Forty Ways to Know a Star: Using Stars to Understand Astronomy

Explore the fascinating facts and visual wonder of stars in this easy-to-read and beautifully illustrated guide from astrophysicist and popular science blogger Dr. Jillian Scudder.

Stars, the building blocks of the universe, are simply luminous spheres of plasma held together by gravity, but there are many kinds and many remarkable examples. Astoundingly, there are at least 100 billion stars in our galaxy and an estimated two trillion galaxies in our visible universe. Understanding the birth...