Philadelphia Sinkhole Looks Like It Has Radioactive Ooze In It, But It's Just Fluorescent Dye (PHOTO)

Ninja Turtles fans, relax: It's not retromutagen ooze. Phillies fans, relax: The Phanatic does not have dysentery. Redditors, relax: You can still give user Scooby-Dooo the karma that user Hi_Im_OP took for reposting this photo of a Philadelphia sinkhole's suspicious-looking contents.

Just everyone, relax: This sinkhole, which has reportedly now been boarded over, is filled with water tinged with some fluorescent dyethat official-agency types apparently use to trace water flow. That kind of thing is useful in studying sinkholes, since they can be much larger than they initially seem.

"Or maybe you are ground zero for a government experiment and your neighbors will soon hear thoughts or see short glimpses of the future, and possibly an old grizzled cop, his frail but self-sufficient love interest, and a small boy with learning disabilities will save the day!" Reddit user Shaysdays postulated.