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Description
For centuries, it was assumed that our universe was static. In the late 1920s, astronomers defeated this assumption with a startling new discovery. From Earth, the light of distant galaxies appeared to be red, meaning that those galaxies were receding from us. This led to the revolutionary... read more
First Sentence
IN THE TIME IT TAKES to read this sentence, the Earth will glide 200 miles in its orbit around the sun, the sun 3,000 miles of additional space will have opened up because our galaxy and those of the Hydra cluster as the universe goes on expanding.
Table of Contents
Authors & Contributors
- Timothy Ferris (Author)
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