ScienceJune 30, 2026

heliophysics

/ˌhiːliəʊˈfɪzɪks/

Definition

The branch of science that specifically studies the physical processes and phenomena of the Sun and its influence on the solar system, including the space environment near Earth.

Etymology

The word is derived from the Greek 'helios' (sun) and the Greek 'physis' (nature or natural qualities). It entered modern scientific terminology in the late 20th century to encompass the study of solar-terrestrial physics.

In the news

The term is listed in the article's navigation menu as a specific field of scientific inquiry at NASA. It represents the specialized area of research that investigates how the Sun dictates the conditions of the solar system, which relates to the broader planetary and space exploration goals discussed.

Northwest Earth and Space Science Pathways Project Celebrates Student Innovation Through ROADS from Earth to Venus National Challenge

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NASA Science (.gov)

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