The night sky is dark because the universe has a finite age, limiting the light from distant stars
Image: Brody Wesner, CC0, via Wikimedia Commons
The night sky is dark because the universe has a finite age, limiting the light from distant stars
Tests of general relativity
Light bent by the Sun confirmed Einstein's predictions
Penrose–Hawking singularity theorems
Penrose-Hawking singularity theorems predict gravitational singularities under certain conditions
the CMB power spectrum tells us
The CMB power spectrum reveals the universe's age, composition, and geometry
Many-worlds interpretation
All outcomes occur in branching parallel universes
Criticism of the theory of relativity
Michelson-Morley experiment null result
Cosmic inflation
Cosmic inflation explains the universe's uniform temperature
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