All facts — Page 30
The complete ONAURE library, newest first. Every fact has an explanation and a source you can check.
2056 facts
The praying mantis has five eyes, two large ones and three small ones between them.
In addition to the two large compound eyes, the praying mantis has three simple eyes, called ocelli, located between…
The hyoid bone is the only bone in the human body that is not connected to any other bone.
The hyoid bone, located at the base of the tongue, does not articulate directly with any other bone. It is supported…
The interstitium is a new human organ discovered in 2018 that runs throughout the body.
The interstitium is a network of fluid-filled spaces between tissues, present under the skin and between organs…
The muscle that tries to move human ears still activates when we try to hear something difficult.
The auricular posterior muscle, an evolutionary vestige, contracts when we make an effort to hear difficult sounds…
Traditional Bulgarian yoghurt is made with live ants, which are added to milk to ferment it.
An ancestral recipe from Bulgaria uses live red ants dipped in milk. The ants release formic acid and enzymes that…
Wasabi, the spicy green paste served with sushi, is made from a root.
True wasabi is obtained from the rhizome of the Wasabia japonica plant, a root that grows in specific conditions of…
The ghost island in the Caspian Sea appeared in 2023 and still exists permanently today.
Kumani Island emerged in the Caspian Sea after a mud volcano eruption in 2023. However, it was ephemeral and…
The Silk Road was exclusively overland and never had maritime routes.
The Silk Road was not only overland. There was also a maritime Silk Road connecting ports in China, Southeast Asia…
A royal tomb discovered in Belize may belong to the Maya king who founded the city of Caracol.
Archaeologists found a richly decorated tomb in Belize that may belong to one of the first kings of Caracol, a…
The aurora borealis is a purely visual phenomenon and does not emit any sound.
Auroras can emit sounds, although faint. Finnish scientists have identified that the sounds, described as crackles or…
Noctilucent clouds are the highest clouds in the atmosphere and glow at night.
These clouds form in the mesosphere, about 80 kilometres altitude, where temperatures are extremely low. They are…
All 118 elements of the periodic table exist naturally on Earth.
Of the 118 elements in the periodic table, only about 90 occur naturally on Earth. The rest were created in the…
In 2025, artificial intelligence helped identify a new hypernucleus with two strange quarks.
A hypernucleus is an atomic nucleus that contains at least one hyperon, a particle with strange quarks. AI analysed…
The exoplanet PSR J2322-2650b is shaped like a lemon because it orbits a normal star.
The exoplanet PSR J2322-2650b, with a mass similar to Jupiter s, orbits a pulsar at an extremely short distance…
The interstellar comet 3I/Atlas releases more than five tonnes of water vapour per second.
Comet 3I/Atlas, the third known interstellar object to cross the Solar System, was observed releasing water vapour at…
A supermassive black hole was expelled from its galaxy and is creating stars along its path.
The James Webb telescope observed a runaway supermassive black hole, expelled from its galaxy, travelling through…
The world's smallest autonomous robots are smaller than a grain of salt.
Researchers at Penn and Michigan universities created programmable autonomous robots only 200 by 300 by 50…
Current artificial intelligence already possesses independent intellectual curiosity, similar to that of a child.
Experts, including Turing Award winner Robert Tarjan, state that current AI still lacks independent intellectual…
Wombat feces are cube-shaped.
Wombats have intestines with varying elasticity, which mold the feces into cubes. This prevents the droppings from…
The human stomach replaces its lining every three to four days.
Gastric acid is strong enough to digest metal, so the stomach needs to generate a new layer of mucus and epithelial…
Russia has a larger surface area than the planet Pluto.
The surface area of Russia is about seventeen million square kilometers, while the surface area of Pluto is only…
Bananas are slightly radioactive due to their potassium content.
Bananas contain potassium-forty, a naturally occurring radioactive isotope. However, the amount is so small that you…
Footprints left on the Moon will remain there for millions of years.
Due to the absence of atmosphere, wind, or water on the Moon, there is no erosion to erase the astronauts' marks…
The QWERTY keyboard layout was designed to prevent mechanical jams.
By separating the most commonly used letter pairs in the English language, the creator of the QWERTY layout…