NASA, Heliophysics Division - Everything the light touches

Heliophysics is an incredibly broad area of space physics covering everything from the Sun to Earth, past all the planets - as well as the spaces in between. It is the science of how energy and material move through space – a field which intersects with fundamental plasma physics, planetary science, astrophysics, and Earth science. NASA's Heliophysics Division supports a wide array of research to study the interconnected system linking the sun to Earth, to the planets, and the particles and magnetic energy coursing through space itself. NASA’s heliophysics strategic objective is to understand the sun and its interactions with Earth and the solar system, including space weather.