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Like everything else in our solar system, Earth is constantly buffeted by the solar wind, a stream of high-energy particles from the sun. Life can only thrive in the Earth's protective bubble provided by its atmosphere and magnetic field. (Credits: NASA’s Goddard Space Flight Center/Scientific Visualization Studio/Greg Shirah) Like everything else in our solar system, Earth is constantly buffeted by the solar wind, a stream of high-energy particles from the sun. Life can only thrive in the Earth's protective bubble provided by its atmosphere and magnetic field.