Ultrarunning has grown exponentially in the 21st century

An ‘ultramarathon’ is any race longer than a marathon

The event is a catchall for any event longer than a marathon, with some races hundreds of miles long. Despite the inherent risks, including death, the sport has exploded in recent years.

Gen Z is increasingly interested in running marathons

The race has become a popular event for young people. Over 12,000 20-somethings signed up for the New York Marathon in 2024. That's a significant increase from 2023 (9.987) and 2022 (8,039).

Running became more popular in the mid-20th century

Once considered a fringe activity, running eventually became an American interest. The trend was spurred in part by the 1966 book "Jogging," which was cowritten by Bill Bowerman, the cofounder of Nike.

Eliud Kipchoge broke the 2-hour mark in a 2019 exhibition

In 2019, Kenya's Kipchoge ran 1:59:40.2, though it was part of an exhibition that included numerous aids—including elite runners cutting his wind and a laser marking the necessary pace—not permitted in officially sanctioned events. As such, it is not eligible for the world record.

The oldest marathoner was 100

Fauja Singh was 100 when he completed the Toronto Waterfront Marathon in 2011 at 8:11:06. Incredibly Singh didn't start running until the age of 89.

Runners typically burn 2,600 calories during a marathon

They also burn between 5-10 pounds of water weight, often feel more focused and elated (thanks to increased neurotransmitters), and, oddly enough, temporarily grow about a half-inch shorter due to back muscles tensing.

The 100 most significant sports moments between 2000 and 2025

This list ranks the 100 most significant sports moments of the first 25 years of the 21st century. The editors compiled the collection based on a list of factors, including the "collective joy" factor, whether it made you curse in disbelief, and how much it transcended the sport and entered the broader culture. The top moment: The improbable "helmet catch" during the Super Bowl in 2008.

Global life expectancy has more than doubled since the 1850s

The human species experienced a dramatic increase in expected lifespan over the past 150 years. Antibiotics, improved sanitation, and better worldwide food distribution are a few factors contributing to this rapid transformation. Use this interactive resource to explore longevity gains over time and compare these improvements across the globe.

The 'ultrawealthy' in 2026 hold $30M or more

This group of ultra-high-net-worth individuals holds more than double the assets of the top 1% of Americans (and this group holds over a third of all American wealth). These folks go beyond a well-funded retirement plan and a paid-off home common to middle-class households with investments in private equity, commercial real estate, and alternative assets like art.

How endurance athletes can build resilience

Long-distance runners and other endurance athletes can improve their performances using tips explored in this article. Findings from two recent studies show that strength training, high-altitude training, and intense interval sessions are all potential methods for ameliorating long-term athletic capabilities.

Pickleball's popularity has exploded in recent years

Pickleball has seen rapid growth in the US, with around 50 million Americans playing in 2022. It doesn't appear to be slowing any time soon.

NFL kickers are kicking the ball farther than ever before

A combination of training, technique, and new rules regarding equipment has led to a sharp improvement in kicking since 2020. Certain players are now allowed to keep footballs with them throughout the practice week and play with a ball of their choosing during games.

Track how college tuition has changed over the years across different types of institutions

The dramatic rise in the cost of higher education has a number of causes, ranging from increased number of students to administrative expansion at institutions. Even when accounting for inflation, the cost to pursue a degree has tripled over the past six decades. See data from the National Center for Education Statistics breaking out costs by institution type and year.

Extreme Games rebranded as X Games for global appeal

In 1996, ESPN shortened “Extreme Games” to “X Games” to make the name easier to translate for international broadcasts and to strengthen branding as the competition expanded to global markets.

Palantir CEO Alex Karp is an avid skier

Karp takes health and fitness very seriously and reportedly skis more than five hours each week. He has frequently recommended Norwegian-style cardio training, which emphasizes the length of a workout rather than effort level. In 2023, Karp reported having just 7% body fat—similar to that of Olympic swimmer Michael Phelps during the 2008 Olympics.

F1 cars have evolved through the decades

Formula 1 has continued to evolve since its first race in 1950. Early cars featured front-mounted engines, narrow tires, and speeds of up to 180 mph. In 1958, rear-engine designs, like the Cooper T43, improved handling and balance. The 1960s brought lightweight materials and wings, which enhanced stability by generating downforce. Ground effect designs of the 1970s revolutionized grip and cornering but were banned in 1982 due to safety concerns. By the 1990s, hybrid turbo engines and energy recovery systems emerged, improving performance. Today’s F1 cars integrate advanced aerodynamics and hybrid technology, reaching speeds of over 220 mph.

The stablecoin market increased tenfold from 2020 to 2025

Specifically, the stablecoin market grew from about $28B in 2020 to $282B in 2025. Some experts forecast that it could grow anywhere from 6.7x to 14.2x by 2030.

Bob Burnquist delivered a near-perfect vert run at the 2001 X Games

Bob Burnquist scored 98.00 in skateboard vert at the 2001 X Games, executing tricks never before attempted in competition—widely regarded as one of the greatest vert runs in history.

Visualize the growth of the Linux kernel source code, which surpassed 40 million lines in 2025

Version 0.01 of the program authored by Linus Torvalds in 1991 spanned approximately 10,000 lines of code and has progressively grown to accommodate the management of an increasing number of hardware and software components. The kernel grows by an estimated 400,000 lines of code every two months.

The number of publicly traded companies has decreased significantly

The stock market hit a peak in 1996, when more than 7,000 companies were publicly traded. But in 2024, there were nearly half that many publicly traded companies.

Fireworks-related ER visits are on the rise—in 2024, they increased by 52% as compared to the prior year.

Rapid intensification can cause hurricanes to increase by two categories in 24 hours

Rapid intensification is a 35 mph or more increase in a hurricane's sustained wind speed within 24 hours. The phenomenon is expected to become more common, resulting in more storms becoming life-threatening faster than people can modify their preparations for the increased intensity.

Wikiracing involves moving between two articles in the fewest clicks

The quirky pastime has evolved into a competitive event at yearly Wikimedia conferences, highlighting the interconnectedness of human knowledge. Neuroscientific research suggests lateral thinking is a crucial skill found in successful Wikiracers.

The mystery of the expanding universe

One of the most surprising discoveries about our universe over the past century is that it's expanding. Even more surprising is that it’s speeding up, and scientists aren’t entirely sure why. The rate should be roughly dependent on the total energy contained in the universe, but calculations keep coming up short. Explore the so-called “Hubble Tension,” along with potential candidates to solve the riddle.

The tournament in 2026 will have 48 teams

After 24 years of having a 32-team tournament, the FIFA World Cup will get an upgrade in 2026, expanding the field to make it the largest World Cup ever.

The hypercompetitive world of becoming a K-pop star

K-pop, a global $8B industry, rose from its 1990s regional roots to worldwide fame thanks to hits like “Gangnam Style.” Trainees endure years of intense training in performance and media skills, with only 4% to 5% debuting.

Long before Major League Baseball began allowing instant replay for balls and strikes, an umpire reluctantly used the technology to determine whether a hit was a home run, a move that inadvertently ushered in a new era for the sport.

While the first exchange-traded fund (a 'basket' of different assets that can be bought and sold on a stock exchange) in the US only launched in 1993, the global ETF market has grown to more than $10T in the short time since.

US housing costs have risen by roughly 175% between 1991 and 2026—but a growing number of Gen Zers are becoming homeowners anyway. In 2025, 4% of homebuyers were Gen Z, up from 3% the year before.

The power and influence of the American presidency have expanded significantly over time—far beyond what the founders envisioned.

Double world record holder Hunter Ewen helped conquer his fear of balloons, called globophobia, by training to win Guinness World Record titles for balloon inflation.

Electrical grids worldwide must double their power delivery capacity by 2050 to meet surging demand from AI and electric vehicles.

The 1987 Nintendo video game 'Stadium Events' isn't known for being particularly fun, but its scarcity has made it a highly sought-after item that has sold for up to $35K at auction.

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

In 2025, four executives from large tech companies were given positions in the US Army Reserves—including Palantir Chief Technology Officer Shyam Sankar, which reinforced Palantir's ties with the US military and its role as a leading defense partner.

Explore fun facts from the USPS, including unique post office buildings, a stamp that traveled past Pluto, and more.

Indefinite cloning of some endangered species may not sustain their longevity because cloning success rates decrease as genetic mutations accumulate.

Poison ivy will likely become both larger and more resilient due to climate change.

Dozens of S&P 500 stocks, including Coca-Cola and Walmart—known as the dividend aristocrats—have increased dividends every year for 25 years

A century of Billboard issues documenting the evolution of popular music.

NBA superstar Victor Wembanyama spent the 2025 summer training with monks in central China to enhance his body and mind.

Children are now three times more likely to say they want to be a YouTuber when they grow up than an astronaut, with some even attending 'YouTube camps' that teach kids how to create content for the platform.

Most of the observable universe's volume consists of voids and supervoids—enormous regions of space with little to no galaxies, stars, or light.

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

Waves off the coast of Nazaré, Portugal, can reach over 100 feet and are caused by the area's deep underwater canyon geography

Visualize the path of every solar eclipse from 1900 to 2099 and see what each looks like when observed from different locations on Earth.

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.

Explore a list of the 100 best novels of all time, compiled by some of the world's best living writers, including Salman Rushdie, Stephen King, and Jennifer Egan.

The most expensive ad of all time was for Chanel No. 5 perfume and cost roughly $33M to produce in 2004—about $57M in today's dollars.

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.