PHYSICS - Astrophysics - The Big Bang

The video explores the Big Bang Theory, which posits that the universe began with a massive explosion and has been expanding ever since. Two key pieces of evidence support this theory: cosmic microwave background radiation (CMDR) and redshift. CMDR was discovered by Penzias and Wilson, who found persistent microwave noise that did not originate from the solar system, aligning with Robert Dicke's predictions about the Big Bang. Redshift demonstrates how light from distant stars shifts to the red end of the spectrum, indicating that galaxies are moving away from us, further supporting the theory of an expanding universe.

What is cosmic microwave background radiation and why is it significant?

Explain the concept of Redshift and its implications for the universe.