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...
TED Talks
Ted: Ted Ed: Dark Matter: How Does It Explain a Star's Speed?
Video describes how stars move in a spiral galaxy and how their speeds can be explained by accounting for dark matter. [3:17] Includes a brief quiz and a list of additional resources to explore.
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.
National Earth Science Teachers Association
Windows to the Universe the Milky Way Galaxy
Learn what Milky Way galaxy is made of and what it looks like, as well as how it relates to other known galaxies. Read "Questions and answers about the Milky Way" for further information.
Australian Broadcasting Corporation
Australian Broadcasting Corporation: News in Science: Galaxy Spinning the Wrong Way
From ABC News in Science, this February 2002 article revolves around findings posted by images from the Hubble Space Telescope which suggest a spiral galaxy spinning in an opposite direction than expected.
Mocomi & Anibrain Digital Technologies
Mocomi: What Is a Galaxy?
Explains what galaxies are and their different shapes. Includes details on the Milky Way.
Curated OER
Science Kids: Science Images: M81 Spiral Galaxy
An amazing photo of the M81 spiral galaxy taken by the Hubble Space Telescope.
California Institute of Technology
Spitzer Space Telescope: Dissection of a Galaxy
The Dissection of a Galaxy image offered here examines how a galaxy functions by taking it apart through an image. In addition, a detailed textual overview explains various specifics of the picture.
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.
California Institute of Technology
Nasa: Splendid Splinter
The Splendid Splinter photo is a picture of a spiral galaxy and acts as part of a series of photographs taken from the Spitzer Space Telescope. The picture is accompanied by a textual overview of the Splinter Galaxy with specific...
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.
Australian Broadcasting Corporation
Australian Broadcasting Corporation: News in Science: Milky Way Is Many Tentacled Beast
From ABC News in Science, Larry O'Hanlon's article discusses research connected to the size of the Milky Way Galaxy. The article suggests that the galaxy, instead of being a neat spiral, stretches out through a series of arms.
Space Telescope Science Institute
Hubble Space Photographs: Hst's Greatest Hits 1990 1995
Breathtaking images from the Hubble Space Telescope give a new perspective to our world.
NASA
Nasa: The Space Place
This site from NASA's Space Place is geared towards early elementary learners. It offers detailed instructions for crafts and activities related to space, games and a teacher resource area. Students can also ask an expert at this site.
NASA
Nasa: Spitzer Images
See some of the beautiful color images that were taken by the Spitzer space telescope.
Space Telescope Science Institute
Hubble Site: Way Out!
Can you help a cow plot a path out of the Milky Way? This hilarious space game is for all ages and is offered by HubbleSite. Users may pick their level of expertise and can choose from novice, pretty smart about space, or an astrobrainiac.