Explaining the icy mystery of the Dyatlov Pass deaths

Investigating the death of a 5,300-year-old mummy

Authorities generally consider a case to have gone cold once they've run out of leads or the ability to collect and consider new evidence, usually within a few years of the instigating event. Now imagine being a detective charged with investigating a death that happened more than 5,000 years ago. This article details how Alexander Horn, a then-detective inspector, attempted to solve the mystery of Ötzi the Iceman's death.

A day in the coldest village on Earth

The people of Yakutia, a far northern region of Russia, live a challenging, but harmonious, life with nature, facing some of the world's coldest temperatures. Tag along for the day with 9-year-old Arian and his family to see how they manage the cold, from constant wood-chopping to keep their home warm to the meticulous ice fishing which sustains their diet.

The steep and slippery Russian ice slides sparked centuries-long obsessions with thrill-seeking

When a French traveler happened upon the 17th and 18th century Russian pastime of sledding down man-made hills, he brought the idea home and inspired others to modernize the mechanics. Adoration for coasters spread around Europe and eventually reached the US, where the scream machine would undergo major advancements.

Tracking the Isdal Woman

In 1970, a burnt body encircled by an odd assortment of items was found in a remote Norwegian valley. For nearly 50 years, the true identity of the woman escaped authorities who found she had traveled the country under many names. This podcast episode is the first in a 12-part series seeking to uncover the woman's identity and what happened in her final moments.

Avalanches happen when layered snow fails, often on perfect ski slopes

Snowpacks form unstable layers as weather shifts; a weak, refrozen layer buried under fresh snow can shear and release a slab avalanche on certain steep slopes. Triggers range from new snowfall to the movement of skiers, while survival depends on the presence of ski partners, beacons, and rescue teams.

A riveting retelling of the 1846 Donner Party, the doomed western pioneers

Eighty-one people went with the Donner Party into the Sierra Nevada mountains in the winter of 1846 via what they thought would be a shortcut to the West. Only 41 came out. The infamous episode of Western travel is captured in narrative detail in this four-part podcast series. This first episode reveals the motivations that pushed the party on this specific route.

Limited transparency soon after Chernobyl made it a source of conspiracy theories

Some rumors about the event became perceived as more reliable than the Soviet mass media, which had omitted key information during the early days of uncertainty. The resulting theories included CIA involvement in the disaster, three-headed birds, aliens, and a weaponized earthquake.

How a rural Indiana tragedy became true crime

In February 2017, two teens were dropped off at a local hangout spot near the northern edge of Delphi, Indiana, a city of less than 3,000 people. One of the girls was filming and briefly caught footage of a man coming toward them before they were apparently cornered and "marched to their deaths." The suspect remains unknown despite audio and grainy video evidence, giving rise to rumor and speculation.

Ghost stories across cultures often trace back to traumatic events

From a bat-like demon in Tanzania to a malevolent woman figure hovering above your sleeping body, the four disturbing tales outlined in this NPR article offer a glimpse into how happenings from WWII or the Aztec Empire haunt people’s memories.

Japan's mysterious disappearance industry

Tens of thousands of Japanese people reportedly choose to leave their lives behind and vanish, according to a 2016 book by Lena Mauger. This long read dives into some of the book's claims via interviews with some of the individuals opting to vanish,...

The extremophilic origins of watermelon snow and its impact on glacial melting

Also known as "blood snow," the red coloration is produced by snow algae that thrive in extremely cold conditions and take the shape of red spherical cysts in winter. To protect themselves from more intense summer solar radiation, these psychrophiles accumulate red, orange, and yellow pigments, intensifying their coloration and causing glaciers to reflect less sunlight than if they were white.

How to survive hypothermia

Hypothermia is a deadly risk for those living in cold areas, causing around 1,500 deaths a year in the United States. Stay safe with tips from this article, which cites research papers to help prevent and treat the condition. Take note of the best fabric to wear when cold weather hits—not cotton but wool.

The mysterious details of Stalin's death

The 73-year-old dictator of the Soviet Union died March 5, 1953, officially from a stroke, on top of nearly a decade of significant medical issues. But evidence suggests the longtime leader might have been poisoned less than a week before at an intimate gathering of Stalin's closest confidantes and advisors. Explore the current evidence for Stalin's alleged murder here.

The Night Witches

During World War II, one of the most effective Soviet bombing units flew wooden crop dusters that maxed out at 94 mph. They had no radios, no radar, and no parachutes. And the pilots? Young Soviet women, mostly in their teens and early twenties. The Germans called them Nachthexen—Night Witches. Shooting one down earned a Nazi soldier an Iron Cross, one of the highest military honors. However, for decades, most of the world forgot they existed. In this video, we trace how the Night Witches became one of the most feared units of WWII—and why their story nearly disappeared from history.

How a 6-year-old girl survived the wilderness of Arkansas alone for days

In 2001, a family trip to the Buffalo National River Wilderness in the Arkansas Ozarks took a dark turn, unfolding a tale of bizarre events when six-year-old Haley was lost and reportedly helped by the spirit of a little girl who resembled a child...

Dinosaurs’ feathers and greater metabolism helped them survive polar conditions

Studies of dinosaur footprints alongside ice-deposited rock fragments indicate that early dinosaurs adapted to cold weather before the volcanic winters of the Triassic-Jurassic extinction event. These geological events helped dinosaurs to flourish by wiping out their amphibious competitors.

Scientists can determine Earth's past climate conditions by analyzing air trapped in microscopic bubbles within ice cores—columns of compressed snow layers that build up over hundreds of thousands of years.

The ‘paranormal activity’ lab at the University of Virginia

Near-death experiences aren’t the only thing they study at Greyson’s Division of Perceptual Studies. The lab approaches a host of “paranormal” phenomena—like past lives and out-of-body experiences—with the same academic rigor as the physics or economics department.

The US Olympic hockey team upset the USSR in 1980—later dubbed the 'Miracle on Ice'

At the 1980 Winter Olympics, a team of American college players defeated the heavily favored Soviet hockey team—shocking the world. The victory became a defining moment of Cold War sports rivalry and American national pride.

Why dizziness is still a mystery

Dizzy spells can completely upend the lives of those suddenly struggling to find their footing. Despite this severe impact, the different flavors of dizziness and their sources continue to elude medical understanding. This article follows a health...

Scientists are still confused how Machu Picchu was built

Machu Picchu, the 15th-century Inca city high in the Andes, continues to fascinate experts with its mysteries. The methods used to transport and carve its massive stones—some weighing 15 tons—remain unclear. Theories range from hundreds of men dragging the stones to innovative techniques like using expanding wet wooden wedges for precision carving.

Meteorologists believe they know the weather that inspired the terror behind Munch's painting 'The Scream'

Helene Muri, a meteorologist at the University of Oslo, believes the clouds causing the man such terror are nacreous. "We do know that there were mother-of-pearl clouds in the Oslo area in the late 19th century," she said, though she was careful to note that it was still a hypothesis.

An interactive trek up Mount Everest

At just over 29,000 feet, Mount Everest is the highest summit on Earth and the premiere destination for serious climbers. The imposing peak has also claimed at least 322 lives over the past century, or between four and five victims per year. This...

Why hibernating bears don't get blood clots

For mammals, long periods of inactivity can lead to health problems—blood flow slows and pools, veins kink and distort, and clots potentially form. Hibernation takes this risk to the extreme, yet for decades why animals like bears did not exhibit...

Explaining why animals don't cross this invisible line in Indonesia

Although the distance separating the two regions is small, East and West Indonesia have starkly different species, puzzling scientists for decades. Biogeographers use the theory of plate tectonics to explain the phenomenon, arguing the two regions...

The inside story of the 1969 murder of coal union leader Jock Yablonski

In 1969, Jock Yablonski challenged the longtime president of the United Mine Workers, Tony Boyle. On New Year's Eve of that year, Yablonski, his wife, and their daughter were brutally murdered in their beds.

In 2009, the nation was gripped by the story of a missing young boy who was believed to be floating over Colorado in a homemade balloon, until it was revealed that he was at home the whole time.

The deadliest aspect of volcanic eruptions is often not lava, but pyroclastic flows—avalanches of ash, gas, and rock that can move more than half the speed of sound.

In 2018, 26-year-old missionary John Allen Chau was killed by tribesmen after attempting to reach and evangelize on India's isolated North Sentinel Island

In 1963, a basement renovation in Turkey revealed a passageway to a hidden, multilevel underground city that once housed as many as 20,000 people

This real-time tracking of the hantavirus cruise ship outbreak in May 2026 offers a unique glimpse into the global reach of the outbreak and whether the virus sickened passengers and their communities around the world.

How the most famous Ebola book, The Hot Zone, which sold 3.5 million copies and was translated into 30 languages, got aspects of the disease so wrong.

At the beginning of the 20th century, a group of young men ate standard American food—replete with food additives like borax and formaldehyde—as part of government research to better understand food safety.

Discover the catastrophic consequences of a failure of the US electrical grid—something that is more likely than many Americans think.

For centuries, Niagara Falls has been a magnet for daredevils seeking to conquer one of nature's most powerful wonders, with its 200-foot drop and water rushing at 32 feet per second with 280 tons of force.

The boiling temperature of water decreases with increasing elevation because the molecules need less energy to overcome the lower atmospheric pressure associated with thinner air.

The identity of the Tank Man in the iconic photo from the 1989 Tiananmen Square protests remains unknown and was possibly killed.

A Yale student wrote a profound essay about the consulting industry's influence on elite college students that was published in a book of her writing after she died in a post-graduation car accident.

See the 25 of the best photos of auroras from around the world.

Before humans, the Soviet Union and the United States sent animals—including apes, dogs, and cats—to space during the Space Race.

Fear or disgust related to clusters of holes and cracks, called trypophobia, may stem from evolutionary processes to help us avoid pathogens.

Clever Hans was a 1900s horse that was believed to be able to solve math equations, tell time, and read and comprehend German, until a psychology student discovered how he got his answers.

A 2019 Facebook event called on attendees to "Storm Area 51, They Can't Stop All of Us," resulting in countless memes, the creation of a music festival, and eventually the arrests of those who did try to approach the area.

Poison ivy can cause rashes year-round since all parts of the plant contain urushiol, the oil that triggers our allergic response.

The Great Salt Lake's distinct dual coloration results from high-salinity organisms that only live in the northern portion and produce a purple protein.

Recent research found that the brain doesn't seem to massively rewire following amputation—upending earlier beliefs about the cause of phantom limb pain.

US intelligence allegedly pursued more than 600 schemes to assassinate Cuban revolutionary Fidel Castro.

According to the physics of black holes, our 4D reality may be a hologram—a projection of information coded on a 2D surface on the edge of the universe.

The Russia-Ukraine conflict is the largest ground war in Europe since World War II in casualties, forces mobilized, and displacement of civilians.

Exploring the Larry Bird punch that almost changed March Madness