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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 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 like Earth... (View More)

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)

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

In this activity, students solve exponential equations where the unknown is contained in the exponent. Students learn that taking base-10 or base-2 logs pulls down the exponent, allowing the unknown to be isolated and solved.  This activity is... (View More)

In this activity students convert antilogs to logs, and logs to antilogs using scientific notation as an intermediate step. They will thereby develop a look-up table for solving math problems by using logarithms. This is activity D2 in the "Far Out... (View More)

In this activity, students construct base-two slide rules that add and subtract base-2 exponents (log distances), in order to multiply and divide corresponding powers of two. Students use these slide rules to generate both log and antilog equations,... (View More)