This educators guide provides content and classroom activities about galaxies, galaxy morphology, x-ray properties of galaxies, and evidence for dark matter in galaxies. The classroom activities have been designed to be...
Of the 100 billion or more galaxies visible through existing telescopes, most are either spiral or elliptical in shape and about one-fourth are irregular in shape. In addition to their shape, star systems can be further...
This lesson plan from NASA's Goddard Space Flight Center presents materials on the sombrero galaxy. In the lesson, students make comparisons, conduct research, organize their materials, and present a report describing...
This collection of nine trading cards focuses on the three types of galaxies: spiral, elliptical, and irregular. Each card displays a color image of a galaxy on one side and describes the galaxy's type, its location...
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