Dolly Parton's 'I Will Always Love You' was written as a goodbye for her musical collaborator, Porter Wagoner.

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.

You may be better at spotting a lie when listening to a speaker's voice inflections rather than watching for facial and body cues.

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

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

Stonehenge was built using giant wooden rollers and precisely carved tongue-and-groove joints to lock the stones in place.

This short animation shows how human beings managed to lug 30-ton stones over miles of prehistoric English countryside and stand them up The Stone Age engineering involved using giant wooden rollers and carving precisely interlocking tongue-and-groove joints to hold the heavy stones in place.

Play the role of a student as you try to navigate college and remain debt-free.

Find out how important you are to AI tools when they generate text responses with this tool, which estimates the weights of people's names.

Metamorphosis evolved over millions of years as species that hatched as smaller versions of adults started exhibiting genetic mutations that differentiated juvenile and adult bodies.

Located on Ross Island in Antarctica, Mount Erebus is the southernmost active volcano on Earth and features a lava lake—one of eight known worldwide as of 2026—that erupts regularly.

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

Explore the history of American restaurants through an archive of menus dating back to the early 1800s.

Watch an animated visualization of how the Large Hadron Collider works, including how particles are accelerated through a series of machines and how collision data is collected and distributed worldwide.

Explore a collection of famous literary maps, including original images from 'Treasure Island,' 'The Swiss Family Robinson, ' and 'Walden.'

Experience a century of America's healthcare advances with this medical visualization, tracing a sampling of healthcare innovations from head to toe.

All rainbows are 'raincircles' caused by water droplets separating white sunlight into a spectrum of colors, but Earth's surface blocks the bottom half of the circle from our line of sight.

If the moon were less than one-twelfth its current distance from Earth, the planet's tidal forces would overcome the moon's internal gravity, tearing it apart and forming a ring of debris.

George Lucas used Joseph Campbell's 'hero's journey,' a narrative structure that encompasses the common characteristics of multiple cultures' mythologies, to revise 'Star Wars.'

Explore 3D models of some of the most dangerous viruses, allowing us to understand these and other pathogens in new ways.

Watch footage from the moments the Titanic wreck was discovered by a joint US-French research team in 1985.

Watch a breakdown of the canine family tree that explains how foxes and wolves are related to our beloved household pets, like poodles and dachshunds.

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

Explore how temperatures compare to historical averages in cities worldwide with this interactive global monitor.

Give your memories a place to live and explore the personal stories left by strangers, tied to specific locations, in this interactive map of the world.

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

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

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

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

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

See a 3D reconstruction of Tenochtitlan, the Aztec capital

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

Washing dishware before putting it in a dishwasher may reduce the appliance's effectiveness because it dynamically adjusts wash time and temperature based on a sensor that detects dirtiness.

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.

There are up to 100 trillion microbes in the gut, and maintaining the relative balance in this ecosystem is important for our health.

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.

The Aztec Empire ruled over 80,000 square miles of central Mexico for nearly a century—until a small band of Spanish conquistadors brought it down in 1521.

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

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.'

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.

A dog's nose can be up to 100,000 times more sensitive than a human's, and each possesses a secondary organ for smelling, which helps learn about other dogs when they sniff each other's butts.

Joan Didion interviewed The Grateful Dead in 1967, before they became music icons.