Lost planet Theia is hidden inside the Earth, new study says
Two strange blobs discovered deep within the Earth are the remains of the long-lost ancient planet that contributed to the moon's creation.
Mysterious deaths of elephants explained, three years later
Six of the 35 elephants found dead in Zimbabwe in 2020 were discovered to have bizarre unclassified bacteria in their bodies.
Tough tiny mice found living on frozen volcano, stunning scientists
The mice were originally believed to have been brought to the volcanoes by the Incas.
Mysterious 4,000-year-old "treasure map" may reveal ancient world
The ancient map, a stone etched with strange markings, may lead archeologists to a previously undiscovered ancient kingdom
Mystery as 150-year-old boat containing shoes found near bridge
At the moment, it is unclear where the shipwreck came from, although archeologists believe it is from the 1800s.
I had the Golden State Killer's DNA. I drove to his house
No one knows where I am. I didn't radio in. I didn't call home. I was alone.
Scientists Baffled by Island's Ancient Bear Bones May Have a Breakthrough
Bear bones have been found on two Alaskan islands, posing quite a mystery to archaeologists.
Fluorescent mammals are much more common than scientists thought
Eighty-six percent of mammal species studied were found to glow in the dark under ultraviolet light, new research has found.
Mystery as orca swallows six sea otters whole
Sea otters weighing a combined 258 pounds were found in the stomach and throat of a dead orca on the Russian coast.
Mystery surrounds discovery of locked safe in basement of 1942 hoarder home
The safe was located in the floor of a basement closet that the new owner told Newsweek they did not know existed until they moved in.
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Hundreds of mysterious "fairy circles" seen from space for first time
Fairy circles have puzzled scientists for decades. But new research hopes to reveal insights into their mysterious origin.
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Mystery of strange marks on sea floor solved by scientists
Researchers found that the markings matched up perfectly with the mouthparts of a bizarre deep-sea fish.
Donald Trump opens up about "mystery" surrounding Melania
"I think part of the beauty is that mystery," the former president said.
"Sinister" double-bolted door in man's apartment sparks wild theories
"I'm a fan of weird, creepy fiction, and write a lot of my own, so I often find inspiration in such unusual and faintly sinister things," the man told Newsweek.
Mystery as thousands of anchovies invade California harbor
"We're trying to aerate... and bring more oxygen to the water," Santa Cruz Port District Harbormaster Blake Anderson said.
Man makes eerie discovery while digging up backyard–"extremely freaked out"
The homeowner told Newsweek his wife wanted to call the police, but he has since learned the tragic backstory behind the find.
Scientists puzzled after thousands of sea urchins mysteriously wash up dead
One theory suggests a parasite may have been to blame for the deaths of more than 5,000 sea urchins in the Indian Ocean.
Alligators mysteriously appear in Pennsylvania river
Several alligators have been spotted in Kiski River, despite not being native to the area.
Wild theories swirl as man finds footprints leading to his house at 6 a.m.
"Perfectly fine, just your average wet ghost," said one commenter on a viral Reddit post.
Mysterious 2,800 year old structures found in old Jerusalem baffle experts
The structures are the first of their kind ever discovered in Israel, the country's antiquities authority said in an announcement.
Disturbing discovery as 7 human skullcaps found in river
The human remains found in Argentina have been sent to a forensics lab for further analysis, officials say.
Shells could help find lost Malaysia Airlines flight MH370: Scientists
By studying the chemical makeup of the shells of barnacles attached to debris from the aircraft, scientists may be able to track where the plane went down.
Mystery of New York car wash where 5 pythons have turned up in one month
On Friday, the python was found curled up in the same location as four others, alive and dead, had been discovered in the past month.
Mystery as six dolphins found dead on beach
A group of six dolphins, thought to be common dolphins, have washed up dead on a beach in New Zealand for unknown reasons.
Weird space objects that look like things found on Earth
A variety of strange phenomena have been spotted in the depths of space that look eerily like human objects, or even animals.
Unique 400-year-old sunken ship salvaged with remains of high-quality wine
Around 450 pieces of wood have been recovered from the German shipwreck since salvage work began in June
Cave lion or cave bear? Ice age animal puzzles archaeologists
Researchers found a missing fragment of a famed ornament discovered 20 years ago, in an Ice Age cave.
Mystery shipwreck found on Lake Michigan floor
The Michigan Shipwreck Research Association had been trying to locate the vessel since last year.
Scientists solve mystery of unidentified space object washed up on beach
The huge metal cylinder found on a beach in Western Australia has now been identified by the Australian Space Agency as part of a rocket from another country.
Shawn O'Brien's daughter thinks death might have been an accidental killing
His daughter also took issue with the police's conduct while investigating the death of her father in 2006.