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Overview:
Growing up at a time when the Hubble Space Telescope orbits above our heads and giant telescopes are springing up on the great mountaintops of the world, you may be surprised to learn that we were not sure about the existence of other galaxies for a very long time. The very idea that other galaxies exist used to be controversial. Even into the 1920s, many astronomers thought the Milky Way encompassed all that exists in the universe. The evidence found in 1924 that meant our Galaxy is not alone was one of the great scientific discoveries of the twentieth century.---------------------------------------Distant Nature: Astronomy Exercises 2016 by Stephen Tuttle under license "Creative Commons Attribution Non-Commercial Share Alike".
Subject:
Astronomy
Level:
Community College / Lower Division, College / Upper Division
Material Type:
Activity/Lab
Author:
Date Added:
05/17/2022
License:
Creative Commons Attribution Creative Commons Attribution
Language:
English
Media Format:
Graphics/Photos, Text/HTML

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