Dying stars that are among the most beautiful objects in the universe line up across the night sky, and astronomers aren't sure why. These "cosmic butterflies" all have their own formation histories, but something is making them dance in step.
Dying stars that are among the most beautiful objects in the universe line up across the night sky, and astronomers aren't sure why. These "cosmic butterflies" all have their own formation histories, but something is making them dance in step.
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