Vestibular Paroxysmia is often overlooked as a vertigo-causing diagnosis

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.

Lake Sørvágsvatn sits about 32 meters (105 feet) above sea level, but the taller surrounding cliffs create an optical illusion that makes it appear to float much higher above the ocean.

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

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.

Explore an interactive timeline of Earth's 4.5-billion-year history to visualize shifting landmasses and oceans, view the locations of significant asteroid impacts, and learn about major geological and biological events.

Streaming service Netflix's sound logo 'Tudum' was designed as a key sonic differentiator.

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

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

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.

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.

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

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

The US jobs projected to shrink the fastest over the next decade include typists and word processors.

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

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

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.

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

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.

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

The average banana produces one positron—the antimatter counterpart to an electron—every 75 minutes as its trace amounts of radioactive potassium decay.

Humans tend to imagine aliens as humanlike, but that's probably unlikely. Three different hypothetical planets show how aliens' bodies could take many forms.

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

'Golden blood' is the rarest blood type in the world—fewer than 50 people are known to have it.

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

One of the most famous portraits ever taken is 'Afghan Girl' (1984) by Steve McCurry, yet the subject Sharbat Gula went much of her life without being identified or benefitting from the image's success.

One of the most famous portraits ever taken is "Afghan Girl" by Steve McCurry. Sharbat Gula, the subject of the photo, was not credited until 2002 for her role in the famous National Geographic cover, and continued to live in poverty after the photo was taken.

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.

Here are some tips from Pew Research to help you distinguish between a good poll and an unreliable one.

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

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.

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.'

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.

There are 'YouTube camps' that teach children how to create content for the video platform.

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.

'Bibliotherapy' is of increasing interest as a way to improve mental health and help navigate complex life situations—with people immersing themselves in the experiences of fictional characters or nonfiction and self-help books to find relief and gain personal insights.

Male pattern baldness accounts for more than 95% of hair loss in men and is characterized by thinning hair, hair loss, and a receding hairline.

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

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.'

Researchers generally group gut bacteria into six different categories, with varying amounts of these microbes residing in different parts of the digestive tract.

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

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