Cosmic microwave background radiation is the thermal remnant from the Big Bang, providing a snapshot of the universe when it was just 380,000 years old. It is a nearly uniform background of microwave radiation that fills the universe and is a critical piece of evidence for the Big Bang theory, offering insights into the early conditions and subsequent evolution of the cosmos.

Cosmic Microwave Background Radiation

Cosmic microwave background radiation

thermal remnant from the Big Bang

snapshot of the universe

uniform background of microwave radiation

critical piece of evidence for the Big Bang theory

Early conditions of the cosmos

subsequent evolution of the cosmos

The Cosmic Microwave Background Radiation: Evidence of the Big Bang

Fundamental Forces in the Universe

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