December 6, 2021

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Why does the Milky Way have spiral arms? New Gaia data are helping solve the puzzle

6 min read


New data from the star-mapping Gaia satellite are helping scientists unlock the mystery of our Milky Way galaxy’s spiral arms.

Recently published studies exploring the Early Data Release 3 (EDR3), a batch of observations made available to the scientific community last December, reveal the spiral structure of our galaxy with a greater precision and detail than was possible before. 





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