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Hidden details emerge from a medieval manuscript masquerading as a book cover

Hidden details emerge from a medieval manuscript masquerading as a book cover

Yahoo11-05-2025

Editor's note: A version of this story appeared in CNN's Wonder Theory science newsletter. To get it in your inbox, sign up for free here.
Sometimes, a great find is hiding right beneath one's nose in the humblest of places: on paper.
Indecipherable documents can languish in storage for years. Case in point: a treasure trove of lost letters written by Mary, Queen of Scots, that got a closer look in 2023.
After retrieving the letters from a box of unmarked documents, three researchers were able to decode the letters to uncover more about the queen's secrets.
Now, a separate new discovery adds weight to the old adage about not judging a book by its cover.
When library archivists at the University of Cambridge in England inspected the cover of a 16th century property record, they realized it was made of pages repurposed from a medieval manuscript.
Known as the 'Suite Vulgate du Merlin,' the rare 13th century fragments describe how a shape-shifting Merlin aided King Arthur early in his reign.
Rather than risk damaging the fragile, bound pages, a team of photographers and conservators at Cambridge have virtually unfurled the pages and uncovered hidden details in the text.
A new study is helping scientists unravel the fiercely debated origins of the king of the dinosaurs — and how it became a fearsome apex predator.
The direct ancestor of Tyrannosaurus rex arrived in North America by crossing a land bridge from Asia 70 million years ago, the latest research suggests.
Mathematical models showed that the size of tyrannosaurids such as T. rex rapidly increased as global temperatures dropped.
T. rex also climbed to the top of the food chain in the vacuum left by the extinction of another group of carnivorous dinos 90 million years ago.
Want to make the most of your morning cup of coffee as prices rise? University of Pennsylvania scientists tested a method to brew stronger coffee using fewer beans.
For thousands of years, the Haenyeo have dived off South Korea's Jeju Island to collect seafood from the ocean floor — and new evidence suggests they may have adapted for life underwater.
The women free divers descend as many as 60 feet (18 meters) multiple times a day, through pregnancy and old age, with no breathing equipment and only the aid of wet suits.
A new study has shown that the Haenyeo have a slower heart rate and unique genetic differences that enable them to cope with the pressures of free diving — as well as a trait that may even protect the unborn children of pregnant divers.
An underwater volcano located on a geological hot spot could erupt at any time — and scientists plan to publicly livestream the explosive event when it happens.
The Axial Seamount, as the volcano is known, is inflating with magma and causing earthquakes where two giant tectonic plates — the Pacific and Juan de Fuca plates — are spreading apart.
Yet life thrives in this seemingly hostile environment. Marine creatures can be seen clustering around hydrothermal vents called 'snowblowers' that billow out hot water and microbes — and they bounce back from scorching within months of an eruption.
Meanwhile, to mark his 99th birthday, broadcaster David Attenborough has released a new documentary called 'Ocean,' offering peeks at underwater species and revealing the threats facing what he calls 'the most important place on Earth.'
These new stories are worth your time:
— Uturuncu, a peak in the Central Andes mountain range, hasn't erupted for more than 250,000 years. Recent signs of activity like gas plumes suggest the 'zombie volcano' may be waking up, but experts aren't so sure.
— A Soviet-era spacecraft, called Cosmos 482, that malfunctioned while on a journey to explore Venus in 1972 likely crash-landed on Earth early Saturday, according to the European Space Agency. Here's where it may have landed.
— Researchers deciphered the author and title of a nearly 2,000-year-old scroll burned by the Mount Vesuvius eruption in 79 AD.
Like what you've read? Oh, but there's more. Sign up here to receive in your inbox the next edition of Wonder Theory, brought to you by CNN Space and Science writers Ashley Strickland, Katie Hunt and Jackie Wattles. They find wonder in planets beyond our solar system and discoveries from the ancient world.

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Moderna Receives U.S. FDA Approval for RSV Vaccine, mRESVIA, in Adults Aged 18–59 at Increased Risk for RSV Disease
Moderna Receives U.S. FDA Approval for RSV Vaccine, mRESVIA, in Adults Aged 18–59 at Increased Risk for RSV Disease

Associated Press

time9 hours ago

  • Associated Press

Moderna Receives U.S. FDA Approval for RSV Vaccine, mRESVIA, in Adults Aged 18–59 at Increased Risk for RSV Disease

Expanded indication builds on existing U.S. FDA approval of mRESVIA for adults aged 60 and older CAMBRIDGE, MA / ACCESS Newswire / June 12, 2025 / Moderna, Inc. (NASDAQ:MRNA) today announced that the U.S. Food and Drug Administration (FDA) has approved mRESVIA® (mRNA-1345), the Company's respiratory syncytial virus (RSV) vaccine, for the prevention of lower respiratory tract disease (LRTD) caused by RSV in individuals 18-59 years of age who are at increased risk for disease. This approval expands the previous indication of mRESVIA, which was approved in May 2024 for adults aged 60 years and older. 'RSV poses a serious health risk to adults with certain chronic conditions, and today's approval marks an important step forward in our ability to protect additional populations from severe illness from RSV,' said Stéphane Bancel, Chief Executive Officer of Moderna. 'We appreciate the FDA's review and thank all the participants in our clinical trial as well as the Moderna team for their dedication to protecting people against RSV.' While the risk of RSV is well recognized in infants and older adult populations, adults aged 18-59 years with chronic conditions are also vulnerable.1 Over one-third of adults aged 18-59 years have at least one underlying condition that puts them at increased risk of severe RSV disease,2 with disease burden and hospitalization rates in this population being comparable, or even exceeding, that observed in older adults.3 This approval was supported by results from Moderna's Phase 3 study ( NCT06067230 ), which evaluated the safety and immunogenicity of mRESVIA in adults aged 18-59 with underlying health conditions. The immune responses against both RSV-A and RSV-B met prespecified non-inferiority immunobridging criteria when compared to those observed in adults aged 60 years and older in the pivotal Phase 3, placebo-controlled safety and efficacy study. Comparable levels of neutralizing antibodies were observed across both the 18-49 and 50-59 age subgroups, supporting the vaccine's consistent immunogenicity profile in this at-risk, younger adult population. These findings were presented at the U.S. Centers for Disease Control and Prevention's (CDC) Advisory Committee on Immunization Practices (ACIP) meeting in April 2025 and have been published in Clinical Infectious Diseases. The vaccine was generally well-tolerated, and the most commonly reported solicited adverse reactions were injection site pain, fatigue, headache, myalgia and arthralgia. Moderna intends to have mRESVIA available for both younger adults at increased risk (ages 18-59) and older adults (ages 60+) in the U.S. for the 2025-2026 respiratory virus season. About mRESVIA® (Respiratory Syncytial Virus Vaccine) mRESVIA® is an RSV vaccine that consists of an mRNA sequence encoding a stabilized prefusion F glycoprotein. The F glycoprotein is expressed on the surface of the virus and is required for infection by helping the virus to enter host cells. The prefusion conformation of the F protein is a significant target of potent neutralizing antibodies and is highly conserved across both RSV-A and RSV-B subtypes. The vaccine uses the same lipid nanoparticles (LNPs) as the Moderna COVID-19 vaccines. About Moderna Moderna is a leader in the creation of the field of mRNA medicine. Through the advancement of mRNA technology, Moderna is reimagining how medicines are made and transforming how we treat and prevent disease for everyone. By working at the intersection of science, technology and health for more than a decade, the company has developed medicines at unprecedented speed and efficiency, including one of the earliest and most effective COVID-19 vaccines. Moderna's mRNA platform has enabled the development of therapeutics and vaccines for infectious diseases, immuno-oncology, rare diseases and autoimmune diseases. With a unique culture and a global team driven by the Moderna values and mindsets to responsibly change the future of human health, Moderna strives to deliver the greatest possible impact to people through mRNA medicines. For more information about Moderna, please visit and connect with us on X (formerly Twitter), Facebook, Instagram, YouTube and LinkedIn. mRESVIA® is a registered trademark of Moderna. INDICATION mRESVIA is a vaccine to protect you against lower respiratory tract disease caused by Respiratory Syncytial Virus (RSV). mRESVIA is for people 60 years of age and older and also for people 18 through 59 years of age who are at increased risk for RSV (people with medical conditions such as diabetes or with diseases affecting the lungs and heart). Vaccination with mRESVIA may not protect all people who receive the vaccine. mRESVIA does not contain RSV. mRESVIA cannot give you lower respiratory tract disease caused by RSV. IMPORTANT SAFETY INFORMATION Who should not get mRESVIA? You should not get mRESVIA if you had a severe allergic reaction to any ingredient in mRESVIA. What should you tell your healthcare provider? Tell your healthcare provider about all of your medical conditions, including if you: How is mRESVIA given? mRESVIA is given as an injection into the muscle. What are the risks of mRESVIA? There is a very small chance that mRESVIA could cause a severe allergic reaction. A severe allergic reaction would usually occur within a few minutes to one hour after getting a dose of mRESVIA. For this reason, your healthcare provider may ask you to stay for a short time at the place where you received your vaccine. Signs of a severe allergic reaction may include: Side effects that have been reported in clinical trials with mRESVIA include: These may not be all of the possible side effects of mRESVIA. Ask your healthcare provider about any side effects that concern you. You may report side effects to the Vaccine Adverse Event Reporting System (VAERS) at 1-800-822-7967 or Please click for mRESVIA Full Prescribing Information. Moderna Forward-Looking Statements This press release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, as amended, including statements regarding: the efficacy, safety and tolerability of mRESVIA; the disease burden associated with RSV, particularly in adults with certain risk factors; and the availability of mRESVIA for the 2025-2026 season. The forward-looking statements in this press release are neither promises nor guarantees, and you should not place undue reliance on these forward-looking statements because they involve known and unknown risks, uncertainties, and other factors, many of which are beyond Moderna's control and which could cause actual results to differ materially from those expressed or implied by these forward-looking statements. These risks, uncertainties, and other factors include, among others, those risks and uncertainties described under the heading 'Risk Factors' in Moderna's Annual Report on Form 10-K for the fiscal year ended December 31, 2024, and in subsequent filings made by Moderna with the U.S. Securities and Exchange Commission, which are available on the SEC's website at Except as required by law, Moderna disclaims any intention or responsibility for updating or revising any forward-looking statements contained in this press release in the event of new information, future developments or otherwise. These forward-looking statements are based on Moderna's current expectations and speak only as of the date of this press release. Moderna Contacts Media: Chris Ridley Head of Global Media Relations +1 617-800-3651 [email protected] Investors: Lavina Talukdar Senior Vice President & Head of Investor Relations +1 617-209-5834 [email protected] 1 Prasad N, Walker TA, Waite B, et al. Respiratory syncytial virus-associated hospitalizations among adults with chronic medical conditions. Clin Infect Dis 2021; 73(1): e158-e63. 2 Wilker E, Jiang M, Francis B, et al. Burden of chronic medical conditions that are risk factors for severe RSV among adults aged 18-59 years in the United States. Poster presented at: ESCMID; April 2025; Vienna, Austria. 3 Weycker D, Averin A, Houde L, et al. Rates of Lower Respiratory Tract Illness in US Adults by Age and Comorbidity Profile. Infect Dis Ther 2024; 13(1): 207-20. SOURCE: Moderna, Inc. press release

Scientists discover ‘dragon prince' dinosaur, the T. Rex's missing ancestor
Scientists discover ‘dragon prince' dinosaur, the T. Rex's missing ancestor

Yahoo

time10 hours ago

  • Yahoo

Scientists discover ‘dragon prince' dinosaur, the T. Rex's missing ancestor

Tyrannosaurus rex is a carnivorous icon. Exceeding 40 feet in length and nine tons, the bone-crushing giant stands out as the largest and last of its meat-eating family. Now a new and far smaller tyrannosaur is filling in the famous dinosaur's evolutionary backstory. The newest addition to the tyrannosaur family tree is named Khankhuuluu mongoliensis, which translates to 'dragon prince from Mongolia.' Described this week in the journal Nature, the dinosaur has been identified for the first time from two partial skeletons that include skull bones, vertebrae, part of the hips, and limb bones. Altogether, the pieces reveal a slender tyrannosaur that roamed Cretaceous Mongolia about 86 million years ago and was about 13 feet long—or about the size of juvenile T. rex that would stalk North America 20 million years later. In fact, Khankhuuluu even looked like a juvenile of later, larger tyrannosaurs, with round eye sockets, blade-like teeth, and long, shallow jaws better suited to biting fast rather than hard. (​T. rex had lips, upending its enduring pop culture image.) Khankhuuluu does more than simply add another dinosaur to the ever-growing roster of dinosaurs. 'Khankhuuluu gives us the origin story of tyrannosaurs,' says University of Calgary paleontologist and study co-author Darla Zelenitsky. In the early 1970s, Mongolian paleontologist Altangerel Perle found a pair of partial tyrannosaur skeletons in the eastern part of the country. The bones seemed similar to a small tyrannosaur that had been named before, Alectrosaurus. But when University of Calgary paleontologist and study co-author Jared Voris studied the bones during a research trip to Mongolia in 2023, he soon realized that the bones did not belong to Alectrosaurus at all. The bones from the two skeletons belonged to a new form of tyrannosaur that had been waiting to be discovered in collections for half a century. 'It had features like a hollow air chamber in side its nasal bone, which no other tyrannosaur species has,' Voris says. The fossils deserved a new name and have been recategorized as Khankhuuluu. Voris has found tyrannosaurs hiding in plain sight before. In 2020, Voris and colleagues named the 80 million-year-old tyrannosaur Thanatotheristes from bones assigned to another species found in Alberta. ("Reaper of Death" tyrannosaur discovered in Canada.) The finds are part of a burgeoning array of tyrannosaur discoveries. Instead of a simple line of evolution from early tyrannosaurs to T. rex, paleontologists have uncovered a wildly branching evolutionary bush of different tyrannosaur subgroups that came and went through the Cretaceous. The glut of new tyrannosaur species is allowing experts to piece together how big tyrannosaurs, including the gigantic T. rex, evolved and spread across vast stretches of the planet. When compared to other tyrannosaurs, the researchers found that Khankhuuluu is a close relative of the broader group of tyrannosaurs that include Gorgosaurus from Alberta, the bumpy-snouted Alioramus from Mongolia, and the iconic T. rex. The new family tree, as well as where the fossils were uncovered, create an updated picture of how tyrannosaurs evolved over 20 million years.'It is a pivotal species in understanding the evolutionary success of T. rex and its relatives,' says University College London paleontologist Cassius Morrison, who was not involved in the new study. In particular, the new analysis reveals how tyrannosaurs evolved into many different species as the carnivores wandered into new around the time of Khankhuuluu, Voris and colleagues propose, such small, slender tyrannosaurs were dispersing from prehistoric Asia into North America over a land bridge. 'Tyrannosaurs evolved into those giant apex predators and diversified very rapidly across North America,' Voris says, the first of what Zelenitsky calls 'two explosions of tyrannosaurs.' Some of the predators remained slender and chased smaller prey while others became bulkier and hunted larger dinosaurs, and they roamed habitats from southern California to New Jersey. (See how these fierce dinos evolved in our pages over 100 years.) The new study suggests, however, that the direct ancestors of T. rex, did not evolve in North America. Voris and colleagues propose that around 79 and 78 million years ago at least one lineage of tyrannosaurs ventured back into Asia. The researchers know this because of the close relationship of two tyrannosaur groups that at a glance might seem very different. When tyrannosaurs returned to Asia during this period and underwent their second explosion, one group was relatively slender and had long snouts decorated with small horns, like the 'Pinocchio' dinosaur Qianzhousaurus. The other group began to grow larger, with deep skulls adept at crushing bones, like Tarbosaurus. T. rex evolved from ancestors in the second group, a lineage of bone-crushers that once again crossed the land bridge back into North America between 73 and 67 million years ago—making T. rex a new form of predator that arrived from another continent. 'The new analysis provides strong support that the ancestors of T. rex evolved from a group of tyrannosaurs that ventured back to Asia after they had undergone an evolutionary radiation in North America,' Morrison says. Ultimately, the study suggests that the rise of one of Earth's largest carnivores was due to a back-and-forth between North America and Asia that took place over a period of 20 million years. Had a devastating asteroid impact not abruptly ended the Cretaceous 66 million years ago, tyrannosaurs would have undoubtedly kept changing.

Scientists discover ‘dragon prince' dinosaur, the T. Rex's missing ancestor
Scientists discover ‘dragon prince' dinosaur, the T. Rex's missing ancestor

National Geographic

time10 hours ago

  • National Geographic

Scientists discover ‘dragon prince' dinosaur, the T. Rex's missing ancestor

Khankhuuluu mongoliensis was slender with features like no other member of the tyrannosaur family tree. This illustration depicts how the slender Khankhuuluu mongoliensis may have appeared as it roamed Mongolia during the Cretaceous period. The newest addition to the tyrannosaur family, the discovery of this "dragon prince from Mongolia" sheds light on the origins of Tyrannosaurus rex. Illustration by Julius Csotonyi Tyrannosaurus rex is a carnivorous icon. Exceeding 40 feet in length and nine tons, the bone-crushing giant stands out as the largest and last of its meat-eating family. Now a new and far smaller tyrannosaur is filling in the famous dinosaur's evolutionary backstory. The newest addition to the tyrannosaur family tree is named Khankhuuluu mongoliensis, which translates to 'dragon prince from Mongolia.' Described this week in the journal Nature, the dinosaur has been identified for the first time from two partial skeletons that include skull bones, vertebrae, part of the hips, and limb bones. Altogether, the pieces reveal a slender tyrannosaur that roamed Cretaceous Mongolia about 86 million years ago and was about 13 feet long—or about the size of juvenile T. rex that would stalk North America 20 million years later. In fact, Khankhuuluu even looked like a juvenile of later, larger tyrannosaurs, with round eye sockets, blade-like teeth, and long, shallow jaws better suited to biting fast rather than hard. (​T. rex had lips, upending its enduring pop culture image.) Khankhuuluu does more than simply add another dinosaur to the ever-growing roster of dinosaurs. 'Khankhuuluu gives us the origin story of tyrannosaurs,' says University of Calgary paleontologist and study co-author Darla Zelenitsky. Comparing the fossils of mature Khankhuuluu (a, d, g) with fossils of mature Gorgosaurus (c, f, i) and juvenile Gorgosaurus (b, e, h) provides new insights into the evolutionary lineage between the smaller-bodied tyrannosauroids, such as Khankhuuluu, and the larger eutyrannosaurians like Gorgosaurus and Tyrannosaurus. Silhouettes compare the sizes of Khankhuuluu (left) with a juvenile (right) and adult (middle) Gorgosaurus. Scale bars, 5 cm (individual elements) and 1 m (silhouette). Illustration by Voris et al. (2025), Nature In the early 1970s, Mongolian paleontologist Altangerel Perle found a pair of partial tyrannosaur skeletons in the eastern part of the country. The bones seemed similar to a small tyrannosaur that had been named before, Alectrosaurus. But when University of Calgary paleontologist and study co-author Jared Voris studied the bones during a research trip to Mongolia in 2023, he soon realized that the bones did not belong to Alectrosaurus at all. The bones from the two skeletons belonged to a new form of tyrannosaur that had been waiting to be discovered in collections for half a century. 'It had features like a hollow air chamber in side its nasal bone, which no other tyrannosaur species has,' Voris says. The fossils deserved a new name and have been recategorized as Khankhuuluu. Voris has found tyrannosaurs hiding in plain sight before. In 2020, Voris and colleagues named the 80 million-year-old tyrannosaur Thanatotheristes from bones assigned to another species found in Alberta. ("Reaper of Death" tyrannosaur discovered in Canada.) The finds are part of a burgeoning array of tyrannosaur discoveries. Instead of a simple line of evolution from early tyrannosaurs to T. rex, paleontologists have uncovered a wildly branching evolutionary bush of different tyrannosaur subgroups that came and went through the Cretaceous. The glut of new tyrannosaur species is allowing experts to piece together how big tyrannosaurs, including the gigantic T. rex, evolved and spread across vast stretches of the planet. What the 'dragon prince' tells us about the evolution of T. rex When compared to other tyrannosaurs, the researchers found that Khankhuuluu is a close relative of the broader group of tyrannosaurs that include Gorgosaurus from Alberta, the bumpy-snouted Alioramus from Mongolia, and the iconic T. rex. The new family tree, as well as where the fossils were uncovered, create an updated picture of how tyrannosaurs evolved over 20 million years. 'It is a pivotal species in understanding the evolutionary success of T. rex and its relatives,' says University College London paleontologist Cassius Morrison, who was not involved in the new study. In particular, the new analysis reveals how tyrannosaurs evolved into many different species as the carnivores wandered into new landscapes. Sometime around the time of Khankhuuluu, Voris and colleagues propose, such small, slender tyrannosaurs were dispersing from prehistoric Asia into North America over a land bridge. 'Tyrannosaurs evolved into those giant apex predators and diversified very rapidly across North America,' Voris says, the first of what Zelenitsky calls 'two explosions of tyrannosaurs.' Some of the predators remained slender and chased smaller prey while others became bulkier and hunted larger dinosaurs, and they roamed habitats from southern California to New Jersey. (See how these fierce dinos evolved in our pages over 100 years.) The new study suggests, however, that the direct ancestors of T. rex, did not evolve in North America. Voris and colleagues propose that around 79 and 78 million years ago at least one lineage of tyrannosaurs ventured back into Asia. The researchers know this because of the close relationship of two tyrannosaur groups that at a glance might seem very different. When tyrannosaurs returned to Asia during this period and underwent their second explosion, one group was relatively slender and had long snouts decorated with small horns, like the 'Pinocchio' dinosaur Qianzhousaurus. The other group began to grow larger, with deep skulls adept at crushing bones, like Tarbosaurus. T. rex evolved from ancestors in the second group, a lineage of bone-crushers that once again crossed the land bridge back into North America between 73 and 67 million years ago—making T. rex a new form of predator that arrived from another continent. 'The new analysis provides strong support that the ancestors of T. rex evolved from a group of tyrannosaurs that ventured back to Asia after they had undergone an evolutionary radiation in North America,' Morrison says. Ultimately, the study suggests that the rise of one of Earth's largest carnivores was due to a back-and-forth between North America and Asia that took place over a period of 20 million years. Had a devastating asteroid impact not abruptly ended the Cretaceous 66 million years ago, tyrannosaurs would have undoubtedly kept changing.

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