A theory unites and explains a broad range of observations.
A theory unites and explains a range of observations.
A scientific theory that can account for and predict a wide variety of phenomena across different disciplines is considered a unifying explanation. It provides a comprehensive framework that ties diverse observations together under one set of principles or laws.
Observations are ideas that explains the authors idea.
hypothesis
Theory
It explains our observations in biology and palaeontology.
theory
a theory
a theory
theory
If by "why" you mean "what," a well tested framework that explains a wide range of observations in science is called a theory.
The Big Bang Theory is important as it is the framework for understanding the Universe. The framework holds observations together and explains new observations.