| Tamaño actual del derrame de petroleo en el Golfo de México |
| Diccionario McMillan (Inglés) |
| Últimas tendencias en tecnología |
| Google Sky Maps |
| Google Moon Maps |
| Google Mars Maps |
| Google Maps |
| Conversión entre sistemas de unidades |
| Space.com |
| Sloan Digital Sky Survey (SDSS) |
| NASA Extragalactic Database (NED) |
| The SAO/NASA Astrophysics Data System (NADS) |
| European Southern Observatory (ESO) |
| Astro-ph |
| CNN International |
| National Radio Astronomy Observatory |
| The Hubble Heritage Project |
| Hubble Site |
| Instituto de Astronomía de la UNAM |
| Observatorio Astronómico Nacional (OAN) |
| Canada-France-Hawaii Telescope |
| A Knowledgebase for Extragalactic Astronomy and Cosmology |
| The Aladin Sky Atlas |
| Guía Roji |
| Unysis Weather Satellite Images |
| Gemini Observatory |
| Instituto de Astrofísica de Canarias (IAC) |
| World Time Zone |
| Linux for Astronomy |
| The electronic Universe |
| Fase Actual de la Luna |
| Universe Education Materials |
| SIMBAD Astronomical Database |
| SEDS The Messier Database |
| Open Astronomy curses |
| Einstein archives online |
| Caos y Ciencia |
| Celestia |
| Stellarium |
| Sky & Telescope |
| Physics World |
| PlanetQuest: Exoplanets Exploration |
| Nikon: The scale of the Universe |
| Millennium Simulation of the Universe |
| Hayden Planetarium |
| |
Preparación académica 
