As recently as 40,000 years ago we lived among humans from an entirely different species – Neanderthals. About the same time our species showed up, Neanderthals suddenly vanished. Just what happened to the other guys? Did our ancestors do something … bad?
In the early 90s, a new study that found that kids who are exposed to more germs early in life are less likely to develop allergies later. With the West in the grip of a full-blown immunity crisis (still going on today), this was an interesting thought.
For a while in the 1980s, people were fascinated and confused about what exactly crop circles were. Now we know that they aren't signs left from aliens, but art made by humans. Learn all about these stunning, large form art installations in today's episode.
The secret military base Area 51 is inextricably linked to every secret, shady project the US government is rumored to be involved in – from reverse-engineering alien technology to coordinating a one-world government. The truth is much more mundane.
There is an extremely rare condition where the sufferer is convinced that everyone around him is an impostor posing as their friends and family. Learn about the neurology behind this strange and sad mental disorder in this episode.
Barcodes are everywhere. Those little lines and numbers that make up one of the most recognizable barcodes, the UPC, was designed to make going to the grocery a lot less miserable. It ended up becoming the central symbol of the global economy.
Ever wonder why some great shows go off the air after a season or less? Blame it on the Nielsen company, which has for more than 60 years been the almost exclusive decider of what goes and what stays on TV.
The panic that began in Chicago spreads and begins to change the world. The investigation into the murders turns up leads and suspects, but still no one has ever been charged with the murders. It remains unsolved to this day.
You know how some older married couples (sorry, senior adult married couples) start to look alike over time? That’s a really weird phenomenon if you think about it. So science has looked into it and they think they kind of have it figured out.
On one terrible day in Chicago in 1982, seven people died suddenly and mysteriously. In just a matter of hours, it becomes clear, someone has poisoned bottles of Extra-Strength Tylenol, one of the most trusted and widely-used products in America.
Over the course of our lives, 80 percent of us will experience acne. Ultimately, acne comes down to one thing, a blockage in the sebaceous gland. Learn what makes a blackhead black, and everything else about zits, in this pus-filled episode of SYSK.
Tin Pan Alley was an area of New York around the beginning of the 20th Century that served as ground zero for the earliest iterations of the music publishing industry. Learn all about this unique place and time right now.
In a new age shop or on display at the Smithsonian, there are varying interpretations of what crystals can be used for. But at their base, they are a thumb in the eye to entropy, a perfectly ordered piece of matter.