Curated OER
Virial Theorem Lesson
Ninth graders describe how equilibrium can occur as the balance of two effects. They model the stability of elliptical galaxies based on how fast stars within the galaxy are moving.
Space Telescope Science Institute
Galaxy Hunter: A Cosmic Photo Safari
Travel the universe and learn about galaxies. Investigate Hubble Deep Field observations to learn more.
CK-12 Foundation
Ck 12: Earth Science: Galaxies
[Free Registration/Login may be required to access all resource tools.] Examines galaxies and how they are divided into three types according to shape.
NASA
Nasa Star Child: Galaxies
This resource has two levels: one for younger viewers and one for older viewers. It surveys the basic galaxy types and provides details.
NASA
Nasa Star Child: Galaxies (Level 1)
This site provides an introduction to galaxies for the younger student, that is divided into 2 levels of understanding. Find out what type of galaxy looks like a giant pinwheel. Audio content included. Good glossary, and a printable...
Other
University of Cambridge Cosmology: Galaxies
This site from the University of Cambridge allows you to view information on spiral, elliptical, and Milky Way galaxies, as well as galaxy clusters. Provides basic facts about each one.
Other
University of Leicester: Elliptical Galaxies
Provides a general overview of elliptical galaxies, including a look at what defines an elliptical galaxy, what determines its shape, and it's physical nature.
NASA
Nasa Space Place: What Is a Galaxy?
This resource explores the different types of galaxies through text and images.
Other
Sky Server: Galaxies
SkyServer explains and presents images of spiral galaxies, elliptical galaxies, irregular galaxies, galaxy clusters, galaxy collisions and the like.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Galaxy?
Explains what galaxies are and their different shapes. Includes details on the Milky Way.