All declassified documents — sorted by date
In 1693, Isaac Newton spent months unable to sleep, eating poorly, and writing letters accusing friends of harming him. He had worked with alchemy for years, he…
On 27 August 1859, Edwin Drake struck oil at Titusville, Pennsylvania. The well was about 21 metres deep and triggered an oil rush in the United States. Oil did…
On 20 March 1602, the States-General of the Netherlands created the Vereenigde Oostindische Compagnie, known as the VOC. Its charter gave the company a 21-year …
On 6 August 1945, Hiroshima was destroyed by an atomic bomb. Japan did not surrender at once. On 8 August, the Soviet Union declared war. In the early hours of …
In 1405, a Ming fleet left the Longjiang shipyards in Nanjing. Zheng He commanded hundreds of vessels, nearly 28,000 people, and a working system that included …
On 5 December 1914, the ship Endurance left South Georgia and entered the Weddell Sea. Ernest Shackleton, 27 crew members, and 69 sled dogs were on board. They …
In 2021, news reports said that Jeff Bezos and Yuri Milner were behind a new biotechnology company called Altos Labs. The company recruited leading scientists t…
Around the first century, in Alexandria in Roman Egypt, Hero described a metal sphere that turned when water inside it was heated. Steam escaped through two ben…
On July 14, 2015, the New Horizons spacecraft flew past Pluto at a distance of about 12,500 kilometres. The images sent back to Earth showed a world that was no…
At Susa, in what is now southwestern Iran, archaeologists found more than 1,400 small clay tablets dated to roughly 3100–2900 BCE. The signs on them are known a…
On 2 March 1972, NASA launched Pioneer 10 away from Earth. Attached to its body was a gold-anodized aluminium plaque showing a man, a woman, a map of the Solar …
On 6 September 1522, the ship Victoria reached Sanlúcar de Barrameda in Spain. Only 18 men remained aboard. They had left Spain almost three years earlier with …
On 17 April 1936, twenty-seven London schoolboys and their teacher, Kenneth Keast, walked across Schauinsland in southern Germany. Temperatures fell below freez…
On 12 April 1888, Ludvig Nobel died in Cannes. A French newspaper mistakenly published an obituary for his brother Alfred. The famous story says the headline ca…
In ancient Egypt, priests kept spell books, clay figures, and formulas meant to heal, protect the living, or curse an enemy. The [British Museum Magazine](https…
On 30 December 1600, Queen Elizabeth I signed a charter for 215 London merchants. The new body was called the “Governor and Company of Merchants of London Tradi…
In the late 1880s, the United States faced a technical choice that would decide how cities received electricity. Thomas Edison sold direct current, while George…
In French-ruled Vietnam, salt was not only kept in kitchens. It appeared in tax ledgers, customs warehouses and checkpoints on mountain roads. Coastal salt work…
In 1985, Michael Jackson paid $47.5 million for ATV Music Publishing. The catalogue contained nearly 4,000 songs, including most of the songs John Lennon and Pa…
On 9 December 1921, General Motors engineer Thomas Midgley Jr. added a new compound to an engine that was knocking. Tetraethyl lead stopped the noise and allowe…
On 1 January 1804, Jean-Jacques Dessalines declared that Saint-Domingue was no longer a French colony and restored the name Haiti. The declaration followed the …
Mount Sinai, 40 days in the desert. Moses climbs the mountain alone, eats and drinks nothing, and returns with a face so bright that the Israelites avoid lookin…
In 214 BCE, the Qin state began linking older frontier walls after Qin Shi Huang unified China. Sections built by Qin, Zhao, and Yan were repaired and extended …
In 1886, pharmacist John Stith Pemberton sold a syrup in Atlanta as a tonic for the nerves and stomach. Its early recipe used coca-leaf extract and kola nut. Co…
On July 9, 1997, a hiker near Indian Lake in New York caught his foot on a piece of metal showing through the soil. He was far from a road or marked trail. Afte…
Across the cliffs of south-western China, hundreds of wooden coffins rest in cracks high above the ground. They are not buried in soil or placed in a cemetery b…
On 11 March 2011, an earthquake and tsunami struck Japan’s Tōhoku region. More than 18,000 people died or remained missing, the Fukushima Daiichi nuclear plant …
Before paper, a long Chinese document had to be written on bamboo slips or silk. Bamboo was heavy, awkward, and vulnerable to rot. Silk was easier to carry but …
On the evening of 21 October 1978, twenty-year-old pilot Frederick Valentich took off from Moorabbin Airport near Melbourne in a Cessna 182L registered as VH-DS…
On 18 November 1978, U.S. Congressman Leo Ryan arrived at a small airstrip in Guyana to take people home from Jonestown. Families had told him that relatives we…
Grosse-Île sits in the Saint Lawrence River, about 50 kilometres from Quebec City. From the nineteenth century onward, immigrant ships stopped there for inspect…
Before dawn on 20 September 1977, people in Petrozavodsk saw a huge light moving across the sky. It looked like a glowing disc, then like a bright jellyfish. It…
On September 4, 1622, a Spanish fleet left Havana carrying silver, gold, and gems from the Americas to Europe. Less than two days later, a hurricane broke the f…
On the morning of July 2, 1951, landlady Pansy Carpenter went to Mary Reeser’s apartment in St. Petersburg, Florida. The doorknob was unusually hot. When the do…
On September 29, 1915, a Category 4 hurricane struck the Lake Pontchartrain area of Louisiana. Winds reached about 145 miles per hour, water rose more than four…
Apollo astronauts took thousands of photographs on the Moon. In many of them, the sky is completely black and not a single star appears. It is easy to think tha…
A nuclear missile system does not normally become “offline” at many positions at once. Each Minuteman missile had its own power supply, communications lines, an…
On an evening in October 1969, while he was governor of Georgia, Jimmy Carter stood with a group of guests at a club in Leary. He saw a bright object in the dis…
In 2003, heavy rain opened a sinkhole beneath the Temple of the Feathered Serpent at Teotihuacan in Mexico. Archaeologists found the entrance to a tunnel about …
On June 24, 1947, private pilot Kenneth Arnold was flying near Mount Rainier in Washington State. He reported seeing nine bright objects moving in formation at …
Before dawn on 21 July 1968, El Fausto left El Hierro to return to Tazacorte on La Palma. The route was roughly one hundred kilometres, and three men aboard had…
In the western Tibetan Plateau, stone tombs stand on hilltops, settlements lie far from modern villages, and ritual sites preserve traces of a society that disa…
In 2025, the Hong Kong Police Organized Crime and Triad Bureau worked with authorities in Guangdong and Macao in Operation Thunderbolt. More than 4,000 people w…
On October 28, 2021, Facebook changed its corporate name to Meta. Mark Zuckerberg said the company would move from 2D screens toward the “metaverse”, a 3D space…
In 1679, more than 3,000 people sailed on roughly 50 boats from southern China to Đàng Trong. They were Ming loyalists who refused to serve the Qing, led by Trầ…
On the evening of 15 August 1977, Ohio State University’s Big Ear telescope scanned the sky as usual. It was not taking pictures. It was listening to narrow rad…
Before paper became common, a report sent to a Chinese emperor could require thousands of bamboo strips. One account says the scholar Dongfang Shuo used more th…
From above, the plain north of Xi’an looks like farmland broken by square hills with straight slopes and flat tops. A driver may mistake them for natural mounds…
In 1570, the Spanish official Diego García de Palacio passed through Honduras and recorded the great ruins of Copán. The city had already been abandoned for cen…
A book almost as large as a door sits behind glass at the National Library of Sweden. Codex Gigas means “giant book”. It is about 92 centimetres high, 50 centim…
Wolf Grigoryevich Messing was born on 10 September 1899 in Góra Kalwaria, near Warsaw, to a devout Jewish family. His father wanted him to study theology. The b…
In 1533, Spanish forces entered Cusco, the capital of the Inca Empire. At the centre of the city stood Coricancha, the Temple of the Sun. Its stone walls were f…
In 1743, a man arrived in England calling himself Count Saint-Germain. He openly said that Saint-Germain was not his real name, yet he refused to give his real …
At about 7:15 p.m. on September 12, 1952, four boys were playing near Flatwoods Elementary School in Braxton County, West Virginia. A red-yellow streak crossed …
In 1982, a gas pipeline caught fire in the Tyumen region of Siberia. The area stood near the enormous gas fields the Soviet Union needed to sell energy to Europ…
On the night of December 29, 1972, an Eastern Air Lines Lockheed L-1011 flew from New York to Miami. There were 163 passengers and 13 crew members on board. Dur…
On the desert of southern Peru, a monkey tens of metres long lies beside straight lines that run so far that a person on the ground cannot see them as a whole. …
At 7:35 a.m. on July 1, 1940, a shipment waited at Halifax harbour. On paper, it was fish. The dock was sealed, armed guards stood around it, and outsiders were…
In August 1945, as Japanese forces withdrew from Manchuria, a compound at Pingfang, south of Harbin, was destroyed in a matter of days. Buildings were burned, r…
On Gozo, one of Malta’s islands, stands a stone complex called Ġgantija. The name comes from “ġgant,” the Maltese word for giant. The two temples were built aro…
In Arizona’s Grand Canyon, rock about 520 million years old rests directly on metamorphic basement more than 1.7 billion years old. There is no continuous set o…
In Exodus chapter 34, Moses comes down from Mount Sinai after forty days and forty nights without bread or water. He carries two stone tablets inscribed with th…
On July 6, 1892, barges moved along Pennsylvania’s Monongahela River toward the Carnegie Steel works at Homestead. Aboard were roughly three hundred Pinkerton a…
In 1933 or 1934, Alberto Tulli, the curator responsible for the Egyptian collection at the Vatican Museums, was said to have seen a fragment of papyrus in a Cai…
Look at the back of a United States one-dollar note. An unfinished pyramid stands on the left, an eye inside a triangle floats above it, and rays spread around …
On 12 October 1492, Christopher Columbus’s ships sighted Guanahani in the Caribbean. Columbus gave the island a new name, raised the flag of the Spanish crown, …
On 12 April 1961 Yuri Gagarin sat inside Vostok 1 at Baikonur. The spacecraft made one orbit of Earth in 108 minutes and returned. The Soviet Union announced th…
At the end of August 30 BCE, Alexandria fell to Octavian. Mark Antony had died after hearing the false news that Cleopatra had killed herself. The queen was bei…
In 1917, in Orange, New Jersey, teenagers sat at long tables and painted tiny numbers on watch dials with a luminous mixture. The job was clean, paid well for y…
On January 18, 2017, the CIA placed more than 12 million declassified pages online. Before that release, many records could be viewed only at four computers in …
Inside Ranmasu Uyana in Anuradhapura stands a circular carving on a low rock face. Local usage calls it Sakwala Chakraya, a name close to “cosmic cycle.” The ca…
On December 29, 1610, Palatine György Thurzó led officials and soldiers to Čachtice Castle, now in Slovakia. Elizabeth Báthory, a wealthy widow from a powerful …
The Rohonc Codex is catalogued as K 114 in the Library of the Hungarian Academy of Sciences. It has 224 leaves, measures about 12 by 10 centimetres, and contain…
In 1942, while Britain was preparing for a war for national survival against Nazi Germany, Porton Down scientists brought sheep to Gruinard Island off Scotland’…
On March 11, 2011, at 2:46 p.m., a massive earthquake struck off northeastern Japan. Six reactors at Fukushima Daiichi were in different states: Units 1, 2, and…
In 1346, the port city of Caffa on the Black Sea was under siege by the Golden Horde. Caffa was a Genoese trading colony, now Feodosia in Crimea. Outside the wa…
On the afternoon of 27 January 1967, three astronauts sat inside the Apollo command module at Launch Complex 34 at Cape Kennedy. Virgil “Gus” Grissom, Edward Wh…
Shortly after midnight on 30 July 1945, the heavy cruiser USS Indianapolis was sailing alone between Guam and Leyte. It had just completed a secret trip to Tini…
When travellers enter Denver International Airport, they see a white roof shaped like snow-covered mountains, huge paintings about war and a blue horse almost t…
In 1994, the Sherman family moved to a ranch in Utah's Uintah Basin. They described a large wolf attacking their livestock without falling after several shots, …
Stand on Salisbury Plain in southern England as the summer sun rises. An earthwork avenue leads toward a stone circle. Two upright stones hold a lintel above th…
In the early hours of 26 April 1986, Pripyat in northern Ukraine was still asleep. A few kilometres away, Unit 4 at the Chernobyl nuclear power plant was being …
Before dawn on 25 February 1942, Los Angeles went dark under an air-raid order. Sirens sounded across the city, searchlights swept the sky, and anti-aircraft gu…
On the eastern bank of the Nile, about 300 kilometres south of Cairo, a city lies almost abandoned in the desert. The ancient Egyptians called it Akhetaten, “th…
At 7:15 a.m. on 12 June 1962, an Alcatraz guard made the routine inspection of the cells. Three beds appeared occupied, but the men in them had been gone for ho…
At about 7 p.m. on 21 August 1955, Billy Ray Taylor walked to the well behind the Sutton farmhouse near Kelly, Kentucky. He saw a glowing object fly low and des…
On a mountainside above Peru’s Urubamba Valley, six pink-granite blocks stand together on Temple Hill. The largest rises more than four metres. Its face is flat…
On 1 September 1909, America read Frederick Cook’s claim that he had reached the North Pole on 21 April 1908. Five days later, Robert Peary sent a telegram sayi…
On 19 May 1845, HMS Erebus and HMS Terror left Greenhithe, England. The two ships carried 134 people: Sir John Franklin, Royal Navy officers, sailors, engineers…
On 29 October 1969, a computer at UCLA sent the first characters to a computer at the Stanford Research Institute. The network had only four nodes. It was built…
William Shakespeare was born in Stratford-upon-Avon in 1564, married in 1582, had children, and later appeared in London as an actor and playwright. From 1585 t…
On the morning of 22 May 1999, Carl Herbert Landers left a camp near Lake Helen to climb Mount Shasta in California. He was 69, an experienced hiker and distanc…
On 11 February 1650, René Descartes died in Stockholm after several months working for Queen Christina of Sweden. He was only 53. The royal household and its do…
Every night, people see the same face of the Moon. During a total solar eclipse, the lunar disk almost exactly covers the Sun: the Sun is about 400 times wider …
On the night of 25 January 1967, Betty Andreasson was in the kitchen of her home in South Ashburnham, Massachusetts, with her parents and seven children. The li…
On the afternoon of 9 December 1965, a blue light crossed the sky over the eastern United States and Canada. People in several states saw the fireball at the sa…
On the night of 1 October 1948, Lieutenant George F. Gorman flew his P-51 Mustang back toward Hector Airport in Fargo, North Dakota. The sky was clear, the foot…
On 12 August 1944, Joseph P. Kennedy Jr.’s aircraft exploded over the English Channel during a bombing mission. He was 29 and had been chosen by his father as t…
In May 1951, two British diplomats, Guy Burgess and Donald Maclean, disappeared. They were not stopped at a border, left no message, and did not travel alone. T…
On November 4, 1922, Howard Carter’s team found steps beneath the sand in Egypt’s Valley of the Kings. Three weeks later, Carter cut a small hole in the sealed …
At the end of January 1945, as the Red Army approached Auschwitz, Josef Mengele gathered papers, research material, and anything that could help him disappear. …
On 26 August 1946, the United States Navy planned to send a huge force to Antarctica. Thirteen ships, 33 aircraft, and about 4,700 people were assigned to build…
On 20 July 1969, hundreds of millions of people watched Neil Armstrong step onto grey ground. He said it was one small step for a man and a giant leap for manki…
On 30 April 1945, Adolf Hitler and Eva Braun were inside the command bunker beneath the German Chancellery in Berlin. Soviet troops were closing in. Hitler had …
On 29 May 1925, at a place Percy Fawcett called Dead Horse Camp in Brazil’s Mato Grosso, the British explorer sent his final message to his wife Nina. He said t…
On the morning of 13 January 1996, people around Varginha in Minas Gerais, Brazil, reported a large object flying low and descending through white smoke. A univ…
On the evening of 27 July 1890, Vincent van Gogh returned to the Auberge Ravoux in Auvers-sur-Oise, north of Paris, with a bullet in his chest. He did not bring…
On the morning of 2 July 1937, Amelia Earhart and navigator Fred Noonan took off from Lae, New Guinea, for Howland Island in the central Pacific. Howland was on…
On the morning of 19 November 1961, Michael Rockefeller tied two empty fuel cans to his body and jumped from a capsized boat at the mouth of the Betsj River in …
In early 2015, a German reporter received a call from a person who used only the name “John”. He would not meet, would not speak on an ordinary phone line, and …
On 16 October 1923, Walt Disney signed a four-page contract in his uncle’s Los Angeles home. It allowed Walt and Roy Disney to produce the Alice Comedies. Nobod…
Around 1177 BCE, major cities around the Mediterranean and the Near East began to burn, empty, or lose their written institutions. Hattusa, the Hittite capital …
On 5 December 1872, Captain David Morehouse saw a sailing ship drifting off course between the Azores and Portugal. It was the Mary Celeste, sailing from New Yo…
In 1913, former U.S. president Theodore Roosevelt and Brazilian explorer Cândido Rondon travelled through the Amazon to map an uncharted river. Accounts of the …
In April 1938, a German team crossed India and Sikkim to enter Tibet. It was led by zoologist Ernst Schäfer and included anthropologist Bruno Beger, geophysicis…
In 1912, American trader Fred Meyer Schroder travelled through Shaanxi with a local Buddhist monk. He wrote that he saw a large grey-white pyramid surrounded by…
On 18 September 1793, George Washington wore Masonic regalia and laid the cornerstone of the United States Capitol in Washington. Lodges from Maryland, Virginia…
In Book IV of Herodotus, written in the fifth century BCE, there is a story about offerings sent to Apollo. The Hyperboreans sent them south. The offerings pass…
At about 4 a.m. on 20 September 1977, the sky over Petrozavodsk in the north-western Soviet Union lit up. An object like a giant star appeared, sent shafts of l…
On 4 April 1922, neighbours broke into an isolated farm near Waidhofen in Bavaria, Germany. They found six dead people: Andreas Gruber, his wife Cäzilia, their …
At the end of the Second World War, as the Red Army advanced from the east and the Allies closed in from the west, Nazi Germany was not only withdrawing troops.…
On May 20, 1967, Stefan Michalak left a motel at Falcon Lake, Manitoba, at 5:30 in the morning. He was a Polish-born industrial mechanic who liked searching the…
On July 24, 1989, Hokkaido police used a helicopter to search for two hikers lost in Daisetsuzan National Park. From the air they saw a giant SOS sign made from…
In 1942, Germany’s A-4 rocket rose from Peenemünde and fell onto a target hundreds of kilometres away. It became known as the V-2, the first ballistic missile u…
On May 9, 2001, cameras filled the main room of the National Press Club in Washington, D.C. More than twenty people with backgrounds in the military, intelligen…
In the granite hills north of Bihar, India, caves were cut directly into single blocks of rock. Inside Sudama Cave, curved walls are polished enough to reflect …
In 1987, archaeologists found a settlement on the steppe south of the Ural Mountains, in Russia’s Chelyabinsk Oblast. From the ground, Arkaim looked like earth …
Why a piece of film retains traces of the whole scene, and how that led to the holographic-universe theory.
The quantum-immortality story begins with quantum physics and turns into a question about consciousness.
From mice losing fear of cats to gut microbes: what this story actually claims.
From Hans Kammler to a concrete structure in Silesia, how the Bell story is told.
The story begins with North American mounds and bones said to have been sent to Washington.
On 21 June 1947, tugboat operator Harold Dahl said he saw six round objects above Maury Island in Washington State. One object had a hole in its centre and drop…
If ancient builders knew how to cast stone, the pyramid problem shifts from hauling stone to controlling materials.
If too many numbers must be right at once, who set them?
When brain signals arrive before the feeling of intention, who actually makes the decision?
If memory appears with a brain, can it still prove a past?
A brain receiving perfect signals and a question no one inside the system can answer alone.
A creature that does not merely hide in the loch, but moves through a water system people have not fully seen.
A reading of the sky as a network of currents rather than matter falling only under gravity.
From surveys to the question of whether repeated visitors exist beyond the brain.
The Chronovisor is told as a screen for viewing what history does not want shown.
A 27-kilometer machine and the story that the world moved to another version.
A real research institute and the question of using psychology to steer society.
A human–ape idea moved from a science congress to an expedition in Africa.
A hill in Visoko told as an ancient structure built at landscape scale.
On 27 March 1989, the Soviet Phobos 2 spacecraft was orbiting Mars and preparing to approach its moon Phobos when mission control lost contact. The spacecraft h…
A story that overturns European history, beginning with ten skipped days in 1582.
Not only an airport: the story of infrastructure layers passengers cannot see.
A CBDC is not automatically a control tool, but its architecture determines how far digital money can be made conditional.
A film shows a city under camera surveillance. A series makes health passports, drones, automated war, or a cashless society seem ordinary. Years later, the pub…
The Georgia Guidestones were a 1980 granite monument in Georgia carrying ten instructions about population, reproduction, language and order after catastrophe. …
Savers often think a bank takes one person’s money and lends it to another. In 2014, the Bank of England stated the opposite: when a bank makes a loan, it simul…
At dawn on June 18, 1982, Roberto Calvi’s body was found hanging beneath Blackfriars Bridge in London. Bricks and mixed currency were in his pockets. Calvi was …
On April 14, 1912, the ship called Titanic struck an iceberg in the North Atlantic. Hours later it sank, killing more than 1,500 people. Among those who died we…
In 1973, David Rockefeller founded the Trilateral Commission to bring policy makers, business leaders, media figures, and academics from North America, Europe, …
At 64 High Street in New Haven stands a windowless stone building that Yale students call the Tomb. Inside, Skull and Bones meets away from public view. Its emb…
In 1987, during the nationally televised Iran-Contra hearings, Representative Jack Brooks asked Colonel Oliver North a question that was not about arms sales to…
In the autumn of 1976, Peter Byrne of the Bigfoot Information Center sent a hair sample to the Federal Bureau of Investigation. Byrne did not ask the FBI to hun…
In 1994, Canadian writer Serge Monast released a presentation titled Project Blue Beam (NASA). He was not describing a single UFO incident. He described a four-…
In 2009, Fiona Broome said she met many people who believed Nelson Mandela had died in prison in South Africa during the 1980s. They did not remember a single l…
The night sky contains hundreds of billions of stars in the Milky Way. NASA has confirmed thousands of planets beyond our solar system, including many in region…
At about 3,850 metres on Bolivia’s Altiplano, near Lake Titicaca, a broken stone platform sits among huge blocks. This is Puma Punku, a temple complex within th…
Exodus describes the Ark of the Covenant with unusually exact construction details. It is a chest of acacia wood, two and a half cubits long, one and a half cub…
At the eastern tip of Long Island, New York, Camp Hero is now a coastal state park. A massive radar tower still rises above the woods and old roads. Its AN/FPS-…
On the evening of March 13, 1997, residents across Arizona began reporting lights moving south toward Phoenix. The earliest call preserved by the National UFO R…
Around 12,800 years ago, Earth was warming after the Ice Age when the climate of the Northern Hemisphere reversed sharply. Temperatures in Greenland dropped, ic…
In 1971, President Richard Nixon ended the fixed conversion of dollars into gold. The move broke the foundation of Bretton Woods. Other countries could no longe…
Each summer, a redwood forest in Sonoma County, northern California closes to outsiders for roughly two weeks. The land belongs to the Bohemian Club, a private …
In May 1954, around fifty politicians, business leaders, academics, and journalists from Europe and North America met at the Bilderberg Hotel in Oosterbeek, Net…
In November 1910, six men left New Jersey by train for Jekyll Island, a private island off Georgia. They avoided using their real names at the station, told the…
In March 1967, ten Minuteman missiles at Echo Flight, Malmstrom, lost alert status almost together. Accounts of an unidentified object outside the base made the…
In February 1959, nine hikers died in the northern Urals after cutting their tent from inside and running into the snow. Documents, injuries, and long Soviet si…
The covert effort supporting the Contras in Nicaragua used transport networks, front companies, and off-books money. Investigation records show why drug-traffic…
In November 2004, radar crews, F/A-18 pilots, and infrared cameras from the Nimitz strike group all recorded a white Tic Tac-shaped object. The different kinds …
WTC 7 was not struck by an airplane but collapsed at 5:20 p.m. on September 11, 2001. Its straight-down appearance, early steel removal, and debate around NIST …
On August 4, 1964, reports of a second attack on U.S. ships led to a resolution that expanded the Vietnam War. Later official Navy history confirmed that the at…
On November 22, 1963, John F. Kennedy was shot in Dealey Plaza. The route from Lee Harvey Oswald to CIA, FBI, Cuba, and Mafia records is why the lone-gunman sto…
Around 500 BCE, people in Peru’s Casma Valley built a line of thirteen earthen and stone towers along a ridge. The towers rise, fall, and rise again, creating a…
Archaeologists have recovered hundreds of nearly round stone spheres from the Diquís Delta in southern Costa Rica. Some are only a few dozen centimetres wide; t…
Between about 4000 and 2500 BCE, people in Malta carved a group of chambers below ground at Paola, near modern Valletta. The place is known as the Hal Saflieni …
A city built on a coral reef turned waterways into streets, borders, and gates for a ruling elite.
On the hillside above Cusco, Peru, where the Inca built intensively in the 15th century, the walls of Sacsayhuaman join stones so large that one person could no…
Inside the Temple of Hathor at Dendera, Egypt, a carved scene shows a serpent inside a large oval object. The object rests on a djed pillar, while divine figure…
Tassili n'Ajjer is a rocky plateau in southeastern Algeria, close to the borders of Libya, Niger, and Mali. UNESCO records more than 15,000 drawings and engravi…
At Ollantaytambo in Peru, where the Inca built on a large scale in the 15th century, red porphyry blocks still lie along the route between Kachiqhata quarry and…
Studies of ADAR, potassium channels, and temperature show how RNA editing can alter neural proteins in cephalopods without changing the underlying DNA.
In 2017, microbiologists used the term virosphere for the entire world of viruses and virus-like genetic elements on Earth. Most have never been grown in a labo…
In the nineteenth century, Louis Pasteur showed that many tartrate crystals come in two mirror forms. This property is called chirality. The two forms have the …
In 2009, Paul Davies and Charley Lineweaver asked a precise question: if a second branch of life had appeared on Earth and used different chemistry, would we re…
Small mineral pores under the sea may have held chemicals together long enough for life to begin.
In June 2019, the Curiosity rover measured a methane spike of about 21 parts per billion in Gale Crater. The usual background was much lower. The gas fell again…
A small shadow can be labeled noise even when it belongs to an entire world orbiting a planet.
In 1999, scientist David Stevenson published a model that reverses the usual search for life. An Earth-sized planet could be thrown out of its star system by a …
By the late 1970s, astronomers had found that the Milky Way and many nearby galaxies were not merely following the expansion of the universe. They also had a sh…
A brief winter beam leads into the story of a stone structure built to wait for the right time.
A ring of ditches, timber posts, and three gates turned the Sun’s position into an appointment for an entire settlement.
Satellite images turned faint lines across Bolivia into a network invisible from the ground.
Enter Great Zimbabwe through a narrow passage rather than a main gate. Stone rises above your head on both sides. The path curves onward, sightlines are broken …
Tayos Cave lies in the rainforest of southeastern Ecuador, where the Shuar have long known its entrances, watercourses, and bird seasons. Oilbirds live in the d…