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
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Voyager 1 left the heliosphere and reached interstellar space in August 2012 and is 15.5 billion miles away, and Voyager 2 − traveling slower and in a different direction − did the same in November 2018 and is now roughly 13 billion miles from Earth.
—
Stephen J. Beard, USA TODAY, 9 Jan. 2025
Carter 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.
—John Bacon, USA TODAY, 31 Dec. 2024
Three cups are pointed towards the Sun to record solar wind while inside the heliosphere, while the fourth is positioned at a right angle to the others to capture information on various planetary magnetospheres, the heliosphere, and interstellar space.
—Andrew Paul, Popular Science, 2 Oct. 2024
Join 1 other in the comments View Comments The probe was the first spacecraft to cross the heliosphere — the sun’s bubble of magnetic fields and particles that extends beyond planetary orbits — and venture into interstellar space, or space between stars.
—Katie Hunt, CNN, 21 Sep. 2024
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Stephen J. Beard, USA TODAY, 9 Jan. 2025
Carter 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.
—John Bacon, USA TODAY, 31 Dec. 2024
Three cups are pointed towards the Sun to record solar wind while inside the heliosphere, while the fourth is positioned at a right angle to the others to capture information on various planetary magnetospheres, the heliosphere, and interstellar space.
—Andrew Paul, Popular Science, 2 Oct. 2024
Join 1 other in the comments View Comments The probe was the first spacecraft to cross the heliosphere — the sun’s bubble of magnetic fields and particles that extends beyond planetary orbits — and venture into interstellar space, or space between stars.
—Katie Hunt, CNN, 21 Sep. 2024
See all Example Sentences for heliosphere
Dictionary Entries Near heliosphere
Cite this Entry
“Heliosphere.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/heliosphere. Accessed 22 Jan. 2025.
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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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