From Stargazers to Starships - Features an easy to use high school level introduction to the basics of astronomy, physics and spaceflight.
Monthly Night Sky Guide - This page, updated monthly, will let you know some of the things that you can look out for in the night sky.
Bad Astronomy - Bad Astronomy deals with misinformation about the night sky, that unfortunately a lot of people believe. Go here for the true story!
Light and Matter - Online physics textbook and other educational material for physics and astronomy.
Socratic Dialogues - Lunar orbital dynamics explained in an easy to understand way.
Astronomy Online - A general astronomy site with over 600 pages of information and resources.
Alaska Science Explained - Learn how to build your very own rocket and discover the mysteries of the Aurora Borealis and remote mapping.
BackyardAstronomy.com - The support website for the Second Edition of the book The Backyard Astronomer's Guide, first published in 1991.
Backyard Astro - Backyard astronomy for amateur astronomers.
Astronomy for Beginners - A site for newcomers to the hobby, as well as information and facts about our solar system and the universe.
Astrocentral - Information on the wonders of the universe.
Astronomy: Stars and Planets - An inventory of space, with information on planets and stars in our galaxy and beyond.
Astro-Tom.com - A great resource for amateur astronomers.
Star Finder - A window on the sky for the casual observer, amateur astronomer, or student.
WEBDA - A site devoted to stellar clusters in the galaxy and the Magellanic Clouds.
Astronomy Pages by James Q. Jacobs - Articles covering astronomy formulas, constants, planetary data, and archeoastronomy.
Hands-On Universe - A student-centered research and K-12 curriculum development program of the Lawrence Hall of Science, at the University of California, Berkeley.
Larry Adkins' Homepage - Astronomy courses and photographs of observatories and planetariums in the United States.
The Living Cosmos - A look at the universe from the microcosm to the macrocosm. Includes excerpts and discussions from the books "The Vital Vastness" and "In Defense of Nature".
Fractal Universe - The website points out the inadequacies in the Big Bang theory and proposes a rotating fractal universe hypothesis.
Space Talks - Astronomy workshops for Key Stages 1 and 2 with Caroline Beevis.
Shade Tree Physics - Articles on Newtonian physics applied to astronomy and cosmology.
MinorPlanet.org - Site dedicated to astronomical imaging and positional data.
Nova Celestia - Astronomical illustrations and space art.
Photography and Astronomy Information Guide - Articles and information for the amateur astronomer.
David A. Hardy's AstroArt Pages - Paintings and illustrations of all types of astronomical objects, from asteroids to exoplanets.
Astronomy Jokes and Space Explorers - A collection of space and astronomy jokes with astronomy factoids, quizzes, quotes, links and pictures interspersed throughout the site.
The Extraterrestrial Sermons - A study of how the reception of extraterrestrial transmissions might affect world religions.
Astro Day - Information about Astronomy Day, celebrated every year sometime between mid April and mid May on a Saturday near or before the 1st quarter Moon.
AstroHobby.com - Dale Dellutri's amateur astronomy services.
Bob the Alien's Tour of the Solar System - Information about the solar system and the deep space.