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 mission's data will also help scientists map the outer boundary of the heliosphere, the vast bubble around our solar system that's dominated by the sun's solar wind and magnetic field.
—
Mike Wall, Space.com, 24 Sep. 2025
The Sun's movement through the Milky Way galaxy forms a shock wave on the front side of the heliosphere, similar to the wave created by the bow of a ship moving through water.
—Kyle Orland, ArsTechnica, 24 Sep. 2025
The information collected by these probes is helping scientists learn about the heliosphere’s cometlike shape.
—Ashley Strickland, CNN Money, 24 Sep. 2025
By tracking the origins of incoming energetic neutral atoms, IMAP will build a map of the heliosphere.
—Ryan French, The Conversation, 24 Sep. 2025
See All Example Sentences for heliosphere
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Mike Wall, Space.com, 24 Sep. 2025
The Sun's movement through the Milky Way galaxy forms a shock wave on the front side of the heliosphere, similar to the wave created by the bow of a ship moving through water.
—Kyle Orland, ArsTechnica, 24 Sep. 2025
The information collected by these probes is helping scientists learn about the heliosphere’s cometlike shape.
—Ashley Strickland, CNN Money, 24 Sep. 2025
By tracking the origins of incoming energetic neutral atoms, IMAP will build a map of the heliosphere.
—Ryan French, The Conversation, 24 Sep. 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 30 Oct. 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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