Curated OER
Galaxies Galore!
Twelve of these slides display a picture of a galaxy and pose the question, "What kind of galaxy is this?" There are two slides about the Hubble Space Telescope's tuning fork, and another that asks viewers to analyze the number of...
Other
Sky Server: Galaxies
SkyServer explains and presents images of spiral galaxies, elliptical galaxies, irregular galaxies, galaxy clusters, galaxy collisions and the like.