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How do spiral galaxies get 'feathers'? All it takes is a little gravity
For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies, which feature arms covered in a multitude of small-scale features known as feathers.
For over a century, astronomers have marveled at the beauty and complexity of spiral galaxies, which feature arms covered in a multitude of small-scale features known as feathers.
