Discover amazing facts about our world!
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A teaspoon of a neutron star would weigh 6 billion tons because it is incredibly dense.
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The longest word in English is 189,819 letters long and is the chemical name for the protein Titin.
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Samsung tests phone durability with a butt-shaped robot that wears jeans to make sure phones survive being sat on.
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Some trees can live for thousands of years; the oldest is over 5,000 years old.
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The Amazon River is the second longest river in the world, after the Nile.
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There are 195 countries in the world today.
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On Mars, sunsets appear blue instead of red.
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Apples float in water because they are 25% air.
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The world’s oldest known “your mom” joke is over 3,500 years old.
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Ancient Egyptians used moldy bread to help heal wounds.
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The dot over the letters “i” and “j” is called a tittle.
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The word "alphabet" comes from the first two letters of the Greek alphabet: alpha and beta.
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The Great Wall of China is over 13,000 miles long.
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Cleopatra lived closer in time to the first moon landing than to the construction of the pyramids.
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The Sun is so massive that more than one million Earths could fit inside it.
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Russia is the largest country in the world by land area.
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The Olympic Games originated in ancient Greece over 2,700 years ago.
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The first video game ever created was called “Tennis for Two” in 1958.
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Your tongue print is unique, just like your fingerprints.
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Giraffes have the same number of neck bones as humans – seven!
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Your body has over 100,000 miles of blood vessels.
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The most commonly spoken language in the world is Mandarin Chinese.
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Carrots were originally purple before orange carrots became popular.
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Your stomach acid is so strong it could dissolve metal, but your stomach lining protects you!
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Broccoli contains more protein than steak per calorie.
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Cows and horses can sleep while standing up.
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Butterflies taste with their feet.
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Earth’s inner core is about 10,832 degrees Fahrenheit, hotter than the surface of the sun!
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The most expensive pizza in the world costs over $12,000 and takes 72 hours to make.
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Bananas are berries, but strawberries aren’t! Botanically, bananas fit the definition of a berry, while strawberries do not because of how their seeds grow on the outside.
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Climate change is melting glaciers, which could raise sea levels by up to 82 feet.
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Bamboo can grow up to 91 centimeters (35 inches) in a single day.
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Honey never spoils; archaeologists have found edible honey in ancient Egyptian tombs.
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Dolphins can shut off half of their brain while sleeping so they can watch for predators.
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There is a language in Mexico called Ayapaneco that is spoken by only two people.
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Australia is both a country and a continent.
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Lightning is five times hotter than the surface of the sun.
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3D printing was invented in the 1980s and can now print food and even organs.
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Leonardo da Vinci could write with one hand and draw with the other at the same time.
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The world’s first smartphone was released in 1994.
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Venus is the hottest planet in our solar system, with surface temperatures around 450°C.
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Did you know that octopuses have three hearts? Two pump blood through the gills, while the third pumps it through the body.
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Lemons float in water, but limes sink because limes are denser than lemons.
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Venus flytraps can snap shut in less than a second to catch prey.
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Starfish can regenerate lost arms, and sometimes an entire new starfish can grow from a single arm.
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The first computer mouse was made of wood.
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The only word in English that ends with “mt” is “dreamt”.
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The shortest war in history lasted only 38 minutes between Britain and Zanzibar.
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The word “bookkeeper” has three consecutive double letters.
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Rainbows are actually full circles, but we usually only see half from the ground.
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Soil is full of life—a teaspoon of soil can hold up to 100 million bacteria.
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Jupiter’s Great Red Spot is a giant storm that has been raging for over 400 years.
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You shed about eight pounds of dead skin every year, which becomes part of the dust in your home.
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The Sahara Desert is the largest hot desert in the world.
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Your sense of smell is closely linked to your memories, and certain smells can trigger strong emotions.
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The first Olympic marathon was 24.85 miles long, not the 26.2 miles it is today.
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Elephants are the only mammals that can’t jump!
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The first-ever Ferris wheel was built in Chicago for the 1893 World’s Fair.
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The shortest war in history lasted only 38 minutes between Britain and Zanzibar in 1896.
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There are more stars in the universe than grains of sand on all the beaches on Earth.
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The sentence “The quick brown fox jumps over the lazy dog” uses every letter in the English alphabet.
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A day on Venus is longer than a year on Venus because it rotates very slowly.
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Mount Everest grows about 4 millimeters higher every year due to tectonic activity.
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Only female mosquitoes bite humans; male mosquitoes drink flower nectar.
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Octopuses have three hearts! Two hearts pump blood to the gills, and one heart pumps it to the rest of the body. Plus, when an octopus swims, the heart that delivers blood to the body actually stops beating!
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Your mouth produces about one liter of saliva each day!
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Koalas sleep up to 22 hours a day to conserve energy.
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The Milky Way galaxy holds between 100 and 400 billion stars.
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Saturn is so light that it could float in water.
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Camels store fat, not water, in their humps. This helps keep them cooler in the desert.
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The first email was sent in 1971 by Ray Tomlinson.
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Octopuses can change both the color and texture of their skin to blend into their surroundings.
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Cucumbers are 96% water.
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Mount Everest grows about 4 millimeters higher every year due to tectonic activity.
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The first-ever Ferris wheel was built in Chicago for the 1893 World’s Fair.
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A cluster of bananas is called a hand; a single banana is called a finger.
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Lemons float in water, but limes sink because limes are denser.
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Butterflies taste with their feet to find out if a leaf is good to lay eggs on.
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You are born with about 300 bones, but as you grow, some fuse together so adults have only 206 bones.
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Scotland has 421 words for snow.
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Canada has the longest coastline in the world, stretching over 202,000 kilometers.
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Slugs have four noses, which help them smell and explore their surroundings.
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Bananas are berries, but strawberries are not!
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The Great Wall of China is over 13,000 miles long.
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Stars come in different sizes and colors, from small red dwarfs to huge blue giants.
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The word “alphabet” comes from the first two letters of the Greek alphabet: alpha and beta.
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Cacti can store hundreds of gallons of water in their stems.
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Your intestines are about 25 feet long from end to end.
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The first email was sent in 1971 by Ray Tomlinson.
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Scotland has 421 words for snow, including “sneesl” (to start raining or snowing) and “flinkdrinkin” (a light snow).
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Cats have 32 muscles in each ear, helping them hear even the slightest sounds.
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Japan has one vending machine for every 40 people, selling everything from drinks to ice cream.
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Jupiter is so big that over 1,300 Earths could fit inside it.
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The first computer mouse was made of wood.
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Did you know that the ocean covers more than 70% of the Earth's surface?
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The only planet that rotates on its side is Uranus, with a tilt of about 98 degrees.
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The word “robot” comes from a Czech word meaning “forced labor”.
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A shrimp’s heart is located inside its head!
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There are more trees on Earth than stars in the Milky Way galaxy.
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Did you know that your nose can remember 50,000 different scents?
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