This Web site contains information for both partners (those with their own telescopes) and associates (those who wish to use a network telescope.) The purpose of the Global Telescope Network (GTN) is to use small telescopes to obtain ground-based observations of high-energy objects of interest to Swift, GLAST (renamed Fermi in 2008) and XMM-Newton missions. It is used both by formal educators working ... Full description.

This lithograph contains a Hubble Space Telescope image of galaxies that appear to form the number 10. The text describes the image and provides a brief explanation of why astronomer Halton Arp compiled his catalogue of odd-looking galaxies in the 1960s. The accompanying classroom activity In Search of ? Peculiar Galaxies is a curriculum support tool designed for use as an introductory inquiry activity. ... Full description.

In this activity, students will observe the surface of rotating potatoes to help them understand how astronomers can sometimes determine the shape of asteroids from variations in reflective brightness. When astronomers graph data relating to reflective brightness as a function of time, the resulting graph is called a "light curve." Full description.

This product illustrates how scientists learn about the composition of an asteroid by studying energy and neutrons that emanate from it. The Dawn spacecraft contains three instruments -- the Gamma Ray and Neutro Detector (GRaND), the Visible Infrared Spectrometer, and the Framing Camera -- that will provide answers to questions about the formation and evolution of the early solar system. Full description.

This lithograph features Hubble Space Telescope images and includes text that describes and explains the images. There is also an accompanying inquiry-based classroom activity entitled ?In Search of the Complex Structures of Planetary Nebulae.? This activity is designed to encourage the development of research skills and independent thinking. Available online as well as hardcopy. Educators can access ... Full description.

This lithograph features Hubble Space Telescope images and includes text that describes and explains the images. There is also an accompanying inquiry-based classroom activity entitled ?In Search of Star Clusters.? This activity is designed to encourage the development of research skills and independent thinking. Available online as well as hardcopy. Educators can access the lithograph PDF files on ... Full description.

This lithograph features Hubble Space Telescope images and includes text that describes and explains the images. There is also an accompanying inquiry-based classroom activity entitled ?In Search of Star Formation.? This activity is designed to encourage the development of research skills and independent thinking. Available online as well as hardcopy. Educators can access the lithograph PDF files ... Full description.

This lithograph shows the deepest visible light observation of the early universe. In contrast to the image?s harvest of classic spiral and elliptical galaxies, there are a number of oddball galaxies littering the field. Some look like toothpicks; others like links on a bracelet. A few appear to be interacting. The information contained in the text can be used to introduce the idea that galaxies evolve ... Full description.

This kinesthetic science activity reintroduces participants to three states of matter (solid, liquid, gas), and introduces them to a fourth state of matter, plasma, and its connection to the Sun. It also demonstrates how the addition of energy can transform matter from one state to another. The activity reviews common examples of matter in each state, like liquid water and water ice, oxygen and carbon ... Full description.

This lithograph contains a Hubble Space Telescope image that shows the colorful Planetary Nebula NGC 2440 with one of the hottest known white dwarfs at its center. The text briefly explains the process of stellar death of sun-like stars and those with a mass greater than eight times the Sun. The accompanying classroom activity is a curriculum support tool designed for use as an introductory inquiry ... Full description.