Universal

a Guide to the Cosmos
Title rated 4.3 out of 5 stars, based on 17 ratings
Current format, Book, 2017, Available now.
Current format, Book, 2017, Available now. Offered in 0 more formats
In this journey of scientific exploration, the authors consider some of the most fundamental questions about our Earth, Sun, and solar system--and the star-filled galaxies beyond. How big is our solar system? How quickly is space expanding? How big is the universe? What is it made of? Some of these questions can be answered…

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