Spiral Arms.

News Items/John Ellis

Mar 30, 2020

∙ Paid

1. Astronomers know surprisingly little about the structure of our Milky Way galaxy, including the number of spiral arms it has and the location of our sun within it. Recently, though, scientists have pieced together the best map yet of our galaxy by using data from several new research projects, particularly the Bar and Spiral Structure Legacy (BeSSeL)…

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