Black Goo, otherwise known as Chemical A0-3959X.91-1, acts as a biological mutagen in the Alien franchise. It was first introduced in 2012's Prometheus ...

The black goo first appeared on a 46-meter (50-yard) patch of asphalt on the highway and continued to grow until it eventually covered roughly 13 kilometers (8 miles), with a thickness of 2.5 ...

Which we don’t believe it is. The film shows the black goo was first able to heal a lab rat which then transformed into a hybrid and died, which is what the substance does in all the other movies.

Since 1986, a strange, black sludge—known to those in Venezuela as “La Mancha Negra”— has terrorized city streets, inspiring many myths and conspiracy theories.