A lot of unexplained metal artifacts found all over the world, without being able to explain their origin the modern scientists feel thoroughly baffled.

Are these unknown metal objects proof that we have been visited by otherworldly beings? Or may be extraterrestrials teach our ancestors secrets of metallurgy that we are just now beginning to develop and reproduce?

Perhaps by examining these strange metal objects, we may begin to understand our past, let’s have a look at 5 of the most bizarre metal artifacts ever discovered.

1 – 250,000-Year-Old Piece of Aluminum

A chunk of aluminum is on display at the National Museum of Transylvanian History in Cluj-Napoca, Romania.

Lab tests concluded it is an old UFO fragment given that the substances it comprises cannot be combined with technology available on Earth.

The piece measures 20 cm (7.8 in) by 12.5 cm (4.9 in) by 7 cm (2.8 in) and looks like something one might dig up while excavating to put in a foundation for a building. The details of the discovery were never made public at the time because it was pulled out of the earth in communist Romania in 1973.

According to tests, the object is made of 12 metals, 90% aluminium, and it was dated by Romanian officials as being 250,000 years old. The initial results were later confirmed by a lab in Lausanne, Switzerland.

Conspiracy theorists suggest object is actually part of a UFO and proof of visitation by an alien civilisation in the past.

2 – Ulfberht Sword

Dozens of these swords—made with metal so strong and pure it’s baffling how any sword maker of that time could have accomplished it—have been found in Europe, along with some knock-offs. They are all marked with the Ulfberht name and two crosses, though some of the imitations are missing a letter here or there.

One of three Ulfberht swords found in the territory of the Volga Bulgars. Its hilt (classified as Petersen type T-2) is decorated with three lines of round holes inlaid with twisted silver wire

The Ulfberht sword was made of steel which has a carbon content of up to 3 times more than the average medieval steel. Today, it is the same material used years ago, that is called crucible steel. According the age of the sword the making of crucible steel has started in the medieval era. It is indeed surprising that how this happened. Crucible steel was not around in Europe until the Industrial revolution which took place in the 18th century.

3 – The Mythical Lost Metal of Atlantis

In 2015, 39 roughly-cast lumps of an unusual red-gold metal were recovered from the sea floor 300m off the coast of Gela in southern Sicily. The metal was identified as orichalcum, which was said by Ancient Greeks to be found in Atlantis.

A stack of orichalcum ingots as they were found on the sea floor amid the wreck of a ship off Sicily. Picture: Sebastiano Tusa, Superintendent of the Sea-Sicily RegionSource:Supplied

Divers uncovered another 47 ingots from the mud which present unique finding. Scientists claim nothing similar has ever been found yet, orichalcum was mentioned only in some ancient texts and ornamental objects. Indeed orichalcum has long been considered a mysterious metal, its composition and origin widely debated.



Today most scholars agree orichalcum is a brass-like alloy, which was made in antiquity by cementation. This process was achieved with the reaction of zinc ore, charcoal and copper metal in a crucible, which requires modern technology and advance knowledge.

4 – The Betz Mystery Sphere

This bizarre, allegedly self propelled, seamless metallic orb was discovered by members of the Betz family in 1974, and rapidly became the object of fascination, controversy and alarm for scientists, military officials, ufologists and the general public as the story of this mystery sphere spread like wildfire through the international media.

Decades after its discovery, the Betz Sphere remains a scientific mystery

During inspecting the damage caused by a brush fire that had raged across an 88-acre swathe of woodland Betz family stumbled across a peculiar highly polished, metal orb that was just under 8-inches in diameter. The only delineating mark that the three could find on the eerily unblemished object was an elongated triangular shape stamped into its surface. Terry Betz decided to heft the 22 lbs., bowling ball sized sphere into their car and take it back home.

And that’s when the Betzes’ lives changed.

It began when Terry was playing guitar. The family reported that the ball strangely resonated the music. And then it began to move around, all on its own. The Betzes experimented with it, placed it on their table, and watched it navigate its own way around the perimeter without falling off. Doors began slamming themselves around the house. Mysterious organ music filled the residence, even though there was no organ. This seemingly impossible defiance of the laws of Newtonian gravity left the Betz tribe thoroughly baffled.

Puzzled by the bizarre sphere, the US military examined it and found it was made of high-grade steel and X-rays revealed there were three smaller balls inside, the object’s origin remains a mystery.

5 – Kera UFO

During the summer of 1972, a similar to Betz metal sphere (though not spherical) anomalous object plagued a group of teens who repeatedly managed to capture and lose a small, self propelled, evidently intelligently guided device over a vexing 4-weeks period in the Kera area of Kōchi City, Japan.

The airborne object resembled a dull, silver hat with a flat bottom and a narrow lip.

The silver, hat-shaped object weighed 1.3 kilograms (3 lbs) and measured roughly 7 centimeters (3 in) tall and 15 centimeters (6 in) in diameter. The bottom surface was perforated with an array of tiny holes and imprinted with designs depicting what appeared to be a bird, some waves, and another flying object. Something rattled around inside the object when shaken.

The strange device came to be known as the Kera UFO. This object’s movements also defied logic and appeared to be motivated by self preservation “instincts.”