(calm music) - [Narrator] From advanced
medicine to space travel, we humans often think we've
got it all figured out. But the truth is, there are
still many things out there that totally defy explanation. From children from impossible places to miracles in the sky, here
are some unsolved mysteries that can't easily be
explained, but I'll try anyway. (cheerful music) The Cape Intruder. Back in 2005, residents of
Cape Elizabeth, Maine, U.S.A., began noticing some strange
happenings each time night fell. And this wasn't merely sleep walking. No. Countless residents of the
town reported waking up in the night to see a
guy staring back at them, all matching the same description. These sleeping victims would
catch only a tiny glimpse of the elusive figure, but before even getting a chance to react, he would vanish into thin air, leaving nothing behind
but traumatized victims. Creepy as that might be,
the Cape Intruder's victims could take comfort in the fact that this intruder
seemingly came in peace. No harm was done to
them or their property, and nothing was stolen. So aside from the weird
sleep watching thing, he seems like an alright guy, I guess. These sleeping victims weren't
about to rest on this though. A rough sketch was put together and featured on the local news, which actually brought
forward a number of calls from citizens claiming to
know possible suspects. But while two people
named the same suspect, the authorities never
managed to crack the case with a real conclusion. After his initial series of visitations, the mysterious Cape Intruder never snooped on the sleeping again. Or at least we think. Unless he just got better
at sneaking undetected. Alternatively, it's possible
the guy never existed at all and was just a series of
incidences of sleep paralysis, with peoples' half-waking,
half-dream states influenced by the reporting descriptions of the man they'd been hearing about. But with no way of knowing,
the only thing that's for sure is that I'll be locking my door tonight. (image whooshing) The green children of Woolpit. Way back in the 12th century,
village residents of Woolpit, in Suffolk, England, stumbled
upon a truly bizarre sight: two children, a boy and girl, with skin of a distinctly green hue. They seemed to have fallen from nowhere as they were found on
the village outskirts speaking complete gibberish. Yet their supposed origin
would be revealed much later, shocking the villagers of Woolpit. According to writings at the
time by Ralph of Coggeshall, these sage-colored siblings were taken in and cared for by Sir Richard de Calne, who was baffled to discover
that these green-hued children would only eat green broad beans. The children were not evergreens, however. In fact, after some years
of slowly being weaned of the green-only diet, they eventually lost
their chartreuse shade. Though the boy fell ill and died not long after his discovery, the girl continued to
be raised by Sir Richard and eventually learnt English. It was then that she would explain exactly how she and her brother came to the village of Woolpit. She claimed to be from a place
called St. Martin's Land, which she described as a twilight world where the sun never shone. One day she and her brother were herding their father's cattle when
they heard a strange noise emitted from a cave nearby. As they passed through this cave, they found themselves arriving in Woolpit where they would soon be
discovered by the villagers. So what truth might lie behind
this puzzling medieval tale, recorded factually as it was at the time? English writer Robert
Burton suggested in 1621 these little green
people fell from heaven, while many assume their tale to be merely the stuff of folklore. Others in more recent years, however, pose more scientific solutions. Some suggest the children had
suffered arsenic poisoning or even chlorosis, a
condition caused by poor diet which can turn a person's
skin a green-ish hue. As for what the children were doing there and why they spoke an unknown language, some theorize that they were
children of Flemish immigrants. At the time, many Flemish
people immigrated to England, and it was possible
the green kids' parents died after the move, leaving
them to wander off for help. Being so young when it occurred, it's possible these details
were forgotten by the girl when she finally learned to speak English. Even more supportive to the argument that the green children were
real is the fact that Suffolk does indeed have a village by the name of Fornham St. Martin, which did exist at the time. As far as I can tell, though, the sun shines as normal in the skies above Fornham St. Martin, disappointingly. But, with the reality of the
events long lost to history, nobody can be certain just how much of this
tale really occurred. Though if you do know,
I'm green with envy. (image whooshing) The Tromp family. Back in August 2016 the
Tromp family of Australia abandoned their redcurrant
farm near Melbourne and took an impromptu
1,000-mile road trip. Why? Well, because they had a strong belief that they were being hunted down. Husband and wife Mark and
Jacoba were the masterminds behind this bizarre, sudden vacation, convincing their children that they were all in grave danger. Their three adult children,
Riana, Mitchell, and Ella, all in their 20s, fully convinced, all tagged along for the ride. Well, not all. 25-year-old Mitchell
seemed to be the only one not consumed by the belief
that the family were in danger, and instead only went to ensure
his family would be safe. It's unclear as to why the Tromps believed they were under attack, but it's said that leading up to this Mark and Jacoba exhibited increasing signs of stress and paranoia, fearing
for their lives and money. Determined to leave no traces behind for their supposed pursuers, the Tromps left all
traceable items at home, such as phones and bank cards. They were going completely off grid, and when they discovered Mitchell's phone, which he'd smuggled along with him, they made him throw it out the car window. After a day's travel, they
found themselves 500 miles north in a town called Bathurst
in New South Wales, at which point Mitchell
decided to leave his family and return home, as he since revealed their
behavior became intolerable. Nevertheless, the rest of the family continued their pilgrimage to safety. But it wasn't long before the
two sisters, Riana and Ella, split from the pack too,
going on to steal a car and report their parents as missing. Soon after that, Ella
decided to return home, while Riana found herself in
Goulburn, New South Wales. It was here that things got even stranger, as she inexplicably climbed into the back of a utility vehicle. The driver, around an hour later, discovered his unexpected
guest in a catatonic state, and when she awoke, she claimed
she didn't know her name, nor where she was. Clearly distressed, she was
taken into psychiatric care at a nearby hospital. It wasn't long before
this volatile vacation reached journey's end. Mom, dad, and Riana were
found by a search effort and the Tromps all pretty
much snapped out of it, returning back to their redcurrant farm and their normal lives. But what exactly had
caused this insane episode? Nobody's quite sure, not even the Tromps. Some suspect a rare phenomenon
called folie a deux, which translated from French
means madness of the two. This rare psychological
disorder occurs mostly in close-knit families whereby members share a
sudden collective madness and believe the same delusions, like that of the Tromps being in danger. It's suggested that stress
and social isolation are large contributors to this disorder, so whether this was indeed
what the Tromps experienced, there could certainly be a
few more cases on the rise after the stresses of pandemic lockdowns. (image whooshing) Ningens. From Santa to the Loch Ness Monster, most would scoff at the
existence of strange entities and creatures from
folklore and urban legends, yet there's always that little voice in the back of your mind
wondering, "What if?" One mystery creature that some claim walk the desolate corners of the earth is one you've probably
never heard of: the Ningen. These cryptic creatures
supposedly lurk in the lands and seas of the Antarctic. And given how few people have ever visited Earth's southernmost continent, sightings are extremely rare. Those who claim to have seen a Ningen, which are typically encountered around the Antarctic Ocean's shores, say they're around 65 to 100
feet tall, white, and bipedal, with eyes, mouth, legs, and
even five-fingered hands. According to one account shared online, crew members on deck initially
thought they had come across a foreign submarine,
yet as they got closer, they discovered it was
actually a living creature as it quickly vanished into the water. While some argue that Ningens
are, in fact, real entities of their own, others
understandably dismiss the Ningen as misidentifications of
whales, sharks, or squids. Given how closely images like this one allegedly showing a Ningen
resemble a leaping beluga whale, it's certainly a plausible explanation. But for those Ningens
reported to be sighted on land rather than sea, the explanation may be
the stuff of illusion. Strange phenomena known as snow
mirages can happen in places like the Antarctic due to
special atmospheric conditions. As cold air is denser than warm air, it can occasionally
bend light in such a way that it warps the human eye's
perception of distant objects, meaning some Ningen watchers
may have been tricked by the intense Antarctic weather into thinking they were
seeing giant, moving entities in the snowy distance. But if you're willing to travel down there to solve the mystery of these
weird M&M-looking creatures once and for all, be my guest. (image whooshing) Electric girl. If you could have a
superpower, what would it be? Super-strength? Invisibility? Well, it turns out superpowers
might just be real, but they're not all that super. Take Jacqueline Priestman
of Manchester, England whose alleged origin story began in 1980. After an argument with her husband, she rather unkindly told him,
"I hope you break your neck." Lo and behold, later that same day that's exactly how he
shuffled off this mortal coil after a traffic accident. But that's not even the half of it. It was around this time
Jacqueline started to notice a change in how her body
affected electricity. Strange things began to occur, like countless light
bulbs violently exploding in her presence without apparent cause, her radio and TV automatically
turning themselves on and coasting between stations, and most troubling of all,
the intense electric shocks she began experiencing
when touching appliances. As Jacqueline noticed
the increasing problem electricity posed to her,
or equally she to it, she decided to visit a professor about her involuntary voltage issues. He recorded an abnormal
build-up of static electricity within Jackie's body, 10
times that of a normal person. He supposed this may be caused by an alkali-acid imbalance in her body, possibly triggered by the stress of suddenly losing her husband. The solution? Walk around
the house holding onions. Sounds crazy, but the professor claimed such behavior would
discharge the electricity given that onions are
naturally good conductors, and it actually did manage to
reduce Jacqueline's symptoms. However, no matter how many
onions Jacqueline held, it didn't prevent her daughter, who she had with her new husband in 1985, being likewise bestowed with
the same electric curse. While a chemical imbalance
may have been to blame for Jacqueline's strange superpower, the whole truth of its
sudden mid-life emergence, and the case of her daughter being born with the same symptoms,
leaves this electric tale with more questions than answers. (image whooshing) The Black Knight satellite. What do you see in this image
captured by NASA back in 1998? While to some, and perhaps you, it's clearly just a piece of space junk that's been caught in the Earth's orbit, others argue it's something
a lot more out-there. Specifically, that it's a 13,000-year-old artificially-made satellite believed to be the work of ancient aliens known as the Black Knight satellite. This bizarre theory has its
origins as far back as 1899 when Nikola Tesla claimed to
have received radio signals from space during his radio experiments. Believers interweave this story
with one of UFO researcher Donald Keyhoe, who, in 1954,
claimed that the U.S. Air Force detected two satellites orbiting Earth, which at the time no
country had the technology to launch a satellite. While Keyhoe never provided
any meaningful evidence for his claims, the two
stories were later retrofitted to the admittedly UFO-like 1998 NASA image when it was released, and the Black Knight
Satellite theory was born. Believers began attributing
Tesla's radio signals to the apparent satellites, theorizing this was the work of aliens. However, Jerry Ross, an astronaut veteran, claims that the so-called
ancient alien satellite captured in the 1998 photo is actually just a thermal blanket
that broke loose into orbit while his team were carrying out work on the International Space Station. What's more, Tesla's alien
radio waves from space have since been widely assumed
to be radio frequencies emitted naturally from celestial bodies, possibly even from the
electromagnetic emissions of our own sun. And while those seem like
more tangible explanations, it still doesn't satisfy the
staunchest alien believers who maintain that the heavens are home to extra-terrestrial observers, the truth being covered
up by government bodies. Now, I tend to fall on the
side of scientific study rather than the scribblings
of strangers on the internet, but let me know which side you
fall on down in the comments. And if you're mystified by
these mysterious mysteries, then why not discover
what those mysterious Like and Subscribe buttons do? Spoiler alert: you'll be amazed. (image whooshing) Miracles of the air. The universe in which we find ourselves is one heck of a weird place. No one knew this better than
the people of Fatima, Portugal who got into a bit of a frenzy
when they noticed something very odd going on with
sun on October 13th, 1917. After a period of rain, observers claimed the dark clouds parted, revealing a sight that
left jaws on the floor. The sun was unusually dull, appeared to be rapidly
spinning in the sky. Emitting from it was
a beautiful blue light that ricocheted in rainbow-like
beams across the sky as if refracted by the colored panes of a stained-glass window. Slowly fading into a yellow glow, this spectacle had the people
falling to their knees, praying in the presence of the miracle they believed they were witnessing. While many at the time attributed
this strange occurrence to higher powers, there may be a viable
meteorological explanation. At high altitudes, clouds of ice crystals can cause phenomena known as sun dogs, where the refraction of
light through the ice cause the appearance of false suns and bands of rainbow color. If these crystals gain an electric charge, it's theorized that they
can be rapidly pulled around in the sky, their motion creating the same crazy-looking effects as those described by
the people of Fatima. But the events in Fatima
aren't the only time strange, ethereal forms have
been spotted in the sky. One equally-bizarre phenomenon
hikers occasionally encounter is known as a Brocken spectre, named after the Brocken peak in Germany where this phenomenon is often sighted. So what exactly is this
ghostly phenomenon? Well, the spectral effect
happens when the observer stands above the upper surface of a cloud, like on a mountain or
any kind of high ground. Mix that in with a bit of mist and a low sun behind the
viewer casting a long shadow, and you've got the perfect
recipe for a Brocken spectre. You can certainly imagine the
fright of the first viewer of this mysterious phenomenon
before science came around to offer some answers
as to what was going on. Similarly strange cloudy
occurrences have been observed all around the world, including huge towers of
swirling, circular clouds in the sky like these. While many who've viewed
these colorful stacked clouds have been quick to deem them UFOs, their curious appearance
is actually very likely to be a unique type of cloud known as an altocumulus lenticularis, made to glow in fiery colors by the low angle of the setting sun. These striking clouds form as moist air travels over structures like mountains, which guide it upwards, and, as the moisture condenses,
into wave-like clouds bearing the mountain's general outline. So, with all these bizarre
phenomenon occurring naturally in our skies, the real mystery
is what sky-bound oddity science will turn its eye to next. Maybe flying pigs? (image whooshing) Trails of the unknown. Have you ever spotted
cloudy trails in the sky that seem like they're from an airplane, only when you go to check
there's no plane in sight to provide an apparent source for them? If so, you're not alone. From the U.S.A. all the way to Iceland, countless people have
spotted suspicious trails appearing in the sky, and they may indeed be more
than your common contrail. Appearing as if some great
spacecraft is plummeting into the atmosphere, these
sights have left beholders equal parts fascinated and unnerved as to what may be behind them. The most likely answer is
indeed extra-terrestrial, though not in an E.T.-phone-home-because-he-crashed-the-spaceship kind of way. These mysterious marks are
very likely to be the trails of meteorites burning
up and disintegrating in the atmosphere as
they travel through it at blistering speeds
that occasionally exceed 160,000 miles per hour. In incredibly rare instances, witnesses spy two burning
tracks in parallel, which appear to turn in sync. While parallel trails
like these are, again, most likely to be from meteorites that have split into two chunks when entering the atmosphere, the seemingly synchronized manner in which they are occasionally
noted to change directions is something of a head-scratcher. While a powerful mid-air explosion as one of the meteorites disintegrates could conceivably knock both of them onto an alternate course, we still don't know for certain, leaving plenty of room for speculation. Do you have any ideas? Let me know down in the comments. (image whooshing) Trevaline Evans. It's reported that every
year in the U.S. alone more than 600,000 people go missing. And with a large number never found, families and loved ones are
left in a sad state of suspense, holding out hope that those missing are still out there somewhere. This is the case with Trevaline Evans, an antique dealer from North Wales. On a seemingly ordinary
day, June 16th, 1990, she left her antique shop
and put a note saying, "Back in two minutes." But two minutes turned into
two days, then two weeks, then two months. Having been gone for over 30 years now, with no one having seen her, nor even figured out where she was headed, Trevaline seems to be
at a point of no return. Despite a major investigation
and numerous appeals, the disappearance of Trevaline Evans continues to be a cold case. However, one person keen
to get to the bottom of this 30-year hiatus is
freelance journalist Tim Hicks, who recently teamed up with retired police intelligence
officer Chris Clark. After putting their heads together, the detective duo think they
might have a possible suspect for Trevaline's disappearance,
or rather, demise. They suspect that a convict,
Christopher Halliwell, is to blame, what with
him living in the area at the time of the disappearance and having been previously sentenced for crimes of a truly heinous nature. But while that might
seem extremely plausible, there's currently no real
evidence to support this. Not to mention the absence
of Trevaline's body to even prove that she isn't still alive. It's a tragic and yet
very real unsolved mystery that continues to evade any resolution. (image whooshing) Lady Dai. Ah, Lady Di, the people's princess. Adored by many. A true British tragedy. Oh wait, no. They're telling me in my ear that we're not talking about that Lady Di. And I'm sure you're wondering, "Which other Lady Di is there?" And to that I say, the original. This Lady Dai was the Marquise of Dai, wife to a nobleman during
the Western Han dynasty of ancient China. Incredibly, she was found some
2,000 years after her passing astoundingly well-preserved. This preserved woman seemed
to defy the laws of decay when she was discovered, with skin eerily still soft to the touch, locks of raven hair, and even traces of blood
found remaining in her veins, type A, if you were wondering. When workers digging
for construction in 1968 accidentally uncovered her tomb, Lady Dai was so well preserved that researchers were even able to carry out an autopsy on her. And while a lady never tells her age, scientists dated Dai back to 163 BC, and the autopsy revealed
a range of ailments, including gallstones, high cholesterol, blood pressure, and liver disease. These ailments appear
to have been the product of an over-indulgent diet
and lack of exercise, causing her to die at the
estimated tender age of 50, the final blow determined
to be a heart attack. While examining Lady Dai, pathologists even found
138 undigested melon seeds in her stomach and intestines. As such seeds typically take
about an hour to digest, it's safe to assume melon
was Dai's final snack very close to the time of her passing. Perhaps the heart attack came along because the melon was so damn tasty. Either way, Dai's exposure to
oxygen since her excavation has taken a toll on her once radiant skin, so pictures available today
don't even show her full glory from the moment she was discovered. They say the camera adds 10 pounds, but for Dai, it's more like 10 centuries. Well, 20, to be precise. So, what's Lady Dai's
eternal youth secret? Well, nobody is entirely sure. She's by far the best-preserved
mummy ever found, and while this is at least
partially due to the fact that she was buried 40 feet
underground in multiple coffins and 20 layers of clothing like
a Russian matryoshka doll, there still remains one mystery. Scientists found Lady Dai's body in 21 gallons of unknown liquid. And while they managed to
find some traces of magnesium, the full extent of the
mildly acidic liquid is largely unknown. A secret Dai's quite
literally taken to the grave. So which mystery left you
eager to find out the truth? Let me know down in the comments. And as always, thanks for watching. I'll see you in the next one. (cheerful music)
