heliosphere
noun
he·li·o·sphere
ˈhē-lē-ə-ˌsfir 
-ō-
-ō-
: the region in space influenced by the sun or solar wind
Examples of heliosphere in a Sentence
Recent Examples on the Web
But to come to conclusions about the transition between solar corona, the solar wind and the heliosphere, scientists need to isolate extremely faint features within all the solar material — and to isolate those features, there can't be any interference like background stars or zodiacal light.
—
Monisha Ravisetti, Space.com, 18 Apr. 2025
Scientific American senior news reporter Meghan Bartels follows two beloved spacecraft, Voyagers 1 and 2, on their epic tour past the outer planets, across the edge of the sun’s influence (the heliosphere) and into interstellar space.
—Jeanna Bryner, Scientific American, 18 Mar. 2025
Together, the quartet will function as one instrument to make global, 3D observations of the entire inner heliosphere.
—Sharmila Kuthunur, Space.com, 8 Mar. 2025
The Voyager team used data from the instrument to determine exactly when and where Voyager 1 exited the heliosphere and entered interstellar space.
—Ashley Strickland, CNN, 5 Mar. 2025
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Monisha Ravisetti, Space.com, 18 Apr. 2025
Scientific American senior news reporter Meghan Bartels follows two beloved spacecraft, Voyagers 1 and 2, on their epic tour past the outer planets, across the edge of the sun’s influence (the heliosphere) and into interstellar space.
—Jeanna Bryner, Scientific American, 18 Mar. 2025
Together, the quartet will function as one instrument to make global, 3D observations of the entire inner heliosphere.
—Sharmila Kuthunur, Space.com, 8 Mar. 2025
The Voyager team used data from the instrument to determine exactly when and where Voyager 1 exited the heliosphere and entered interstellar space.
—Ashley Strickland, CNN, 5 Mar. 2025
See All Example Sentences for heliosphere
Cite this Entry
“Heliosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliosphere. Accessed 23 Apr. 2025.
Copy CitationKids Definition
heliosphere
noun
he·li·o·sphere
ˈhē-lē-ə-ˌsfir
-ō-
-ō-
: the region of space that is affected by the sun or solar wind
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