magnetosphere
noun
mag·ne·to·sphere
mag-ˈnē-tə-ˌsfir 
-ˈne-
: a region of space surrounding a celestial object (such as a planet or star) that is dominated by the object's magnetic field so that charged particles are trapped in it
Examples of magnetosphere in a Sentence
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The solar wind smashes into the leading edge of Earth’s magnetosphere with supersonic speed, creating a shockwave that can come closer than one hundred thousand kilometers to the planet’s illuminated side.
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Literary Hub, 27 Oct. 2025
The most volcanically active body in the solar system, Io ejects material that is then swept into space by Jupiter’s magnetosphere at a rate of roughly a ton per second.
—Nola Taylor Tillman, Scientific American, 13 Oct. 2025
The magnetosphere shields us from the Sun’s solar wind and solar storms, acting like a force field to keep living things safe from the energetic particles released by the Sun.
—Samuel Badman, The Conversation, 6 Oct. 2025
Juno's latest extension broadened its mission from studying Jupiter's interior and magnetosphere to include the planet's rings and observations of its large moons.
—Josh Dinner, Space.com, 6 Oct. 2025
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Literary Hub, 27 Oct. 2025
The most volcanically active body in the solar system, Io ejects material that is then swept into space by Jupiter’s magnetosphere at a rate of roughly a ton per second.
—Nola Taylor Tillman, Scientific American, 13 Oct. 2025
The magnetosphere shields us from the Sun’s solar wind and solar storms, acting like a force field to keep living things safe from the energetic particles released by the Sun.
—Samuel Badman, The Conversation, 6 Oct. 2025
Juno's latest extension broadened its mission from studying Jupiter's interior and magnetosphere to include the planet's rings and observations of its large moons.
—Josh Dinner, Space.com, 6 Oct. 2025
See All Example Sentences for magnetosphere
Cite this Entry
“Magnetosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/magnetosphere. Accessed 30 Oct. 2025.
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magnetosphere
noun
mag·ne·to·sphere
mag-ˈnēt-ə-ˌsfi(ə)r
-ˈnet-
: a region of space around an object (as a planet or star) that is dominated by the object's magnetic field
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