ScienceAugust 31, 2026

heliospheric

hee-lee-oh-SFEER-ik

Definition

Relating to the heliosphere, the vast, bubble-like region of space dominated by the Sun's solar wind and magnetic field.

Etymology

Derived from the Greek 'helios' (sun) and 'sphaira' (sphere). The term was coined in the mid-20th century to describe the extent of the solar wind's influence on the surrounding interstellar space.

In the news

The article uses the term to describe the 'heliospheric current sheet,' a massive, undulating boundary that separates the Sun's opposing magnetic fields as they extend into space. Understanding this structure is essential for tracking how the Sun influences the environment of the solar system.

SwRI Study Unveils Sun's Corona to Solar Wind Shift

Read the full article ↗

Mirage News

Related words

capsid

The protective protein shell that encloses the genetic material of a virus.

Science

heliosphere

The vast, bubble-like region of space surrounding the Sun, filled with solar wind plasma…

Science

phage

A virus that infects and replicates within bacteria.

Science

platypus

A unique, egg-laying, aquatic mammal native to eastern Australia, characterized by a…

Science

diazotrophs

A type of microorganism, such as certain bacteria, that is capable of transforming…

Science

equid

A mammal that belongs to the horse family (Equidae), which includes horses, donkeys, and…

Science

Learn a word like this every day

Meet one new word every morning.

Newspoken pulls one carefully chosen word from the day’s news — with a clear definition, context, and light review that makes it stick. Get it on your phone.