How Old Is It

This is the 4th in a series of video books. The video book currently contains one chapter in two parts:

• Cosmological Fundamentals
• Big Bang ΛCDM Cosmology
• How Old are Stars
• How Old is the Earth-Moon System
• How Old is the Solar System
• James Webb and the Era of Reionization

There is also a Preface that outlines the content, and a Credits and Research segment with resources that can be used for further research by interested students.

There should be at least one more chapter:

• How old is life