This is the thirty-fifth video of the Crash Course – Astronomy series, hosted by Dr. Phil Plait. This video describes the formation and evolution of star clusters, and give details on examples in the sky. It covers both open clusters and globular clusters.
From the video description:
Table of Contents:
- Open clusters contain hundreds or thousands of young stars 00:29
- Over time, open clusters evaporate 3:23
- Globular clusters contain hundreds of thousands of old stars in spherical formation 5:50
- Globular clusters have less heavy elements, thus probably do not have planets 6:43