Life Cycle of Stars

The Process of Change over Time

Life Cycle of Stars

A star follows a pattern of change that can be compared to that of a human. While a star is not alive, several parallels can be observed:

Human Star

Fetus Protostar

Growing Child/Young Adult Main Sequence

Late Adulthood Red Giant

Death White Dwarf/Black Hole/Neutron Star


Spectroscopy is a technique used to explore stars and other phenomena found in space. Much of what we know about astronomy uses this tool, and this part will explain this technique as well as connect our understanding of light to what we know about the universe.

Astronomy - spectroscopy - 2/3

The Origin of the Elements

Elements are formed through nuclear fusion

Definition of fusion

examples of fusion

specific equation for the fusion of helium/carbon/oxygen/iron

About Me

I teach physical science at Kearsarge Regional High School, and am lucky to have the best students in the UNIVERSE!