Steady State Theory (Noun)
Meaning
(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; "the steady state theory has been abandoned in favor of the big bang theory".
Classification
Nouns denoting cognitive processes and contents.
Examples
- The steady state theory was widely accepted in the mid-20th century as an explanation for the origins of the universe.
- The steady state theory proposed that the universe has always existed in its current form, with no beginning or end.
- The discovery of cosmic microwave background radiation in the 1960s led to the decline of the steady state theory.
- The steady state theory has been largely discredited by observations of the universe's large-scale structure and the abundance of light elements.
- The big bang theory eventually replaced the steady state theory as the most widely accepted explanation for the origins and evolution of the universe.