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
The spacecraft is currently beyond the heliosphere, the sun’s bubble of magnetic fields and particles that extends well beyond the orbit of Pluto.
—
Ashley Strickland, CNN Money, 14 May 2025
Carter, who passed away on Sunday at the age of 100, included the message in two golden records attached to the Voyager spacecrafts, which are charting the edge of space outside the heliosphere created by the Sun.
—Riley Beggin, USA TODAY, 31 Dec. 2024
The filling of that bubble is the solar wind, and the bubble itself is known as the heliosphere.
—Monisha Ravisetti, Space.com, 18 Apr. 2025
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
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Ashley Strickland, CNN Money, 14 May 2025
Carter, who passed away on Sunday at the age of 100, included the message in two golden records attached to the Voyager spacecrafts, which are charting the edge of space outside the heliosphere created by the Sun.
—Riley Beggin, USA TODAY, 31 Dec. 2024
The filling of that bubble is the solar wind, and the bubble itself is known as the heliosphere.
—Monisha Ravisetti, Space.com, 18 Apr. 2025
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
See All Example Sentences for heliosphere
Cite this Entry
“Heliosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliosphere. Accessed 3 Jun. 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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