Explain what a cosmic redshift is and how this provides evidence for the Big Bang Theory of the Universe?
Description Look up to the stars at night and you might see a hazy band of light across the night sky. This is our galaxy, called The Milky Way. This spiral galaxy contains about 100 billion stars and is about 80,000 light years in diameter. Billions of galaxies fill the sky. Some are elliptical, some […]