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"Asteroids come in all shapes and sizes--and hit our planet in them, too. But what happens if a catastrophically large one approaches earth? By looking on the ground at historical asteroid craters and present-day falls, and up into space for the big ones yet to come, a wide variety of scientists are trying to figure out how to track asteroids--and how to avoid devastating impacts in the future."--
Author
Description
"What happened to the dinosaurs that once roamed Earth? Could they have been extinguished by an explosion or perhaps by a meteor? Through colorful images and accessible language, readers will explore the drastic events that forever changed life on Earth nearly seventy million years ago, learn more about the debris that's been falling to Earth for billions of years, and be introduced to the way Earth interacts with other objects in the solar system....