Mystery Golden Orb From Ocean Floor Finally Identified

After years of head-scratching, marine scientists have cracked the case of the shiny golden orb that stumped experts when it was plucked from the ocean floor in 2023.

When researchers on the National Oceanic and Atmospheric Administration's expedition spotted the smooth, softball-sized object stuck to a rock 2 miles beneath the Pacific's surface, nobody knew what they were looking at. The team used a remotely operated vehicle to carefully suction it up and bring it aboard their ship, the Okeanos Explorer.

"Everyone was like, 'What the heck? What is that?'" said Allen Collins, a zoologist at the Smithsonian National Museum of Natural History. The theories flew fast: an egg, a sponge, maybe even a clump of microbes.

The team started with basic anatomy, searching for telltale signs like a mouth or muscles. Nothing. So they turned to microscopes and discovered something key: the tissue contained special stinging cells called spirocysts, found only in sea anemones and their cousins.

Genetic testing revealed DNA from a mysterious anemone-like organism called Relicanthus daphneae. That's when Estefanía Rodríguez, who had spent years studying this rare creature, recognized what everyone was actually looking at.

Why This Inspires

The golden orb wasn't a creature at all. It was something the deep-sea anemone secretes beneath itself to cement onto rocks, like an underwater anchor. When the anemone wants to relocate to find better conditions, it simply detaches and leaves its golden mooring behind.

Scientists have even spotted video footage showing trails of these golden remnants along rocks where anemones appear to have traveled across the ocean floor. It's like finding breadcrumbs from a creature barely anyone has ever seen.

The discovery highlights how much we still don't know about our oceans, even as technology lets us explore deeper than ever before. Tammy Horton, a deep-sea expert who wasn't involved in the study, called it a wonderful demonstration of why both DNA testing and physical samples matter for understanding mysterious marine life.

Jon Copley, a marine ecologist at the University of Southampton, summed it up perfectly: "As is often the case in the deep sea, it's a surprise."

The team's detective work turned an oddball mystery into a window on how some of Earth's least-known creatures live their lives in total darkness, adapting in ways we're only beginning to understand.