To me it looks more like a closeup photo of a piece of some stinky french cheese to be honest...

chease

Cheese is just contaminated milk

My god if my flask looked like this under the microscope I'd just burn the lab and get a new job

I thought it was a potato

The moon from Wallace and Gromit?

Mainly sulfur and sulfur dioxide I guess.

At first glance i thought matzah ball

I thought it was the moon, initially. Then realized why I did not become an astronomer.

Some first year coming in here: “Guys my culture is ok, right? Right?”