What is the disproved theory that the universe had no beginning and no end?
Steady State theory.
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Big Bang.
The time when the universe became transparent to light.
Recombination
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Big Bang.
What does science need besides a bold idea?
Evidence
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Scientific Discovery.
What measures how much light has been stretched toward longer wavelengths as the universe expands?
Redshift
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Expanding Universe.
What is the smallest meaningful unit of time in physics, and why?
Planck time (physics breaks down)
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Big Bang Singularity.
What term is used for Einstein's happiest idea that the effects of gravity and acceleration are indistinguishable locally?
Equivalence Principle
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Relativity.