The Sky at Night

Name: The Sky at Night S26E10 - The Mystery of the Spiral Arm
Uploaded: 1982-09-26
Description: Why are some galaxies, such as ours, spiral in form like huge Catherine wheels, and why are stars born inside these arms? Patrick Moore and Dr John Beck -man of Queen Mary College talk about the mysteries of spiral galaxies, and how the massive, powerful stars inside the arms affect the whole course of the history of our own galaxy and other systems.