Other List Links
There is an ever increasing volume of space related material in the internet. It is impossible to check and list every one. And it would serve only to make it more confusing. If you don't find what you are looking for on my site try one of these links.
Educational Observatory http://www.edu-observatory.org/eo/eo.html
Brian's Space Hot Links http://www.ssl.umd.edu/space/
Astronomy Links http://astronomylinks.com/
Sonoma University Astronomy Links https://sciencesy.com/pages/favorite-astronomy-links
Astronomy Picture of the Day Educational Links http://antwrp.gsfc.nasa.gov/apod/lib/edlinks.html
Astronomy Links & Interesting Sites Beyond Planet Earth http://jrscience.wcp.muohio.edu/html/Astronomy.html
Educational Astronomy Links - CalTech http://www.ipac.caltech.edu/Outreach/Edu/others.html
Astronomical Pseudo-Science: A Skeptic’s Resource List https://www.astrosociety.org/education/astronomy-resource-guides/astronomical-pseudo-science-a-skeptics-resource-list/
Astronomy Resource Guide https://www.astrosociety.org/education/astronomy-resource-guides/
Sky & Telescope Online Resources http://www.skyandtelescope.com/online-resources/
American Astronomical Society Resource List https://aas.org/education/EducatorResources
U of Hawaii resource list http://www.ifa.hawaii.edu/friends/resources.shtml
Sun resources NOAO https://www.noao.edu/outreach/resource/sun.html
And there are many, many more!