Origin of the Universe

Big Bang Theory

The most accepted theory that states the universe began from a very small, hot, and dense point around 14 billion years ago.

Redshift

The phenomenon where light from galaxies is stretched toward red, indicating they are moving away from us.

Cosmic Microwave Background Radiation (CMBR)

Leftover radiation or heat from the early universe that serves as evidence for the Big Bang theory.

Abundance of Light Elements

The large amounts of hydrogen and helium found in the universe, predicted by the Big Bang theory.

Inflation Theory

An extension of the Big Bang Theory stating that the universe experienced a very rapid expansion in the first tiny fraction of a second.

Steady State Theory

The theory claiming the universe has always existed and that new matter is constantly created as it expands.

String Theory

A theoretical idea proposing that all matter is made of tiny vibrating strings instead of particles.

M-Theory

A result of the contact of two hyperdimensional branes which suggests strings are attached to a sheet on branes