Big-bang Theory (Noun)
Meaning
(cosmology) the theory that the universe originated sometime between 10 billion and 20 billion years ago from the cataclysmic explosion of a small volume of matter at extremely high density and temperature.
Classification
Nouns denoting cognitive processes and contents.
Examples
- The big-bang theory is widely accepted by scientists as the most accurate explanation for the origin of the universe.
- According to the big-bang theory, the universe began as an infinitely hot and dense point and expanded rapidly around 13.8 billion years ago.
- The big-bang theory suggests that the universe has been expanding and cooling ever since its inception.
- The discovery of cosmic microwave background radiation in the 1960s provided strong evidence for the big-bang theory.
- Many scientists believe that the big-bang theory is the most well-supported explanation for the origins of the universe, based on a wide range of observational evidence.