Explore how the most commonly used words in the English language have changed from the 1950s to 2023.

Author David Foster Wallace's 'This Is Water' speech provides guidance for adulthood

Fecal transplants can help treat infections by transplanting healthy gut bacteria from a donor into a patient's gastrointestinal tract using samples of human waste, which are turned into a liquid mixture and often delivered via a colonoscopy procedure.

Watch Bruce Springsteen's 1985 performance of Woody Guthrie's 'This Land Is Your Land,' which he calls 'the greatest song ever written about America.'

Plato's famous allegory of the cave is a metaphor exploring the value of truth over ignorance.

The collapse of gas bubbles in the joint synovial fluid causes 'cracking' knuckles.

Rapid intensification is the increase in a hurricane's sustained wind speed by at least 35 miles per hour within 24 hours, which can strengthen it by up to two categories.

Explore (and debunk) the world's most contagious misconceptions—from the 5-second rule to sugar rushes—on this interactive site. Click on each misconception for further evidence.

Watch Dr. Laurence Peter explain his 'Peter Principle,' which states that people are promoted to their level of incompetence and explains why bosses aren't always good at their jobs.

This interactive website features nearly 40,000 photos from Wikipedia for you to create visual mosaics with.

See a 3D reconstruction of Tenochtitlan, the Aztec capital

Watch President John F. Kennedy's speech on going to the moon

Watch 4-plus decades of Pixar's opening logos.

Sea stars are invertebrates—they lack a backbone—and while most exhibit pentametric radial symmetry due to having five arms radiating from a central disk, some can possess more than 40.

Explore the known asteroids, comets, and spacecraft involved in asteroid studies within our solar system with 'Eyes on Asteroids,' a 3D visualization from NASA.

The final shots of the Civil War were fired in the Arctic over 2 months after the South's surrender.

On planets in systems with two stars, such as the fictional Tatooine from 'Star Wars,' observers would see overlapping rainbows and double rainbows.

Humans may have as many as 100,000 to 150,000 individual hairs on our scalps, growing at a rate of roughly 1 centimeter per month.

Cats have a mutation that prevents them from tasting sweetness, and goldfish rank among the world's supertasters.

Explore the history, structure, and species of Australia's Great Barrier Reef with this interactive journey narrated by Sir David Attenborough.

See where your state ranked in an analysis of the best public school systems in the US.

Explore Lewis and Clark's 8,000-mile journey in Google Earth.

Computer scientists first started trying to optimize dating using computers in the 1950s.

Semaglutides, which belong to a class of drugs called GLP-1s, are prescribed for weight loss in combination with diet and exercise because they trigger the release of the appetite-suppressing hormone incretin.

Relax to a livestream of brown bears chilling in Katmai National Park in Alaska.

Listen to audio clips from Hoover, a harbor seal named after its insatiable appetite, who learned to say English phrases such as 'hello there' and 'come over here.'

The animatronic shark from 'Jaws' was a complex machine called 'Bruce.'

The world's largest waterfall is in the ocean and is more than three times the height of Angel Falls, the largest waterfall on land.

Watch a two-year time-lapse of a pinecone seed transforming into a pine tree.

The Berlin Wall physically separated East and West Berlin for nearly three decades, preventing East Germans from fleeing to the West and earning the nickname 'the Iron Curtain.'

Abraham Lincoln had to sneak into Washington, DC, in disguise for his 1861 inauguration after a detective uncovered a plot to assassinate him in Baltimore.

Watch a visualization of what it would look like to move along Earth's surface as fast as the International Space Station, or about 23 times the speed of sound.

Although the moon passes between the sun and Earth each month, its orbit is tilted by five degrees, preventing Earth from experiencing a solar eclipse each month.

Watch what would happen if you literally had all the money in the world.

See a breakdown of how some of the most common food items are traded across the globe, including the key trade relationships for each item.

Lesser-known phobias include turophobia, or the fear of cheese, and nomophobia, the fear of being without your cell phone.

Explore a detailed map of Odysseus' fictional journey from 'The Odyssey.'

As part of the up to 15 pounds of seafood they consume daily, sea otters eat urchins that feed on kelp forests—sources of shelter and food to over 800 species—thereby making the marine mammal a keystone species.

The US has discontinued a variety of different currency denominations over the years—including a $100K bill.

Pregnancy makes someone more attractive to the mosquito species that transmits malaria.