The appearance and shape of the corona varies with the sun's activity cycle. The corona is most prominent when the number of sunspots reaches a maximum in the solar cycle. Magnetic field lines within the sun's corona that spread out into space, away from the sun. The result is a region where streams of atomic particles can follow the magnetic field and accelerate into space. These streams are collectively called the solar wind .
Flares emit high-energy atomic particles and all forms of electromagnetic radiation into space.
Gamma rays are emitted from the sun during large eruptions on the solar surface. A unit of magnetic field strength. The earth's magnetic field. A worldwide disturbance in the earth's magnetic field. The aurora is produced when electrons from the sun's solar wind disturb the earth's magnetic field and interact with molecules in the ionosphere.