steady state theory
Definition
Noun: 1. A cosmological model: The steady state theory is a model of the universe proposing that the universe is unchanging in its large-scale properties over time. It suggests the universe has no beginning or end and maintains a constant average density, with new matter continuously created to fill the gaps left by the expansion of space.
Usage
- The steady state theory was a major competitor to the Big Bang theory in the mid-20th century.
- Observations of cosmic microwave background radiation provided strong evidence against the steady state theory.
Advanced Usage
- "In the context of the steady state theory...": Used to specify a discussion or prediction based on this particular cosmological framework.
- In the context of the steady state theory, the universe would have no singular point of origin.
Variants and Related Words
- Steady state model: A synonymous phrase for the steady state theory.
- Perfect Cosmological Principle: The foundational principle of the steady state theory, stating that the universe is homogeneous and isotropic in space time.
Synonyms
- Continuous creation theory
Antonyms
- Big Bang theory
Noun
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(cosmology) the theory that the universe maintains a constant average density with matter created to fill the void left by galaxies that are receding from each other
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the steady state theory has been abandoned in favor of the big bang theory
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