The Big Bang theory. The coining of this term is attributed to Fred Hoyle.
The Big Bang theory
The Big Bang theory suggests that the universe began expanding from a very high-density and high-temperature state, but it was not an explosion in the traditional sense. It was a rapid expansion of space itself, not an explosion within preexisting space.
The theory that describes the origin of the universe as an explosion of all matter and energy is known as the Big Bang Theory. According to this theory, the universe began as a singularity and has been expanding ever since, roughly 13.8 billion years ago. This expansion continues today, leading to the vast and dynamic universe we observe.
Heliocentric theory
The leading scientific theory regarding the start of the universe is a cosmological model called the "Big Bang", which asserts the universe started out compressed, very hot and dense, that visible matter in its current form was consequent to an outward explosion. Evidence to support the theory includes the currently observable expansion of the universe, and a residual background radiation apparent in all directions.
That is, more or less, the description of the Big Bang.
Try Big Bang Theory. Universe started as a big explosion, which expandd rapidly etc
The Big Bang theory
Big Bang Theory
A theory that the universe formed in a huge explosion
Well I do now one theory about the universe. It's the big bang theory. The big bang theory is a theory about how the universe was created.Scientist think that a big explosion created the universe.Scientist found lots of evidence that the big bang theory was true.
The big bang theory which is a theory of cosmology holding that the expansion of the universe began with a gigantic explosion between 12 and 20 billion years ago
The big bang theory does not state that "the universe began with a gigantic explosion." The theory suggests that our universe originated from an infinitesimally small point called a singularity. Since all of space was all localized within this point, the rapid expansion of the universe isn't an explosion. An explosion occurs within space, but the expansion of space itself isn't an explosion. Quite simply, there isn't anything outside of space for the universe to explode into. Thus the "big bang" wasn't big, nor did it go bang. Around the time of the big bang (about 13.7 billion years ago), the universe was much hotter and expanding very rapidly (somewhat analogous to an explosion but by no means an actual explosion).
There are many different theories on this, but a well-known one is the big bang theory, where an explosion created the universe practically.
The Big Bang theory suggests that the universe began expanding from a very high-density and high-temperature state, but it was not an explosion in the traditional sense. It was a rapid expansion of space itself, not an explosion within preexisting space.
steady state theory
The theory that describes the origin of the universe as an explosion of all matter and energy is known as the Big Bang Theory. According to this theory, the universe began as a singularity and has been expanding ever since, roughly 13.8 billion years ago. This expansion continues today, leading to the vast and dynamic universe we observe.