A comprehensive collection of links provided by Prof. Kary covering topics in ASTR courses.

A large collection of videos attempting to grasp a little bit about our Universe (many of the topics associated with "Big History")

Products - almanacs, software, and web services - provide precise astronomical data for practical applications, serving the defense, scientific, commercial, and civilian communities.

Allows you to view celestial objects, including stars, constellations, galaxies, planets and the Earth's moon

Interactive planetarium on the Web

Witness the birth of the cosmos, watch the universe unfold, all from your desktop

News, views and information for the global physics community from IOP Publishing

Encyclopedia Astronautica is an online reference source for all things related to space and space flight, including astronauts and cosmonauts, spacecraft, launch vehicles, and data on projects proposed, but not yet completed or projects that were cancelled before completion

PhysLink.com is a comprehensive physics and astronomy online education, research and reference web site. In addition to its search feature, it has good links in its education and reference section

SciShow discusses science news and history and concepts.
With equal parts skepticism and enthusiasm, we go a little deeper...without going off the deep end.