University of California
University of California Berkeley: Classifying Galaxies
Find out how galaxies are classified and then see if you can apply that knowledge to identify the different types of galaxies. In addition to explaining Hubble's galaxy classification system, the site has links to Hubble Space Telescope...
Georgia Department of Education
Ga Virtual Learning: Galaxies, the Milky Way and Beyond
In this interactive tutorial students will explore galaxies. Learn what the Milky Way Galaxy is like, how various galaxies are grouped into clusters and superclusters and why those particular galaxies clump together.
Education.com
Education.com: Different Types of Galaxies
[Free Registration/Login Required] A downloadable worksheet that looks at the features of three types of galaxies.
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...
Space Telescope Science Institute
Amazing Space: Galaxies Galore: Games and More
This is a fun and useful site to learn about galaxies. Content includes a building model to create your own Milky Way, games for learning the various types of galaxies, and more fun games.
NASA
Nasa Space Place: What Is a Galaxy?
This resource explores the different types of galaxies through text and images.
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.
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.
Other
Sloan Digital Sky Survey: Galaxy Zoo
Explore the universe like you have never seen it. Take part in classifying images of galaxies taken from the Hubble telescope archives. This is a crowdsourced scientific research project.
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.
California Institute of Technology
Cool Cosmos: Ask an Astronomer
Cool Cosmos and NASA help explore the world of galaxies! This site provides the answers to kid's most frequently asked questions.
PBS
Pbs: Nova Online: Galaxies, Clusters, and Superclusters
PBS site explores these building blocks of the universe as well as their various types and clusters.
Other
University of Leicester: Irregular Galaxies
Provides a general overview of irregular galaxies, including a specific look at type I and type II irregulars.
PBS
Pbs Learning Media: Birth of a Supernova, Type Ia
In this interactive activity from NOVA Online, learn about a type of exploding star - a Type Ia supernova - that is so bright that astronomers can measure the distance to the galaxy in which it resides, and even learn which elements make...
NASA
Nasa: Antennae Galaxies
This image, titled "Fire Within the Antennae Galaxies" features three individual pictures of the antennae galaxies taken with different equipment (x-ray, infrared, etc). The text under the image details various specifics about the picture.
California Institute of Technology
Spitzer Science Center: Image of Young Galaxies
The Old and 'Red' Distant Galaxies in this space telescope image are barely visible (though they are clearly marked). In addition, a detailed textual overview explains various specifics of the picture.
Instituto Latinoamericano de la Comunicacion Educativa
Red Escolar: El Descubrimiento De Las Galaxias
Resource provides a general overview of galaxies, including a look at the "mysterious" nebulae, the Andromeda galaxy, and the various types of galaxies.
Other
Galaxy Photography and Digital Imaging
A site for images and how to take images of the night sky. Backed by Meade, a maker of telescopes. Good information on equipment and techniques as well.
Other
Sky Server: Scavenger Hunt
In this site, from the SkyServer of the Sloan Digital Sky Survey users hunt for stars, galaxies, quasars, asteroids and meteors. Learn what they look like and how to find them.
Other
Sky Server: Color
SkyServer answers why stars have different colors and shows what you can learn by studying the colors of stars, galaxies, and other objects.
Globio
Glossopedia: Stars
Many of the objects you can see in the night sky are stars, large objects in space that produce light. Our galaxy, the Milky Way, contains more than 100 billion stars. Stars are so far away that their light does not reach us for years....