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can i take ambien with high blood pressure The Swarm mission utilises three satellites each having an identical suite of six instruments. The trio of satellites will measure magnetic signals from the Earth's core, mantle, crust, oceans, ionosphere and magnetosphere. The data collected by the Swarm satellites will provide new insights into a range of phenomena about the magnetic field which surrounds the Earth and shields it from the harmful effects of solar storms, cosmic rays and charged particles that bombard the planet. Strong solar storms have caused power and communication blackouts, and damaged satellites on orbit. Without Earth's protective magnetic shield, the development of life would likely have been impossible. Evidence points to a weakening of the planet's magnetic shield and the Swarm mission will enable scientists to understand the causes.