magnetosheath
mag-NEE-toh-sheeth
Definition
The region of space located between the bow shock and the magnetopause, where the solar wind plasma is heated and slowed after crossing the bow shock.
Etymology
Derived from the Greek 'magnētis' (magnetic) and the Old English 'scēath' (sheath), representing a protective or surrounding covering for the planet's magnetic environment.
In the news
The article uses the term to describe the physical space where solar wind plasma is transformed before interacting with Earth's magnetic field, highlighting the complexity of tracking solar wind conditions.
For decades, scientists thought Earth’s geomagnetic response would hit a ceiling as solar storms intensified. A NASA-led Nature study published in July 2026 found that apparent limit was probably a measurement artefact: once the uncertainty was corrected,
Read the full article ↗Space Daily