A&E Television
History.com: The Space Race: Interactive Universe
A virtual journey through space offers photos and facts about Earth and its neighboring planets, comets, other celestial bodies of the Solar System, and the Milky Way and Andromeda galaxies.
University of Wisconsin
Constellations and Their Stars: Andromeda
This site has factual information about Andromeda. Also contains other links.
California Institute of Technology
Spitzer Science Center: Galactic Collision
Under the heading, "Forensic Evidence of a Galactic Collision" this site examines specific details of an image displaying the collision involving the Andromeda Galaxy with a neighboring galaxy (Messier 32) more than 200 million years ago.
Other
University of Alabama: M31: The Andromeda Galaxy
View satellite photographs of the Andromeda 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.
NASA
Nasa: Marshall Space Flight Center: Chandra
NASA's Chandra X-ray Observatory site features a photograph and explanation of a "cool" black hole in the Andromeda Galaxy (M31).
Curated OER
Astro Lab: Space, a Contemporary Vision of the Universe
Explore how our contemporary understanding of the universe came to be. This overview looks at the history of three main areas of study, namely space, time, and the arrangement of matter.