Astronomers use gamma decay to study the lives of the stars.

Small stars can hang around for billions of years and slowly fade away, but large stars have a spectacular way to wave goodbye. When a large star collapses, it can start a new round of nuclear fusion that powers an explosion called a...

Supernovae are divided into two basic physical types, including a description of supernova types and how they are classified based on the existence of hydrogen spectral lines. Definitions of key terms are provided.

This image, titled "Dead Star Rumbles" features a medium-sized image of the remnants of Cassiopeia A and its surrounding infrared echo. The text under the image details various specifics about the picture.

Learn what black holes are and the myths that surround them.