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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.
Curated OER
Sky Server: Quasars
This site from the SkyServer offers information as to what quasars are as well as provides links to strange objects, radio astronomy and research. This is a great sit to check out the brief but factual information on the subject.