Galaxies
- http://www.maa.mhn.de/Scholar/galaxies.html
- Includes a set of notes by Nick Strobel. Topics include the structure of the Milky Way, the characteristics of other galaxies, and finding distances to other galaxies.
High Redshift Supernova Search
- http://www-supernova.lbl.gov/
- Project at Lawrence Berkeley National Lab to search for supernovas in very remote galaxies. This provides an accurate means of measuring the distances to remote galaxies and thereby determining the age of the universe.