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The Global Telescope Network (GTN) is an informal association of scientists, students, individuals and observatories interested in supporting the NASA Fermi Gamma-ray Space Telescope (formerly GLAST), Swift, and XMM-Newton missions by obtaining and... (View More)

Audience: Informal education

This Hubble Space Telescope image reveals new details of the Cat's Eye Nebula, one of the most complex planetary nebulae ever seen. A planetary nebula is the glowing gas ejected by a star similar in mass to our Sun, during its final stages of... (View More)

This Hubble Space Telescope image shows a tightly packed crowd of stars resembling a swarm of bees. Called M80 (NGC 6093), the stellar swarm is one of the densest globular clusters in our Milky Way Galaxy. M80 contains hundreds of thousands of... (View More)

Audience: High school, Informal education
Materials Cost: Free

This image from the Hubble Space Telescope shows light from hot stars eating away the surface of the dust and gas cloud in this region of the Eagle Nebula to reveal a pillar composed of denser material. The text includes information about the... (View More)

Audience: High school, Informal education
Materials Cost: Free

This is a companion book to the Traditions of the Sun web site. Learners can use the book to learn about the Sun's dynamic nature, explore images from NASA's cutting-edge solar missions and understand more fully the human connection we all have to... (View More)

This online activity introduces the importance of meteorites to the understanding of the origin of the Solar System. Learners will use a key to determine if samples are meteorites. Finding meteorites can be difficult because most meteorites look... (View More)

The Gamma-ray Burst Skymap website automatically updates for each gamma-ray burst as it occurs, whether detected by Swift or other orbiting satellites. For each burst, the location on the sky, star map, constellation and detecting mission are... (View More)

Audience: Informal education

This is a storybook about the Sun. Learners will read or hear about the Sun, its relationship to Earth, and how the Sun can affect Earth.

This is a lithograph about a scientific observation by the Reuven Ramaty High Energy Solar Spectroscopic Imager, or RHESSI, spacecraft. Learners will read about a chance observation of a gamma-ray burst in 2002 that has shed new light on the... (View More)

This 2-page color fact sheet briefly describes NASA's Kepler mission, its instruments, and ground system. Also included are tables listing the instrument parameters and the major institutions involved. Kepler is a spaceborne telescope specifically... (View More)

Audience: Informal education