In Sky Above, Earth Below, Tyler Nordgren examines a range of astronomical topics and makes the connection between them and the landscapes, processes and cultures which one can see and experience within specific US National Parks. For each park and topic this story unfolds in three steps: what does the reader see for his or herself? What is the scientific cause or explanation of what the reader sees? And finally, what is the big picture about ourselves, our world, or our Universe, towards which understanding of this object or process leads? The author takes us the length and breadth of the US from the coast of Maine to the Rocky Mountains, from the Grand Canyon to Hawaii, exploring these natural links between the features of the parks and features of our Universe. As an example, one chapter will begin by explaining the causes of tides one sees while visiting the Atlantic Ocean along Mainea??s Acadia National Park. Tides are a direct visible example of how planetary bodies affect one...
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