Jan #13 Vocabulary

United States
January 16, 2018 5:18pm CST
The word is HELIOPAUSE. I wasn't familiar with this word either. What is it? It's the boundary or fringe that separates our solar system from outer space. Greek: Helios (sun) and English: pause
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2 responses
@JudyEv (177672)
• Bunbury, Australia
17 Jan 18
Another one I hadn't heard of.
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@JohnRoberts (94053)
• Los Angeles, California
17 Jan 18
Not exactly an everyday usage word.
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