The Interstellar Medium: An
Online Tutorial - The University of New Hampshire's
Experimental Space Plasma Group -
(http://www-ssg.sr.unh.edu/tof/Outreach/Interstellar/who.html)
The Interstellar Medium
- University of Texas -
(http://csep10.phys.utk.edu/astr162/lect/milkyway/ism.html)
- Rice University -
(http://web.archive.org/web/*/http://spacsun.rice.edu/~twg/pc120.html)
The Local Bubble and the Galactic Neighborhood - APOD -
(http://antwrp.gsfc.nasa.gov/apod/ap020217.html)
The Galactic Environment of the Sun - American
Scientist -
(http://www.americanscientist.org/template/AssetDetail/assetid/21173;jsessionid=baahGCykSxJeMC?fulltext=true )
Gas Attack - The Why Files -
(http://whyfiles.org/017planet/gas_cloud2.html)