How spiral galaxies work: the spiral arms are not made up of a fixed set of stars (left), instead they are an ever-changing region of high density where stars constantly move in an out (right)

Name: How spiral galaxies work: the spiral arms are not made up of a fixed set of stars (left), instead they are an ever-changing region of high density where stars constantly move in an out (right)
Uploaded: 2023-08-22T21:51:37.000Z
Duration: 15 s
Channel: educationalgifs
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