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Cell division process conceptual illustration,lab scientist holding ampoule vial with cell nucleus molecules splitting,DNA replication procedure,mitosis daughter from parent chromosome cell production
Comet 3I ATLAS captured in Leo constellation on December 28, 2025, at 03:50 AM. Long exposure astrophotography showing comet nucleus and tail against a starry deep space background
Dried litchi fruit from Fujian showing brown textured shell and reddish-brown flesh with small nucleus, exotic Asian tropical fruit snack on natural background
Dried lychee fruit from Fujian Putian region on white background, osmanthus flavored small nucleus variety, traditional Chinese delicacy with textured brown skin
Parkinsons GPe STN weak indirect pathway comparison showing reduced inhibitory projection to subthalamic nucleus versus healthy brain on blue background

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