The Domain of Space Physics
The Sun
Its sources of energy and variability, its influence on Earth, and its
role as the dominant source of energy in the solar system.
Solar-Terrestrial and Solar-Planetary Relations
The influence of energetic solar radiation and the solar wind on the
magnetospheres and upper atmospheres of the Earth and the other planets.
The Heliosphere
Its nature, dynamics, and contents, extending from the Sun to the outer
frontiers of the solar system.
Cosmic Rays
The origin, acceleration, and propagation of solar and galactic cosmic
rays in the heliosphere and galaxy.
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representation of the figure at the top of the page.
Solar Connections: A Science Initiative for NASA Space Physics
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