ScienceJuly 17, 2026

chromosphere

KROH-muh-sfeer

Definition

The reddish, gaseous layer of the Sun's atmosphere located between the photosphere and the corona.

Etymology

Derived from the Greek word 'chroma' meaning 'color' and 'sphaira' meaning 'sphere' or 'ball'. It was named for its distinct reddish appearance during solar eclipses.

In the news

In the article, researchers observed plasma movement extending into the chromosphere, which helps explain how magnetic fields are linked throughout the Sun's atmosphere.

Scientists uncover hidden solar link that could improve space weather forecasts

Read the full article ↗

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