EXPLORE: Redshift & Blueshift (BrainPop)

1. Electromagnetic Spectrum

Because the evidence to support the Big Bang theory deals with radiation, it is important to understand the various forms of radiation in the universe. The collection of all radiation (also known as light and heat), visible and invisible to the naked eye, is known as the electromagnetic spectrum. The spectrum of light being emitted from stars also tells scientists about the elements that make up the stars.