Young students can find the world of college physics difficult at times, and it's always good to have a wide range of instructional materials on hand in case they need them. The University of Tennessee's Physics Department has placed a number of these materials online, and this particular resource deals with the course Astronomy 162, which covers stars, galaxies, and cosmology. On the site,...

Created in 1890, the Smithsonian Astrophysical Observatory has a rich history of space science research. Affiliated with Harvard University, the SAO moved from Washington, DC to Cambridge, MA in 1955. Today, the Observatory employs over 300 scientists working on broad programs of astrophysical research supported by federal appropriations and other funding sources. Its divisions include high energy...