The ocean has always had a way of igniting the imagination. Sailors once believed sea monsters lurked beneath dark waves. Today, we have remotely operated vehicles and high-resolution cameras exploring the deep. Yet every so often, the ocean still delivers a discovery that feels almost mythic.
In August 2023, scientists aboard a research vessel discovered something strange while exploring the seafloor of the Gulf of Alaska. A small golden dome, smooth and glowing under the bright lights of a robotic submersible, sat attached to a rock nearly two miles below the surface. The object looked like something out of science fiction.
Adventure starts with a click—sign up for our newsletter for travel tips and stories.
A Strange Discovery in the Deep Sea
The mysterious object was first spotted on August 30, 2023, during the Seascape Alaska expedition led by the National Oceanic and Atmospheric Administration. Scientists were using a remotely operated vehicle called “Deep Discoverer” to map deep ocean habitats when the cameras captured an unusual sight on a rocky outcrop roughly 3,300 meters below the ocean surface.
The object was about four inches across, dome-shaped, and had a shimmering golden color that stood out against the dark seafloor. Even stranger, it appeared to have a small hole in one side, which made scientists wonder if something had entered or emerged from it.
During the livestream of the expedition, researchers openly debated what it could be. Early guesses ranged from a sponge attachment to coral or even an egg casing from an unknown deep-sea animal. At the time, NOAA scientists could only confirm one thing with certainty. The orb was biological in origin, meaning it came from a living organism.
Eventually, the submersible’s robotic arm gently removed the object using a suction sampler so it could be studied back on the research ship. The true detective work had just begun.
Years of Investigation Reveal the Truth
For nearly three years, the golden orb remained an ocean mystery. Initial DNA testing provided only vague clues, and scientists could not immediately link the sample to any known marine species.
The breakthrough came after more advanced genetic sequencing. Scientists eventually discovered that the orb was not an egg or a new species. Instead, it was a piece of tissue from a rare deep-sea creature called Relicanthus daphneae, a giant sea anemone species that lives in extreme ocean depths.
Related: Construction Crew Makes a 300-Year-Old Discovery While Excavating in Historic U.K. City
The golden structure appears to have formed from dead cells at the base of the anemone, which attach the animal to the rock surface on the ocean floor. When the anemone moved or shed tissue, the remaining mass stayed behind, creating the smooth golden blob that puzzled scientists, according to Alaska News Source. Relicanthus daphneae is itself a remarkable organism. This deep-sea anemone can grow tentacles more than two meters long, drifting in dark waters where sunlight never reaches, per Science Alert.
Why the Deep Ocean Still Feels Like an Alien World
To travelers who love the ocean, discoveries like this highlight just how mysterious the deep sea remains. The environment where the orb was found is incredibly extreme. At depths beyond about 1,000 meters, sunlight disappears entirely. The water temperature drops to around 4°C (39°F), and the pressure can exceed 100 times the pressure at Earth’s surface.
For those of us who explore coastlines or sail along open water, it is easy to forget that beneath the surface lies an environment more mysterious than many places on land. In fact, large portions of the ocean floor remain unmapped and unexplored.
When I first watched footage of the golden orb discovery, I remember thinking it looked cinematic. The glowing object sitting quietly on the seafloor almost resembled a lost treasure. But the real story turned out to be far more interesting.
Stay in the loop with fresh travel stories and updates—subscribe to our newsletter.
What Travelers Can Learn from the Golden Orb
For travelers who love the ocean, this discovery offers a quiet reminder. Standing on a beach or sailing across open water often feels like a complete experience. Yet beneath those waves lies a world we are only beginning to understand. The deep ocean remains one of the least explored environments on Earth.
The golden orb mystery shows how exploration continues to reshape our understanding of the planet. Even with satellites, robotics, and advanced genetics, the ocean still surprises us. Every coastline hides stories beneath the waterline. Sometimes those stories take the form of a glowing golden orb resting silently two miles below the sea.
This story was originally published by Parade on Apr 23, 2026, where it first appeared in the News section. Add Parade as a Preferred Source by clicking here.