A monthly series on astronomy
The Birth of a Star by Vincent Reddish Ph.D., F.R.A.S. of the Nuffield Radio Astronomy Laboratories, Jodrell Bank
What are stars made of, how are they formed, and what are the stages in their lives? In recent years astronomers have produced definite answers to these questions.
The diagram shows the possible future of our sun, and of a red giant star. The sun will take about fifteen thousand million years to become a white dwarf.