Nine Planets
Nine Planets: The Web Nebulae
This site from Nine Planets provides introductory material about nebulae, information and images of several types of nebulae, information on Edwin Hubble, and additional related sites are provided.
University of Illinois
University of Illinois: Stars and Constellations: Neutron Stars and Pulsars
This resource provides a brief description of the relationship between a neutron star and a pulsar. It details the pulsing rate and death of a pulsar.
University of Illinois
University of Illinois: Stars and Constellations
A large collection of information about and photos of the starts and constellations in the sky.
Wolfram Research
Wolfram Science World: Copernicus, Nicolaus (1473 1543)
A biography of Nicolaus Copernicus and his contribution to science, specifically astronomy.
University of Missouri
Famous Trials: Trial of Galileo Galilei
This chronicles Galileo's trial for supporting and proving the Copernican view of the solar system. A chronology, biographical information on key figures and pertinent historical documents are available.
Texas Instruments
Texas Instruments: Solar System
This activity is designed to assess the comprehension of concepts related to the planets and other astronomical bodies in the Solar System.
Texas Instruments
Texas Instruments: Space Exploration Time Line
This site provides a time line of the history of space exploration.
Ministerio de Educación (Spain)
Ministerio De Educacion: Introduccion Modulo 0
Observe different stars and measure its relative position utilizing the Virtual Astronomical Observatory.
Ministerio de Educación (Spain)
Ministerio De Educacion: Atronomia Esferica Modulo I Unidad 1
Recognize the major constellations and learn about the sky during the different seasons of the year. You will also be able to measure the height of the mountains of the moon.
Ministerio de Educación (Spain)
Ministerio De Educacion: Instrumentacion Astronomica Modulo I Unidad 2
In this unit you will combine all the major components of a telescope to obtain the desired system for different types of astronomical observations.
Ministerio de Educación (Spain)
Ministerio De Educacion: Instrumentos Auxiliaries Modulo I Unidad 3
In this unit you will learn the main advantages and disadvantages offered by the refractor and reflector telescopes for a particular observation. You will also learn about the main types of telescopes.
Ministerio de Educación (Spain)
Ministerio De Educacion: Diagrama H R Modulo Ii Unidad 3
In this unit you will study the different types of luminosity, the effective temperature of the stars and the Hertzsprung-Russell diagram.
Ministerio de Educación (Spain)
Ministerio De Educacion: Espectros Estelares Modulo Ii Unidad 2
In this module you will study the composition of stars. You also will be able to classify them through the virtual observatory.
Ministerio de Educación (Spain)
Ministerio De Educacion: Evolucion Estelar Modulo Iii Unidad 1
In this module you will study the birth, life and death of stars.
Ministerio de Educación (Spain)
Ministerio De Educacion: Fases Finales De La Estrellas Modulo Iii Unidad 2
In this unit you will learn about the final stages of the life of massive stars.
Ministerio de Educación (Spain)
Ministerio De Educacion: Fuentes De Energia Estelar Modulo Iii Unidad 3
In this unit you will learn about stellar energy sources .
Ministerio de Educación (Spain)
Ministerio De Educacion: Medio Interestelar Modulo Vi Unidad 1
In this module you will learn about the interstellar extinction and study about the different types of nebulae and supernova.
Ministerio de Educación (Spain)
Ministerio De Educacion: Cuasares Y Otras Galaxias Activas Modulo Vii Unit 3
In this module you can learn about the active galaxies, quasars and the effect of the gravitational lens.
Ministerio de Educación (Spain)
Ministerio De Educacion: Las Galaxias Modulo Vii Unidad 2
In this module you can learn about galaxies, their morphology classification, masses, distances, etc.
Ministerio de Educación (Spain)
Ministerio De Educacion: Una Estrella Llamada Sol Modulo Iv Unidad 1
In this module you will study the structure and composition of the star closest to us: the Sun.
Ministerio de Educación (Spain)
Ministerio De Educacion: El Sol Activo Modulo Iv Unidad 2
In this module you will learn about the solar cycle and study the possible influence of solar cycles on the Earth's climate.
Ministerio de Educación (Spain)
Ministerio De Educacion: Estrellas Binarias Modulo v Unidad 1
In this module you will learn the different types of binary stars.
Ministerio de Educación (Spain)
Ministerio De Educacion: Estrellas Variables Modulo v Unidad 3
In this module you will learn about variable stars. Here you will find a large gallery of images.