Invisible Universe The Electromagnetic Spectrum from Radio Waves to Gamma Rays Grades 6-8

Developed in partnership with the NASA Swift mission, Invisible Universe introduces students to some of the most awesome astronomical phenomena ever discovered. Students study the electromagnetic spectrum and come to understand how astronomers study the sky by detecting invisible light. Students then learn about the massive and violent waves of radiation in space called gamma-ray bursts. Where do they come from -- massive black holes, colliding galaxies, supernovas . . . ? The Swift mission aims to find out.As with all GEMS guides, Invisible Universe was extensively tested by teachers across the country. It comes with accessible background information for the teacher and clear step-by-step directions.Pompea, Stephen is the author of 'Invisible Universe The Electromagnetic Spectrum from Radio Waves to Gamma Rays Grades 6-8' with ISBN 9780924886690 and ISBN 0924886692.