| The Nine Planets a multimedia tour of the Solar System | Astronomy Picture of the Day | Phil Plait's Bad Astronomy gives the mainstream version of astronomy | Enterprise Mission an alternaive view of astronomy | Astronomy for Kids | Astronomy Resources from STSci The Space Telescope Science Institute operates the Hubble Space Telescope | Astronomy History a site with many links to the fascinating history of astronomy | Space.com daily news regarding everything in the universe |
| Wikipedia Encyclopedia entry on Astronomy | Universe Today | Cosmology: The Study of the Universe Cosmology is the study of the universe as a whole | Maya Astronomy Page |
| Arecibo Observatory - Operated by the National Astronomy and Ionospher Center, the Arecibo Observatory is the world's largest readio telescope. | Ned Wright's Cosmology Tutorial available in English, Italian, and French | SETI Institute - there is life out there. It's just a matter of finding it. | |