There are more billionaires than ever. But how does this vast accumulation of wealth affect the world? Mark Cuban and Bernie Sanders offer insights.

An innocent evening of pet-sitting for a YouTube star turns into a night of survival horror that is inadvertently live-streamed to millions of viewers around the world.

Time flies… sometimes. Its passage can seem to speed up and slow down. Why do we experience time the way we do, and how do we take back some control?

How do monarchies survive when they no longer wield power? By presenting a royal fairy tale that may not reflect the reality of the past — or present.

The planet’s current rate of meat consumption is unprecedented — and becoming unsustainable. In the future, will meat alternatives be the answer?

Beauty may be in the eye of the beholder, but what exactly makes things such as art and architecture aesthetically pleasing, and why do we like looking?

A diamond is forever. But why is that? Dig into how these mined pieces of carbon became both a status symbol and a sparkly sign of everlasting love.

Computer code now controls how we live. But how did these programming languages evolve? And how can they be used to build a new and better world?

In pop culture, pirates are often depicted as booty-looting rogues, but their history is far more complicated. See how they became enemies of humanity.

If you’re not worried about a looming global pandemic, you probably should be. Are we prepared for an outbreak? Bill Gates and other experts weigh in.

What goes on inside an animal’s mind? Figuring out how they think and feel might just be the key to understanding our own place in the world.

It began with bloomers. Then came spandex. Now we sport leggings and other activewear everywhere. How did comfy, casual clothing go mainstream?

How do cults lure people in and exert control? Learn a cult’s telltale signs, and how loneliness and life online makes indoctrination easier than ever.

When does sound become music? Why are humans so uniquely able to master musicality? Researchers talk rhythm, octaves and the magic of song and dance.

Marijuana experts discuss the rise of potent “sexually frustrated” cannabis plants, the quests for consistency in weed strains and the history of hemp.

Scientific feat or terrifying social experiment? Specialists in the field discuss the high stakes and ethical controversies of gene editing.

New discoveries at the site of an alleged long-lost gold mine could lead investigators to a 200-million-dollar payday, and using cutting-edge tech, experts investigate clues in long-lost maps and relics…

Why do we dream? When the lights go out, interesting things happen in the brain and body. What’s the significance of dreams, and what can they teach us?

Ancient Aliens has followed investigators across the globe as they’ve gone directly to the sites where unexplained incidents have been reported. Now, Giorgio Tsoukalos takes a look back at the…

A series of unexplained deaths near Chicago in 1982 starts a nationwide panic; the victims are connected by one frightening detail: cyanide-tainted capsules of Extra-Strength Tylenol; 40 years later, it…

A series of unexplained deaths near Chicago in 1982 starts a nationwide panic; the victims are connected by one frightening detail: cyanide-tainted capsules of Extra-Strength Tylenol; 40 years later, it…

Many U.S. government personnel have reported sustaining unexplained and debilitating neurological injuries while working abroad; Mike Baker investigates if these invisible, mind-altering attacks are evidence of active mind-control programs worldwide.

Zak Bagans and the crew investigate a Utah mansion soaked in tragedy and bloodshed. Unexplained paranormal activity has the new owner desperate for answers, and the team is concerned that…

Ricki Lake brings the five families together to discuss all the drama of the past year. Secrets are revealed, breakups explained and one couple has a surprising announcement.

A chef and his wife find the perfect location for their restaurant in a cozy waterfront town, but the spirits haunting the Victorian mansion have other plans; soon, eerie and…

Could a bipedal figure crossing a snowy field be the fabled yeti? Is a color-changing orb in the sky another example in a long history of UFOs in Italy? And…

Could the remains of a small, human-like creature be the corpse of an alien visitor? Are loud booms plaguing the area of New Jersey actually coming from giants or gods?…

Could mysterious lights under the surface of the deepest lake on Earth be connected to extraterrestrial life? Has Bigfoot’s call and chatter finally been captured on tape? Could UFOs possibly…

What could have caused a baby shark to develop an eerie. human-like face? Are blue lights in the sky a sign that the end is coming? And are aliens vacationing…

Following a shocking revelation by Dee, Naomi enlists her friends to dig deeper into the mystery surrounding unexplained occurrences in Port Oswego and whether they have anything to do with…

Juwan Mass reveals pier-camera footage of a legendary harbinger roaming the Carolinas and a possible demonic spirit captured on camera by a woman camping in the Rockies. Jack Osbourne talks…

The U.S.S. Cerritos is dispatched to a planet to investigate an unexplained sighting of a dangerous Mugato.

Mina and Karen take on a massive house in the Old Southside neighborhood that has undergone some unsuccessful renovations throughout the years. They are determined to rework the entire floor…

Answering a distressed couple’s call for help in Biglerville, Pa.; the newlyweds believe a cursed witching tree in the yard is behind the apparitions and unexplained noises haunting their 18th-century…

The Winchester brothers seek the help of their family friend Bobby while investigating a series of unexplained happenings on a local college campus.