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11,491 facts. Click any fact to see its full page.
All 11,491
π History 1,991
π¬ Science 1,964
πΎ Animals 1,525
π Space 977
π§ Psychology 893
πΏ Nature 759
π» Technology 735
π Geography 599
π Culture 581
π« Human Body 572
π Ocean 373
π¬ Language 245
π Food 199
β¨ General 68
β¨ Dinosaur 10
A bolt of lightning can reach temperatures hotter than 50,000Β°F.
The average person spends about six years of their life dreaming.
Some turtles survived the asteroid that wiped out the dinosaurs.
There are more possible arrangements of a deck of cards than there are atoms on Earth.
A day on Earth is not exactly 24 hours, which is why leap seconds exist.
Your brain sometimes creates false memories without you realizing it.
You can fit all the planets of the solar system between Earth and the Moon with room to spare.
Bananas are radioactive because they contain potassiumβ40.
There are more neural connections in your brain than stars in the Milky Way.
A photon of light can take thousands of years to escape the Sun's core.
You replace most of your body's atoms every few years.
Some galaxies are moving away from us faster than the speed of light due to expansion.
Your heart beats about 3 billion times over an average lifetime.
A teaspoon of honey represents the lifetime work of about 12 bees.
The observable universe contains an estimated two trillion galaxies.
If the Sun suddenly disappeared, Earth would keep orbiting for about 8 minutes before drifting away.
Some particles can pass through your entire body without interacting with a single atom.
Your brain can recognize a familiar face in less than half a second.
There are more possible games of chess than seconds in the age of the universe.
You are made of atoms that were forged inside ancient stars.
Time moves slightly faster on mountaintops than at sea level due to gravity.
The Voyager 1 spacecraft is so far away that its signals take over 20 hours to reach Earth.
A single lightning bolt can power a home for weeks.
Some black holes spin at nearly the speed of light.
There is enough DNA in your body to stretch from the Sun to Pluto and back many times.
Your brain runs on about 20 watts of power, roughly enough to power a dim light bulb.
Neutron stars are so dense that a sugarβcubeβsized piece would weigh billions of tons.
If you could fold a piece of paper 42 times, it would reach the Moon.
Some animals can survive in space briefly.
The human body generates electricity.
Some deserts were once oceans.
Your brain processes images faster than a blink.
Some asteroids have their own moons.
The human eye blinks about 15 times per minute.
Some insects can survive being frozen solid.
The Earth's gravity varies slightly across its surface.
There are more neurons in your brain than stars in the Milky Way.
Some stars pulse regularly.
The Earth's core spins independently of the surface.
Some planets rain diamonds under certain conditions.
The human body produces billions of cells every day.
Some animals can survive without oxygen for extended periods.
The Sun is considered an average-sized star.
The Earth's magnetic field flips polarity over long periods.
Some crystals can grow naturally.
The human brain can store vast amounts of information.
Your stomach lining replaces itself every few days.
A hurricane releases more energy than many nuclear bombs.
There are lakes beneath Antarcticaβs ice.
The human nervous system can send signals at over 200 miles per hour.