Pictures of a distant supernova remnant show two concentric rings, providing clear evidence that exploding white dwarf stars ...

What is the current theory of how our universe began? Our current model for the early universe is known as the "hot Big Bang.

The phenomenon was named Big Bang Nucleosynthesis, and it’s the only way, as far as anyone knows, that so much helium could have been formed throughout so much of the universe.

These gravitational waves created by the Big Bang are thought to have rippled throughout reality over the mere 10^-34 seconds required to expand the universe over 100 trillion trillion times.

The Big Bang is our modern understanding of the history and evolution of the universe. It is not, however, a theory of the creation of our cosmos.

The strongest evidence for the Big Bang came in 1964 when scientists at the Bell Labs discovered the cosmic microwave background radiation. Skip to content Introducing the all-new Astronomy.com Forum!

The Big Bang Theory explains how the universe began with an infinitely hot and dense single point that inflated to form the ever-expanding cosmos we see today.

Crucially, this bounce occurs entirely within the framework of general relativity, which applies on large scales such as ...

In this video, Professor Brian Cox explains how evidence for the Big Bang can be found by analysing the colour of starlight. Theories about the development of the Universe, such as the Big Bang ...

Observational evidence for the Big Bang includes the analysis of the spectrum of light from galaxies, which reveal a shift towards longer wavelengths proportional to each galaxy's distance in a ...