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In this this thrilling entry into The Scientists in the Field series, follow scientists as they search for dangerous asteroids in space, study asteroids that have crashed into the ground, and strive to prevent an asteroid strike if one ever threatens our planet.Asteroids bombard our atmosphere all the time. Some are harmless, burning up in a flash of light. But others explode with a great sonic boom, smashing windows and throwing people to the ground. Worst of all, some asteroids strike our planet, blasting out massive craters and destroying everything nearby on impact.Follow the award-winning author Elizabeth Rusch into the field with scientists as they search for dangerous asteroids in space, study asteroids that have smashed into the ground, and make plans to prevent an asteroid strike if one ever threatens our planet.

In this addition to the critically acclaimed Scientist in the Field series, scientist Robin Tanamachi and her team are trying to save countless lives across America's heartland, chasing one tornado at a time.Robin Tanamachi has been captivated by tornadoes and extreme weather her entire life. When she realized people researched weather for a job, she was hooked.She now studies tornadogenesis, or how tornadoes form, and what causes them to get weaker versus strengthen. For her, driving around in a Doppler radar truck aiming towards storms is a normal day in the office. The data she collects is then modeled and studied on computers?with math, physics, and computer science working hand in hand with meteorology.At the end of the day, knowing exactly how, when, and where these violent storms happen can give more warning time for everyone involved.