This video explores the development of scientific theories over time using one of the biggest scientific questions of all time as an example: how did our universe begin? From the static model, to red shift, the cosmological constant, the Steady State model, the Big Bang theory and cosmic microwave background, students will come to understand that scientific theories are by no means eternal.

Originally released by ClickView/VEA, 2019. Streaming video file encoded with permission for digital streaming by Infobase on December 18, 2019.

Why? The Development of Scientific Theories (7:49); .