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The key findings of the article what have astronomers learned that they did not know before?

Answer these questions based off of this article:
https://www.sciencedaily.com/releases/2019/06/190611102721.htm

1. The key findings of the article what have astronomers learned that they did not know before?
2. What instrumentation was used to make this discovery and how it works (use concepts from
lecture to explain this), and
3. How does this finding relate to what we know about the Sun, the Milky Way Galaxy, or other
stars or galaxies?