About this item
Did you know the Milky Way galaxy has 200 billion stars? Did you know light takes 100,000 years to travel across our galaxy? Find out more in The Milky Way.
About the Author
Martha E. H. Rustad is the author of one hundred fifty nonfiction children's books, on topics ranging from snowflakes to termites to Ancient Babylon. She lives with her family in Brainerd, Minnesota.
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