4/7/2024 0 Comments Nasa magnetic fieldIt creates weaker magnetism, causing the charged particles trapped there to come closer to Earth’s surface.Īlthough SAA primarily arises from the core of the Earth, it can potentially have effects beyond the reach of the Earth’s surface. The bulk of the magnetic field, however, comes from the core the forces in the core and the tilt of the magnetic axis together produce the anomaly. The geodynamic processes and evolutions in this magnetic field lead to the SAA and other processes. As the core motion changes, so does the magnetic field. The Earth’s magnetic field originates from the outer core, that is, the molten iron miles below the Earth’s surface and extends into the space. It functions somewhat like a bar magnet: It has north and south poles representing opposing magnetic polarities and magnetic field lines encircling the planet. The Earth’s magnetic field is a protective shield that protects it from charged particles from the sun. The phenomenon is called the South Atlantic Anomaly (SAA). The United States National Aeronautics and Space Administration (NASA) researchers have been tracking an odd development: A dent in the Earth’s magnetic field that may be splitting into half, stretching out between South America and southwest Africa.
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