Most of the atoms in your body left the Milky Way on a 'cosmic conveyor belt' long before you were born, new study reveals

New research suggests that most of the atoms within the human body likely spent part of their lives drifting beyond the Milky Way on a cosmic "conveyor belt," before eventually returning to our galaxy. The UW's Samantha Garza, a doctoral student of astronomy, and Jessica Werk, professor and chair of astronomy, are quoted.

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