Nikon has announced the winners of the Small World Photomicrography Competition for 2023. I've included a few of my favorites above. From the top:

• The optic nerves of a rodent by Hassanain Qambari & Jayden Dickson.
• A heart shape is visible amongst breast cancer cells shot by Malgorzata Lisowska.
• Sunflower pollen on an acupuncture needle by John-Oliver Dum.

And I love a good slime mold photo too. (via ars technica)

• best of
• best of 2023
• photography