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The James Webb Space Telescope spotted giant star-like objects with a black hole actively feeding at their core.
Learn more โThese millimeter-sized animals can enter a state of suspended metabolism and survive conditions that would kill almost any other organism.
Learn more โTurritopsis dohrnii, nicknamed the "immortal jellyfish," can turn its mature cells back into a juvenile form.
Learn more โIn 897, Pope Stephen VI had his predecessorโs corpse dug up, dressed in papal robes, and put on trial at the so-called "Cadaver Synod."
Learn more โThe classic double-slit experiment shows that the very act of measurement changes how particles behave โ it doesn't just describe them.
Learn more โEntangled quantum particles respond to a measurement on the other one almost instantly, no matter how far apart they are.
Learn more โObservations of the object AT2024wpp show a star tidally shredded by a black hole that, instead of vanishing, started flaring in a strange, repeating rhythm.
Learn more โNeutron star matter is so dense that a single teaspoon of it on Earth would weigh billions of tons.
Learn more โThe galaxies themselves aren't moving faster than light, but the space between us and them is stretching fast enough that the effective distance grows faster than c.
Learn more โOrdinary matter made of atoms is just a sliver of the universe's contents โ the rest is dark matter and dark energy.
Learn more โAfter a limb is amputated, the brain can still generate real, severe pain in the exact spot where that limb used to be.
Learn more โSharks evolved around 450 million years ago โ a solid few tens of millions of years before the first trees existed.
Learn more โA mantis shrimp's limbs accelerate so violently they trigger cavitation โ bubbles that collapse and release heat and light.
Learn more โThe Mexican amphibian larva known as the axolotl regenerates lost body parts almost without scarring, rebuilding bone, muscle, nerves, and blood vessels.
Learn more โElysia chlorotica absorbs chloroplasts from the algae it eats and builds them into its own cells, producing energy from light like a plant.
Learn more โEvery bottlenose dolphin develops its own unique signature whistle that functions like a name, and other dolphins recognize and repeat it.
Learn more โThe 1975 Banqiao Dam disaster in China, triggered by a typhoon, led to one of the deadliest floods in human history.
Learn more โIn the American Tuskegee experiment, conducted from the 1930s to the 1970s, researchers set out to observe the untreated progression of a disease in Black men who were denied available treatment.
Learn more โIn the summer of 1518, dozens of Strasbourg residents began dancing nonstop for days โ and the cityโs solution was to... encourage more dancing.
Learn more โIn the 1960s, Project Pluto tested a supersonic cruise missile powered by a nuclear reactor, capable of circling the globe for weeks.
Learn more โDuring the Cold War, the CIA surgically implanted microphones and transmitters into live cats to eavesdrop on Soviet diplomats.
Learn more โHiroo Onoda hid out in the Philippines and waged a one-man guerrilla war until 1974, refusing to believe Japan had surrendered.
Learn more โThe 1902 eruption of Mont Pelรฉe on Martinique killed nearly everyone in Saint-Pierre โ among the few who survived was a prisoner shielded by his cellโs thick walls.
Learn more โThe total length of DNA in every cell of one human, laid end to end, dwarfs the Earth-Sun distance many times over.
Learn more โMillimeter-sized animals sent into orbit survived cosmic UV radiation and the vacuum of space with zero protection.
Learn more โAccording to general relativity, gravity slows time down โ the farther you are from Earth's mass, the faster your clock ticks.
Learn more โCephalopods make heavy use of RNA editing to fine-tune their proteins to conditions, instead of relying solely on DNA mutations.
Learn more โOrdinary matter โ stars, planets, people โ makes up only a tiny fraction of everything the universe actually contains.
Learn more โSunlight takes eight minutes to reach Earth, but the energy from the Sun's core takes far, far longer to fight its way out of the Sun itself.
Learn more โOphiocordyceps fungi force infected ants to climb vegetation before erupting from their heads.
Learn more โQubits exploit superposition, letting quantum computations explore many possibilities in parallel before collapsing to one result.
Learn more โResidents of the Pacific island of Yap used giant stone discs as currency, without ever physically moving them after a deal.
Learn more โPostwar Hungary printed a banknote worth 100 quintillion pengล โ the highest denomination ever to enter legal circulation.
Learn more โDuring Venezuela's hyperinflation crisis, the cost of the paper and printing for a banknote sometimes exceeded the value it represented.
Learn more โNew research shows the gap in the Grand Canyon's rock record opened hundreds of millions of years earlier than geologists believed for a century and a half.
Learn more โWritten in an unknown script and filled with bizarre illustrations, the Voynich Manuscript has resisted every attempt to crack it for centuries.
Learn more โThe "Wow!" signal, picked up by a radio telescope in 1977, remains one of the strongest candidates ever for a signal from beyond Earth.
Learn more โThe Mandela Effect describes how large groups of people end up sharing the exact same false memory of the same facts.
Learn more โIn quantum experiments, measuring which path a particle takes changes the outcome of the experiment, even though nothing physically touches it.
Learn more โDark matter is estimated to make up about 85% of all matter in the universe, yet no detector has ever physically "caught" it.
Learn more โObservations of distant supernovae showed that the expansion of the universe is accelerating, an effect attributed to mysterious "dark energy."
Learn more โVenus spins on its axis so slowly that one day there is longer than one full trip around the Sun.
Learn more โGPS satellites have to correct their clocks by microseconds every day, or the entire navigation system would drift by kilometers.
Learn more โThe crushing pressure inside these gas giants' atmospheres may turn carbon into crystalline diamonds that sink toward the core.
Learn more โLight from distant stars and galaxies takes years, millennia, or billions of years to reach us, so we see them as they were long ago.
Learn more โBeyond Earth's atmosphere, high-energy cosmic particles pass straight through the retina, triggering visible flashes even in total darkness.
Learn more โWhere the optic nerve exits the retina, there are zero light receptors โ your brain just paints over the gap.
Learn more โBrain tissue has no pain receptors at all โ which is exactly why neurosurgeons can operate on a fully awake patient.
Learn more โHuman memory doesn't work like a video recording โ every time you recall a memory, you slightly distort it and save over the original.
Learn more โStudies on so-called open-label placebos show that the mere ritual of taking an "empty" pill can genuinely ease symptoms, even when the patient is fully aware there's no drug in it.
Learn more โDuring REM sleep, the brain actively blocks signals to your muscles so your body doesn't physically act out whatever's happening in your dreams.
Learn more โTwo hearts pump blood through the gills, one pumps it through the rest of the body โ and the blood itself is blue, not red.
Learn more โDespite having a brain the size of a poppy seed, bees in experiments learn to tell one specific human face apart from others.
Learn more โKoala fingerprints are similar enough to human ones that under a microscope, they've even confused forensic experts.
Learn more โSome ant species link their legs and jaws together into living bridges and rafts so the rest of the colony can cross.
Learn more โA special arrangement of blood vessels and neck vertebrae lets owls rotate their heads nearly three times further than a human can, without cutting off blood flow to the brain.
Learn more โMudskippers are fish that come ashore on muddy coastlines, move around on their fins like legs, and breathe through their moist skin.
Learn more โSalmon memorize the unique chemical "scent" of their home river and, after years spent in the open ocean, can find their way back to it to spawn.
Learn more โThe snap of a pistol shrimp's claw generates a sound louder than a gunshot, strong enough to stun a small fish.
Learn more โChina's Great Famine (1959-1961) killed an estimated tens of millions of people โ figures range wildly depending on the source.
Learn more โIn 1908, a massive explosion over Siberia leveled a forest larger than London, without leaving a crater.
Learn more โThe 1883 eruption of Krakatoa was heard on the island of Rodrigues, a distance comparable to a flight from Warsaw to New York.
Learn more โFour decades after the disaster, the land around Chernobyl hosts one of the richest wild animal populations in Europe.
Learn more โIn 1917, a collision between a munitions ship and another vessel in Halifax, Canada, flattened an entire district of the city.
Learn more โIn 1984, a toxic gas leak from a pesticide plant in Bhopal, India, killed thousands of people within just a few days.
Learn more โThe English colony on Roanoke Island in North America disappeared in the 1590s, and its fate remains unexplained to this day.
Learn more โThe sinking of the Philippine ferry Doรฑa Paz in 1987 after colliding with a tanker killed more people than any other civilian maritime disaster.
Learn more โThe 1918-1919 "Spanish flu" pandemic killed an estimated number of people higher than the combat deaths of World War I โ and its name is misleading.
Learn more โThe eruption of Mount Vesuvius in 79 AD buried Pompeii in ash, and the famous "bodies" of the victims are plaster casts of the voids left by their decomposed remains.
Learn more โIn 1947, a fire aboard a ship loaded with ammonium nitrate in the port of Texas City triggered an explosion that destroyed most of the port and killed hundreds of people.
Learn more โIn 1944-45, Japan launched over 9,000 balloon bombs, riding the jet stream to carry them all the way to North America.
Learn more โIn 1932, the Australian military deployed machine guns against wild emus destroying crops โ and still couldnโt beat them.
Learn more โProject Habakkuk envisioned a massive aircraft carrier made of "pykrete" โ a mix of ice and sawdust, nearly unsinkable thanks to its slow melting rate.
Learn more โIn 1814, a giant brewery tank burst in London, unleashing a wave of hundreds of thousands of liters of beer that destroyed homes and killed several people.
Learn more โDuring the Prussian siege of Paris in 1870-71, hunger got so bad that exotic zoo animals ended up on Parisiansโ dinner plates.
Learn more โMedieval Europe held formal court trials against animals, including pigs, rats, and insects, complete with full legal procedure and a court-appointed defense attorney.
Learn more โThe Carrington Event is the strongest geomagnetic storm ever recorded โ it kept the telegraph network running even after operators cut the power.
Learn more โAt the so-called triple point, liquid water, ice, and steam all coexist at once in a single, stable state.
Learn more โLaser cooling uses light not to heat things up, but to slow atoms down to temperatures near absolute zero.
Learn more โProducing antimatter in particle accelerators is so energy-intensive that its hypothetical cost runs into the trillions of dollars per gram.
Learn more โMantis shrimp have up to a dozen or more types of color receptors, compared to just three in humans.
Learn more โMetal-reducing bacteria use iron or manganese oxide as an electron acceptor instead of oxygen, literally "breathing rock."
Learn more โHyperinflation in Zimbabwe hit a pace in 2008 where prices doubled every couple of days.
Learn more โIn 1930s America, farmers destroyed food surpluses to prop up crashed prices, even as hunger spread through cities.
Learn more โEstimates suggest around 20% of all mined bitcoin sits in wallets nobody can access anymore.
Learn more โIn the 1630s in the Netherlands, prices for rare tulip varieties shot up so high that a single bulb could be worth more than a townhouse.
Learn more โThe traditional shell currency known as tabu still functions alongside official state money, including for paying dowries.
Learn more โAn economist who was himself a prisoner of war described how a full price system based on cigarettes spontaneously emerged among inmates.
Learn more โHigh-frequency algorithmic trading (HFT) opens and closes trades in fractions of a millisecond, with no human involved in the moment itself.
Learn more โBoulders on the dried-up Racetrack Playa in Death Valley leave long trails behind them, even though nobody ever moves them.
Learn more โBlood Falls is a natural spring where intensely red, salty water seeps out from beneath the Taylor Glacier.
Learn more โThe highly alkaline waters of Tanzania's Lake Natron preserve animal bodies in a way that looks like natural mummification.
Learn more โThe deepest point in Earth's oceans sits almost 11 kilometers below the surface.
Learn more โMexico's Cave of Crystals in Naica hides gigantic selenite columns that grew for hundreds of thousands of years in perfectly stable conditions.
Learn more โSon Doong in Vietnam is one of the largest known caves on Earth โ so enormous that trees grow and clouds form inside it.
Learn more โThe Nazca Lines are giant centuries-old geoglyphs whose full shape can barely be made out except from high above.
Learn more โThe Great Pyramid of Giza is oriented to geographic north with an error of less than a tenth of a degree.
Learn more โIn studies of so-called "open-label placebo," symptoms improved even though participants knew from the start they were getting no active substance.
Learn more โThe Antikythera mechanism, pulled from a shipwreck more than two thousand years old, could predict planetary motion and eclipses.
Learn more โThe leading hypothesis is that migratory birds perceive magnetic field lines as a pattern overlaid on their normal vision.
Learn more โA uranium deposit in Gabon shows traces of a self-sustaining nuclear fission reaction that occurred with no human involvement at all.
Learn more โValles Marineris on Mars is so long that, stretched across the US, it would span an entire continent.
Learn more โTidal friction caused by the Moon is slowly braking Earth's rotation, so the day has been gradually stretching for billions of years.
Learn more โThe name suggests emptiness, but a black hole is the opposite of empty: an enormous mass packed into an unprecedentedly tiny volume.
Learn more โIf a big enough tub existed, Saturn's density is low enough that the planet would actually float.
Learn more โYour heart has its own built-in pacemaker and can keep a rhythm even when it's disconnected from your brain and the rest of your body.
Learn more โThe longest documented case of hiccups lasted nearly seven decades โ and it started over something completely trivial.
Learn more โHuman cells emit a tiny amount of visible light as a byproduct of metabolism โ you're glowing right now.
Learn more โDuring every blink, your brain actively suppresses vision, so the world never seems to "cut out" โ even though your eyes are physically closed.
Learn more โThe enteric nervous system packs hundreds of millions of neurons and can operate independently of the brain โ which is why it's called the "second brain."
Learn more โUnlike vision or hearing, your sense of time has no single dedicated sense organ โ your brain builds it from multiple clues at once.
Learn more โThe human liver has a regenerative ability unmatched by any other major organ โ even after losing most of its mass, it can rebuild itself back to nearly full size.
Learn more โA reflective layer inside a reindeer's eye physically changes structure with the seasons, shifting the iris's color.
Learn more โAs the only known animal to do it, the wombat shapes its droppings into near-perfect cubes thanks to varying elasticity in its intestinal wall.
Learn more โThe world's largest land arthropod can crush a coconut's hard shell with its claws, generating one of the strongest grips ever measured in the animal kingdom.
Learn more โTendons in a bat's feet clamp shut mechanically under the weight of its own body, so hanging costs it essentially no energy at all.
Learn more โVultures eat carrion in a state of decay that would kill almost any other animal, thanks to a stomach with exceptionally strong acidity.
Learn more โThe plague pandemic of 1347-1351 killed an estimated 30-50% of Europe's population โ the highest death toll in the continent's documented history.
Learn more โIn December 1952, thick fog mixed with coal smoke caused thousands of Londoners to die within just a few days.
Learn more โIn 2013, a small asteroid entered the atmosphere over Chelyabinsk, creating a shockwave that shattered thousands of windows.
Learn more โThe earthquake that destroyed Lisbon in 1755 triggered a tsunami and fires, along with a deep philosophical crisis in Europe.
Learn more โIn 1962, three inmates broke out of the island prison of Alcatraz using a makeshift raft, and their fate has never been conclusively determined.
Learn more โThe War of Jenkinsโ Ear (1739) between Britain and Spain was named after a captain who lost his ear in an incident at sea seven years earlier.
Learn more โThe Great Fire of London in 1666 destroyed more than 13,000 homes, yet official records list only a handful of deaths.
Learn more โIn 1859, Joshua Norton declared himself "Emperor of the United States," and local shops and banks actually honored his own currency.
Learn more โTulip mania in 17th-century Holland got so extreme that a single tulip bulb was valued higher than a craftsmanโs annual salary.
Learn more โThe Second Defenestration of Prague in 1618, when Protestant nobles threw Catholic officials out of a castle window, was the spark that ignited the Thirty Yearsโ War.
Learn more โA 1977 New York power outage, lasting about 25 hours, spiraled into mass looting and arson across dozens of neighborhoods.
Learn more โDays before the 1929 Wall Street crash, respected economists were publicly insisting the market had reached a permanently high, stable plateau.
Learn more โShape-memory alloys like nitinol return to their original form when heated, even after being badly bent out of shape.
Learn more โErwin Schrรถdinger came up with his famous thought experiment as a critique of how absurd a certain interpretation of quantum physics was.
Learn more โThe 1904 forerunner of Monopoly, "The Landlord's Game," was designed to show players how destructive it is when ownership piles up in one set of hands.
Learn more โIn Somalia, the local shilling notes are so worn out and so rarely replaced that many people prefer mobile money for everyday transactions instead.
Learn more โFor years, minting an American penny (1 cent) has cost the US government more than its face value.
Learn more โOver more than a century, the Finnish conglomerate Nokia moved through the paper, rubber, and electrical cable industries โ long before it ever touched telecom.
Learn more โSweden has moved so far away from cash that even street collections and church offering plates come equipped with card readers.
Learn more โThe Darvaza crater in Turkmenistan, nicknamed the 'Gateway to Hell,' has been on fire for decades โ and nobody's entirely sure when or why it started.
Learn more โLake Maracaibo in Venezuela hosts some of the most frequent lightning storms on Earth โ the phenomenon runs almost nonstop on most nights of the year.
Learn more โSocotra Island off the coast of Yemen has been isolated for so long that it evolved plants unlike anything else on the planet.
Learn more โLake Baikal in Siberia is the deepest and one of the oldest lakes on Earth, holding a huge share of the world's unfrozen fresh water.
Learn more โSurtsey Island off Iceland's coast was born from an underwater volcanic eruption in the 1960s and has been watched ever since as a natural laboratory for how an ecosystem begins.
Learn more โEisriesenwelt in Austria is the world's largest ice cave open to visitors, with ice formations stretching many meters deep into the mountain.
Learn more โThe Richat Structure, known as the Eye of the Sahara, is a massive, concentric rock formation in the Sahara visible even from orbit.
Learn more โ"The Bloop" was an ultra-low-frequency sound picked up in the Pacific in 1997, and for years nobody knew what made it.
Learn more โErwin Schrรถdinger invented his cat as mockery of the quantum interpretation of his day, not as an endorsement of it.
Learn more โThere are several serious scientific theories about what sleep is actually for, but none of them explains everything.
Learn more โLake Vostok lies more than 3.5 kilometers under Antarctic ice and may have been isolated from the rest of the biosphere for millions of years.
Learn more โThe megaliths at Baalbek weigh hundreds of tons apiece, and the method used to transport and place them has never been definitively established.
Learn more โThe Nazca Lines are so massive that their full shape only becomes legible from the air, long before flight was ever invented.
Learn more โQuasicrystals have an ordered structure that never repeats, something long considered mathematically impossible in nature.
Learn more โAfter spacewalks, astronaut suits smell like burnt gunpowder and seared meat โ and that's not a joke.
Learn more โThe Sun holds over 99.8% of all the mass in the Solar System โ every planet combined barely registers.
Learn more โWithout gravity compressing the spine, astronauts come back from missions temporarily taller than when they left.
Learn more โThe Moon drifts a few centimeters farther from Earth every year, which will eventually change how solar eclipses look.
Learn more โSound needs a medium like air to travel โ in the vacuum of space, even a supernova blast is completely silent.
Learn more โPluto orbits the Sun once every 248 Earth years, and it was discovered in 1930 โ it hasn't completed a single full lap yet.
Learn more โYour brain makes up about 2% of your body weight but burns roughly 20% of your daily energy โ even when you're doing absolutely nothing.
Learn more โBone tissue is constantly broken down and rebuilt โ your entire skeleton renews itself on a cycle of several years to over a decade.
Learn more โProprioception is the sense of your own body's position in space, working without any help from your eyes โ it's how you know where your limbs are, even without looking at them.
Learn more โPeople with low competence in a field often overestimate their own skill the most, simply because they lack the knowledge needed to spot their own gaps.
Learn more โAdult giraffes can function on as little as 30 minutes to 2 hours of sleep a day, usually broken into short, minutes-long naps.
Learn more โThe structure of a kangaroo's legs, its powerful tail, and the way it moves rule out backward motion entirely โ which is why it even ended up on Australia's coat of arms as a symbol of progress.
Learn more โHMHS Britannic, the Titanic's twin ship converted into a hospital vessel during World War I, sank in 1916 after hitting a naval mine.
Learn more โThe Great Chicago Fire of 1871 destroyed most of the city, though the popular story of a cow kicking over a lantern is almost certainly a myth.
Learn more โThe 1881 fire at the Ringtheater in Vienna, which killed hundreds of theatergoers, led to the introduction of modern fire safety regulations in theaters worldwide.
Learn more โIn the summer of 1858, the stench of untreated sewage in the Thames got so bad that MPs considered relocating Parliament.
Learn more โAfter the invasion of Poland in September 1939, the Western Front stayed eerily quiet for months in what became known as the "Phony War."
Learn more โDuring the Siege of Mafeking in the Second Boer War, a cut-off British garrison printed its own banknotes and stamps to keep the townโs economy running.
Learn more โThe natural potassium in bananas contains just enough of a radioactive isotope that physicists invented a joke unit called the "banana dose."
Learn more โGallium has a melting point lower than body temperature, so it turns liquid the moment you hold it.
Learn more โA cornstarch-and-water mixture is a non-Newtonian fluid that hardens under sudden force but flows like a liquid when moved slowly.
Learn more โ"Salvator Mundi," attributed to Leonardo da Vinci, sold at auction for over $450 million.
Learn more โThe word "dollar" traces back to the "Joachimsthaler" โ a silver coin minted in the 16th century in Jรกchymov, in what is now the Czech Republic.
Learn more โThe Italian bank Monte dei Paschi di Siena has operated continuously since 1472, more than twenty years before the discovery of America.
Learn more โChina's Song dynasty introduced official paper currency back in the 11th century โ Europe didn't catch up for several hundred years.
Learn more โThe "left-digit effect" makes people judge a price mainly by its first digit, tuning out the rest of the number.
Learn more โBillions of dollars in US savings bonds sit unclaimed because owners lost the paperwork or simply forgot they existed.
Learn more โGeneral Sherman, a giant sequoia in California, is recognized as the single organism with the largest wood volume on Earth.
Learn more โLake Hillier on an Australian island stays an intense shade of pink all year round, no matter which angle you view it from.
Learn more โOymyakon in Siberia is one of the coldest permanently inhabited places on Earth, where winter temperatures regularly drop below minus 50 degrees Celsius.
Learn more โLake Cerknica in Slovenia regularly dries up and refills thanks to hidden underground karst channels beneath its bed.
Learn more โChile's Atacama Desert is one of the driest places on Earth โ in some regions, rainfall has been practically nonexistent for decades.
Learn more โThe Cherrapunji and Mawsynram region in India ranks among the wettest places on Earth, where annual rainfall is measured in meters, not millimeters.
Learn more โThe Giant's Causeway in Northern Ireland is a formation of thousands of near-perfect hexagonal basalt columns created by ancient volcanic activity.
Learn more โThe Dead Sea is so salty that the human body floats on its surface almost effortlessly, while the basin holding it keeps dropping lower every year.
Learn more โThat fleeting "I have already lived this" feeling hits most people at some point, but neuroscientists still argue over what causes it.
Learn more โA typical cat purr falls in the 25-150 Hz range, overlapping with frequencies studied for stimulating tissue regeneration.
Learn more โThe 1989 announcement of "cold fusion" caused a worldwide sensation before other labs failed to reproduce the results.
Learn more โA light-year sounds like a unit of time, but it's actually the distance light travels in a year โ almost 9.5 trillion kilometers.
Learn more โUp and down are just a local side effect of Earth's gravity โ out in open space, those words simply don't apply.
Learn more โHearing laughter activates the smiling regions of your brain before you've consciously judged whether anything is actually funny.
Learn more โWhat we call "taste" is mostly smell, detected through the back of the throat โ your tongue alone only picks up a handful of basic sensations.
Learn more โContagious yawning is likely tied to social empathy โ and simply reading the word "yawn" can be enough to trigger one.
Learn more โThe epidermis is constantly flaking off and renewing itself โ your entire outer skin layer turns over roughly once a month.
Learn more โAfter Tutankhamun's tomb was opened in 1922, the rumor of a curse spread further than the actual death data ever did.
Learn more โThe popular myth of flowing glass actually comes from an old manufacturing technique, not the material being liquid on a human timescale.
Learn more โA phenomenon known as the "IKEA effect" shows that putting our own labor into a product makes us value it higher than its actual market worth.
Learn more โFingernails grow roughly two to three times faster than toenails, and the gap has puzzled researchers for decades.
Learn more โ