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Feather trapped in dinosaur droppings provides new clues about why some birds survived extinction

10 September 2026 at 16:59

One day in 2016, paleontologist David DeMar got very lucky. While examining the ground at Hell Creek in the U.S. state of Montana, he found a fossil the size of a golf ball. It was a coprolite — fossilized feces — from a theropod (probably a juvenile Tyrannosaurus rex or a Nanotyrannus). Inside the coprolite was a feather from an aquatic bird (not related to modern birds). With a high degree of confidence, researchers believe the bird spent the final moments of its life in the digestive tract of a teenage T. rex.

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© Andrey Atuchin

An illustration of a tyrannosaur hunting an ancient aquatic bird.

Romans Believed Lightning Was Sacred and Buried Them as Offerings to God Summanus: A 1,900-Year-Old Inscription Just Proved It

10 September 2026 at 17:18
In a quiet corner of Hadrian’s Villa, wedged between the so-called Amphitheater and a low bench of volcanic tufa rock, sits a marble slab measuring roughly 40 by 35 centimeters (about 16 by 14 inches). It has not moved in some 1,900 years. Two lines of carved capital letters explain why archaeologists are excited: FVLGVR […]

Los romanos enterraban los rayos como si fueran cadáveres sagrados dedicados al desconocido dios Sumano: lo confirma un hallazgo en la villa de Adriano

En un rincón de Villa Adriana, entre el llamado Anfiteatro y un banco de toba, hay una losa de mármol de apenas 40 por 35 centímetros que sigue exactamente donde la dejaron hace unos 1.900 años. Dos líneas de letras capitales bastan para explicar por qué el hallazgo interesa tanto a los arqueólogos: FVLGVR SVBMANIVM, […]

Scientists Solve a 1,700-Year-Old Jewelry Mystery Found in a Germanic Princess Grave on Rome’s Doorstep

10 September 2026 at 16:00
In 2022, medical CT scanners let Egyptologists peer inside sealed sarcophagi without ever lifting a lid. In 2026, the same basic technology — pointed not at a pharaoh’s mummy but at two silver brooches from a German field — has just done something similar for archaeology north of the Roman frontier. The brooches came out […]

Descubren cómo se hicieron las asombrosas joyas sin parangón en la Europa central de su tiempo encontradas en la tumba de una princesa germana del siglo III

En 1837, unas obras de carretera al noreste de la aldea de Dienstedt, en la actual Turingia (Alemania), sacaron a la luz la tumba de una mujer que había vivido —y muerto— rodeada de un lujo que pocas germanas de su tiempo pudieron permitirse. Junto a su cuerpo aparecieron vasijas de cerámica y bronce, un […]

Nacho Valle, the gallerist who traded art for sardines in New York

10 September 2026 at 13:52
Nacho Valle, at Cooperativa del Mar, a cannery in Valencia.

Nacho Valle is a restless figure, a distinctive entrepreneur. When he was young he ran a hangout with a friend in the old El Carmen neighborhood that became a benchmark of Valencia’s alternative music and rock and roll scene, Túrmix. After his father’s death he took over the Valle Ortí art gallery. He learned the trade, toured the world visiting fairs, introduced contemporary art into his program and managed to get into the ARCO selection in Madrid. Then the 2012 economic crisis hit, coinciding with his own personal crisis and a certain weariness with a city whose collectors are few in number and mostly prefer to buy abroad. So he left. He needed a change.

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Some of the products Lata offers.The four partners in Lata in New York, in 2024: From right to left: Nacho Valle, Xavier Gallego (the brand's designer), Vicent Sendra, and Dani Viedma.Canned goods sold in the U.S. by Lata, in a photo provided by the company.

A Bronze Age Tribe in Poland Was Already Eating a Cereal Brought from China before Tutankhamun was even born

10 September 2026 at 11:28
Around 1590 BCE — more than 800 years before Rome was founded, and before Tutankhamun was even born — a small number of people in what is now southeastern Poland started eating a cereal that had never grown in their fields. It wasn’t a local crop, and it didn’t belong to any plant known elsewhere […]

Una tribu de la Edad del Bronce en Polonia ya comía un cereal traído de China cuando Roma ni siquiera se había fundado

Hacia el año 1590 a.C., más de ochocientos años antes de que Roma existiera siquiera como aldea y con Tutankamón todavía sin nacer, un puñado de personas en el sureste de Polonia empezó a comer un cereal que no era suyo. No procedía de los campos que sus vecinos llevaban generaciones cultivando ni de ninguna […]

Forget Beer: Ice Age Hunters Were Getting High 12,000 Years Earlier — With Betel Nuts

10 September 2026 at 10:08
Two skeletons from the Indonesian island of Sulawesi had something strange going on in their mouths. Not cavities. Not the usual wear from a tough diet. Deep, rounded grooves cut into the teeth — a pattern no archaeologist had documented before, and one nobody could explain. The answer, published in Science Advances, pushes the known […]

Antes de la cerveza y mucho antes de la agricultura: así se drogaban los cazadores de la Edad de Hielo

Dos esqueletos hallados en la isla indonesia de Sulawesi tenían algo raro en la boca. No eran caries, ni el desgaste habitual de una dieta dura. Eran unos surcos profundos y redondeados en los dientes, un patrón que ningún arqueólogo había visto antes y que nadie sabía explicar. La respuesta, publicada en la revista Science […]

For 15 Years We Knew Denisovans Only From Their DNA. A Chinese Cave Just Gave Them an Arm

10 September 2026 at 09:00
In 2019, workers doing routine ecological restoration at a quarry in China’s Yunnan province hit something under the soil: bones and stone tools. Nobody realized at the time that this unassuming hole — known as Bianfu Cave, “bat cave,” after its former residents — would turn out to hold the largest collection of Denisovan remains […]

Solo los conocíamos por pequeños huesos: una cueva china revela por fin cómo era el brazo de los denisovanos, nuestro pariente más esquivo

En 2019, un grupo de operarios que trabajaba en la restauración ecológica de una cantera en la provincia china de Yunnan tropezó con huesos y herramientas de piedra enterrados bajo la tierra. Nadie sospechaba entonces que aquel agujero, conocido como Cueva Bianfu (literalmente, «cueva de los murciélagos», por los animales que la habitaban), acabaría convirtiéndose […]

Héctor Socas, astrophysicist: ‘If a more advanced civilization contacted us, they should be more afraid of us than we are of them’

9 September 2026 at 19:32

Classes are over at Madrid’s Complutense University, and the corridors of the Faculty of Physical Sciences are nearly empty. But Héctor Socas, 53, a researcher at Spain’s Institute of Astrophysics of the Canary Islands, is spending part of an early summer morning in a meeting of the international AtLAST consortium, which is promoting the construction of a major radio telescope in Chile. Socas also directs the European Solar Telescope Foundation, one of Spain’s most ambitious astronomy projects.

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© Ismael Nasrollah (EL PAÍS)

Héctor Socas in Madrid.

How Venezuela pushed aside a local oil company to make way for new US partners: ‘They simply took the assets and disappeared’

9 September 2026 at 17:31

The heirs of Oswaldo Cisneros, once one of Venezuela’s richest men, received unusual news last April: strangers were touring their oil fields in the Orinoco Belt. On paper, they remained the legitimate operators of the assets, but it soon became clear that, even as those visits took place in plain sight, a plan was being put in motion to take the fields away from them.

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© MIRAFLORES PALACE (via REUTERS)

The LPG tanker Chrysopigi Lady carries a cargo of Venezuelan liquefied petroleum gas to the United States.

Scientists Just Watched an Adult T. Rex Walk — 66.5 Million Years Later

9 September 2026 at 16:26
Before 2025, paleontologists had confirmed exactly two footprints anywhere in the world made by an adult Tyrannosaurus rex — one in New Mexico, one in Montana. Isolated prints, each capturing a single instant, with no way to tell how the animal that made them actually moved. That changed with a discovery in the badlands of […]

Encuentran en Dakota del Norte el primer rastro de huellas fosilizadas de un T. rex adulto que permite reconstruir su paso hace 66,5 millones de años

Un equipo de paleontólogos ha documentado en el suroeste de Dakota del Norte el primer rastro continuo de huellas atribuido a un ejemplar adulto de Tyrannosaurus rex, un hallazgo que aporta datos inéditos sobre la locomoción y el comportamiento de este depredador emblemático del Cretácico superior. La investigación, publicada en el Journal of Vertebrate Paleontology, […]

Beyond Neptune, Icy Worlds Kept a 4.5-Billion-Year-Old Secret Nobody Expected

9 September 2026 at 15:15
For the first time, astronomers have pointed NASA’s two flagship space telescopes at the same patch of sky beyond Neptune and let them work as a team. Hubble handled the visible light. Webb handled the infrared. Together, they picked out 27 previously unknown trans-Neptunian objects, or TNOs — small, icy bodies that drift in the […]

En los confines del sistema solar los telescopios Hubble y Webb descubrieron 27 objetos transneptunianos que desafían los modelos de formación planetaria

Por primera vez en la historia de la astronomía, los dos grandes observatorios espaciales de la NASA, el Hubble y el James Webb, han trabajado de forma coordinada para desentrañar los secretos de los objetos transneptunianos (TNO, por sus siglas en inglés), esos cuerpos helados y diminutos que vagan más allá de la órbita de […]

Zhang Ziyu, the 2.23-meter World Cup sensation

9 September 2026 at 14:50
Zhang Ziyu, in a game against Italy, in an image provided by FIBA.

Seeing her seated is striking. When she stands, all you can do is look up. Zhang Ziyu is 19 and stands 2.23 meters tall (seven feet and three inches). She is the tallest professional women’s basketball player in history and the main attraction at the World Cup in Berlin, where she is competing with China’s national team, but as she herself points out, she’s still almost a child. “Everyone thinks I’m tough because I’m very tall, but I’m still a young girl, sometimes quite childish,” Zhang says in a FIBA documentary. It shows in her youthful face, in the jokes with her teammates and in the laughter as she runs through the mixed zone. And in her hobby of crocheting handicrafts that she gives to friends, like a stuffed elephant she spent two weeks sewing with yarn. When she recalls how she became a star, she says she misses her childhood bed full of rag dolls.

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¿Quieres contarnos algo o que investiguemos algún tema? Escríbenos aquí

28 January 2026 at 16:28

Ciudadano20 es la comunidad de los lectores de 20minutos para compartir informaciones, experiencias y testimonios sobre asuntos de interés general. Historias que deberían ser investigadas y conocidas por la sociedad. A través de este espacio, el diario refuerza su compromiso con el periodismo abierto y la escucha activa de la ciudadanía, integrando la voz de los lectores en el proceso informativo.

La iniciativa permite que cualquier persona haga llegar datos, relatos o alertas relacionados con una amplia variedad de temas, como actualidad social, consumo, movilidad, medioambiente o servicios públicos. Estas aportaciones pueden convertirse en un punto de partida clave para detectar problemas, visibilizar realidades poco conocidas o completar la cobertura de los hechos del día.

El equipo editorial de Ciudadano20 analiza cada envío con criterios periodísticos, contrastando la información y valorando su relevancia informativa. Cuando el contenido lo requiere, el periódico investiga los hechos, aporta contexto y consulta a las fuentes necesarias para ofrecer una información rigurosa y verificada a sus lectores.

De este modo, Ciudadano20 se consolida como un canal directo entre la ciudadanía y la redacción, fomentando una relación más cercana, transparente y colaborativa. La plataforma no solo amplía las fuentes informativas del diario, sino que también impulsa una forma de periodismo más participativa, en la que los lectores contribuyen activamente a la construcción de la actualidad.

Ciudadano20 es colaborativo para que cualquier lector pueda hacernos llegar reflexiones o datos relevantes que podamos contrastar para seguir informando cada día. Ya sea en el ámbito local, nacional, internacional o sobre cualquier materia de interés, envíanos tus comentarios a través del formulario y nosotros te leemos.

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