origin, structure, and fate of the universe. Modern cosmology is built on observations from telescopes, particle physics, and general relativity. Here we address common misconceptions and explain the evidence.
Common Claims
- "The Big Bang is just a theory"
- "The Big Bang violates the first law of thermodynamics"
- "The universe can't come from nothing"
- "The Big Bang requires a cause"
- "The universe is fine-tuned for life"
- "Scientists have never observed the Big Bang"
- "The universe is only 6,000 years old"
- "Redshift is not evidence of expansion"
- "The cosmic microwave background is not from the Big Bang"
- "Dark matter and dark energy are made up"
Key Concepts
Lines of Evidence
Historical Context
Further Reading
This section aims to present the scientific consensus accurately. If you find errors, please contribute corrections.