I asked my girlfriend about this crazy image I saw on her desktop. (above)
She said “These are mesenchymal stem cells that have gone through a differentiation process to change them into adipocytes, or fat cells. The red is a stain called Oil Red O that is used to confirm that the cells, in fact, have differentiated into adipocytes.”
So basically, the red bubbles are fat. Isn’t it weird that they look exactly like you would imagine them to?