Universe Expansion Discovery
How Scientists Prove the Universe is Expanding

Discover how scientists determine that the universe is expanding by observing distant galaxies' redshift phenomena.

Before the Big Bang
What Existed Before the Big Bang? Exploring Pre-Big Bang Theories

Discover what may have existed before the Big Bang and the scientific theories surrounding this intriguing question.

Before the Bang
What Existed Before the Big Bang? Exploring Cosmology's Greatest Mystery

Uncover the theories surrounding what existed just before the Big Bang in this insightful Q&A video.