University of Texas at Austin
The University of Texas Mc Donald Observatory: Stars and Galaxies
Do galaxies collide? Apply concepts of scale to grasp the distances between stars and galaxies.
American Association of Physics Teachers
Com Padre Digital Library: Open Source Physics: Colliding Galaxies
Examine colliding galaxies with this science simulation that demonstrates how galactic bridges are formed and how galactic cores are made up.
NASA
Nasa: Dwarf Galaxies
This space telescope image, "Dwarf Galaxies Swimming in Tidal Tails" features little galaxies forming in the midst of two colliding galaxies. In addition, a detailed textual overview explains various specifics of the picture.
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.
NASA
Nasa: Spiral Galaxy
This Spiral Galaxy image is part of a series of photographs taken from the Spitzer Space Telescope. The picture is accompanied by a textual overview of a spiral galaxy with specific attention given to the details of the picture.
Space Telescope Science Institute
Hubble Site: Secret Lives of Galaxies
This site is provided by HubbleSite from NASA. "Telescopes around the world are beginning to harvest new clues to the origin and evolution of the universe's largest building blocks, the galaxies." Site offers links to images, video,...
University of Cambridge
University of Cambridge: Cosmology: Galaxies
This site from the Cambridge Relativity provides a brief description of the structure of the Milky Way galaxy. The parts described are the disc, bulge, and halo.
Cosmos 4 kids
Cosmos4 Kids: Galaxies
Learn the basic facts about galaxies. Brief, to the point text make this site most appropriate for younger students.
Science Buddies
Science Buddies: The Milky Way and Beyond: Globular Clusters
Globular clusters, compact groups of about a million stars that move around together in galaxies, are among the oldest objects found in the universe. Since they are found most galaxies and since they've been around for so long, globular...
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.
PBS
Pbs Learning Media: Spin a Spiral Galaxy
This interactive activity from NOVA Online lets you spin a spiral galaxy, including our own Milky Way. It demonstrates that what you can learn from visible light observations of a galaxy is largely determined by the angle from which you...
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
Astronomy Picture of the Day: Quasar Galaxy Collision
An image of a quasar. The large redshifts imply that quasars lie near the edge of the observable universe and must emit tremendous amounts of energy. There are also many embedded links to related topics.
Australian Broadcasting Corporation
Australian Broadcasting Corporation: News in Science: Spiral Galaxy as Never Seen Before
From ABC News in Science, this article covers information related to a photo of the largest spiral galaxy ever captured in a picture. The photo is taken of the Pinwheel galaxy.
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.
Australian Broadcasting Corporation
Australian Broadcasting Corporation: News in Science: Sucked In! Our Galaxy Eats Neighbour
From ABC News in Science, Judy Skatssoon's article discusses evidence and research surrounding the remains of the Arcturus stream of stars, remains that suggest the possibility of the Milky Way as a carnivore galaxy.
NASA
Nasa Star Child: Can You See Other Galaxies Without a Telescope?
Learn how and when to look up into the sky to see the Andromeda galaxy.
Other
University of Alabama: M31: The Andromeda Galaxy
View satellite photographs of the Andromeda Galaxy.
NASA
Nasa: The Space Place: How Old Do I Look?
Find out how the Galex space telescope is determining the age of galaxies using red-shifted light. View pictures taken by Galex. This site also has a game which involves determining the ages of objects.
Space Telescope Science Institute
Hubblesite: News Center Release Archive
This site from Hubblesite has a very long list of Hubble Space Telescope Images listed by subject. General categories of subjects include Solar System, Stars, Nebulae, Star Clusters, Novae, Supernovae, Stellar evolutionn, Galaxies, and...
Ministerio de Educación (Spain)
Ministerio De Educacion: Las Galaxias Modulo Vii Unidad 2
In this module you can learn about galaxies, their morphology classification, masses, distances, etc.
Kidport
Kidport: Space Science
This complete resource will help students to improve their understand of space exploration. Includes images of the universe, galaxies, stars and planets.
Read Works
Read Works: In Our Galaxy, Far, Far, Away
[Free Registration/Login Required] An informational text about earth-like planets in other solar systems. A question sheet is available to help students build skills in reading comprehension.
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