Arizona Science explores the latest scientific research and technological innovations taking place in Southern Arizona and at the University of Arizona.
https://originals.azpm.org/arizonascience/
Episode 214: The origin of our moon
In 1974, Planetary Sciences Institute senior scientist emeritus Bill Hartmann and Don Davis developed the modern theory about how the moon was formed. Hartmann says the latest computer models confirm his analysis that the moon was created from the remnants of a giant object's impact with the Earth 4.5 billion years ago.