A golden “egg” has been found off the coast of Alaska in the US and has scientists looking for an explanation. The structure was found at a depth of 3 km and appears to have been breached by an animal.

A mysterious object was found at the bottom of the Alaskan Sea – Photo: @ABINASHREECO/R7/Reproduction/ND

Scientists still don’t know for sure what could have come out of the object, and are trying to unravel the mystery.

According to the National Oceanic and Atmospheric Administration (NOAA), the bright object’s tissue is similar to animal skin. Researchers speculate that it could be an eggshell or a sea sponge.

An unknown object was found at a depth of more than 3 km and was compared to the birth of an alien.

“When our collective knowledge cannot identify it, it is strange. What animal could make such an eggshell?” said a member of the team studying the object.

Social media users, fascinated by the golden shell, wondered what kind of object it could be. Speculations range from suggesting it is a “golden shark egg” to considering the possibility of the existence of extraterrestrial material.