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Early humans fed salmon to canines 12,000 years ago, that is why dogs are friendly companions

Recent findings reveal that ancient dogs in Alaska had a unique partnership with humans, dating back 12,000 years. This evidence indicates that these canines often shared salmon with early settlers, shedding light on the evolving dynamics between humans and dogs in the Americas. The analysis of fossilized bones uncovered a diet rich in fish, prompting a reevaluation of wolf domestication theories and illustrating a nuanced history of human-canine interactions.

This supersonic jet needed a radiation meter because it flew twice as high as commercial aircraft

The Concorde jet soared near the edge of space, requiring careful monitoring of radiation levels to ensure passenger safety. In the face of hazardous cosmic storms, pilots were mandated to descend to safer altitudes. While this supersonic aircraft typically flew above the majority of Earth's atmospheric shield, fluctuations in radiation exposure depended on several factors including altitude, geography, and solar activity. During such storms, safety took precedence over speed.

Scientists say crushing deep-ocean pressure squeezes hidden nutrients out of sinking marine snow, feeding microbes and changing what we know about Earths carbon cycle

Scientists have discovered that the immense pressure in the deep ocean squeezes nutrients out of sinking marine snowtiny particles of dead algae and organic matterproviding an unexpected food source for deep-sea microbes. The findings suggest more carbon escapes into deep ocean water than previously believed, which could reshape scientists' understanding of Earth's carbon cycle and improve future climate models.

A supernova lit up Earths sky in 1054 and was visible in daylight. Hubble now shows its glowing remains are still expanding nearly 1,000 years later

Astronomers used the Hubble Space Telescope to measure the expanding Crab Nebula. New images compared with older ones show gas filaments moving outwards. This ancient stellar explosion's remnant is still actively changing today. The Crab Pulsar at the center continues to power the nebula's glow. Scientists also identified previously unrecognised filament structures within the nebula.

Quote of the day by popular psychiatrist Thomas Szasz: If you have strongly held opinions, you are opinionated; if you don't, you lack - a witty observation that exposes the impossible standards society often places on independent thinkers

Thomas Szasz noted people face criticism whether they express strong opinions or remain silent. He observed that holding firm views leads to labels of being opinionated. Conversely, avoiding firm positions results in accusations of lacking conviction. This paradox highlights the impossibility of avoiding judgment from others. Ultimately, the focus should be on well-considered views, not on evading all objections.

Buried for 5,300 years beneath a Stone Age tomb, a skull discovered in Spain has revealed the world's earliest known ear surgery

Europe just unveiled a reusable rocket concept that could challenge SpaceXs Starship

European researchers have proposed a new rocket concept called RLV C5. This design offers a partially reusable launch vehicle for Europe's heavy lift needs. The RLV C5 utilizes liquid hydrogen and oxygen, which is more efficient. Its booster would glide back and be captured by an aircraft. This approach aims to reduce development complexity and cost for Europe.

Science word of the day: Allele, know its meaning, who introduced the term, and its practical applications

Quote of the day by physician Avicenna: Is it the fault of wine if a fool drinks it and goes stumbling into darkness? - a timeless lesson on personal responsibility

Avicenna's ancient wisdom emphasizes personal responsibility for actions and outcomes. He argued that objects and circumstances do not possess agency to cause harm. Individuals are accountable for their choices and how they utilize available resources. This principle applies universally to tools, wealth, and knowledge. Accepting this responsibility is the starting point for true wisdom.

Scientists just created a Black Hole-like energy system in a lab without moving anything

In a groundbreaking experiment, scientists have successfully replicated the extreme conditions found around black holes in a controlled laboratory environment. This remarkable feat validates theories regarding energy harnessing from rotating black holes. By artificially inducing rotation in a fixed apparatus, they effectively simulated cosmic energy mechanisms. This pivotal advancement holds promise for innovations in communication technologies and quantum computing, bridging the gap between intricate astrophysical theories and tangible scientific application.

Two Asian praying mantises are spreading across Europe, and scientists warn they threaten wildlife

Two invasive species of Asian praying mantis are proliferating rapidly across Europe, posing a significant threat to local pollinators and endangered small wildlife. Urban areas and rising global temperatures enable their northward spread. Engaging in citizen science initiatives is essential for monitoring and managing these aggressive insect populations. Additionally, seasonal removal of egg cases can effectively mitigate their environmental impact.

A second pregnancy changes the brain in a different way from the first, new research suggests

Recent research indicates that a mother's brain undergoes distinct transformations during second pregnancies compared to the first. These adaptations enhance attention and sensory processing, facilitating the care of multiple children. Notably, brain scans clearly differentiated between first and second pregnancies, revealing connections to maternal bonding experiences and potential peripartum depression risks. This study sheds light on how maternal brains adapt and underscores the need for mental health support.

Japan does not use modern nails to repair centuries-old temples. Instead, master craftsmen rely on an ancient woodworking technique

Centuries-old Japanese temples are still repaired using an ancient woodworking technique. This method, called kigumi, involves precisely carved wooden joints that fit together without metal fasteners. The technique allows structures to withstand earthquakes and humid weather, which is crucial in Japan. Master carpenters, known as miyadaiku, pass down this skill which dates back over 1,400 years. This sustainable craft ensures the longevity of historic buildings and reduces construction waste

Scientists finally know why gold never tarnishes, and the secret lies in its self-protecting surface

Recent scientific research has revealed that the surface atoms of gold can rearrange themselves to create a protective barrier against oxidation. This extraordinary natural mechanism significantly reduces tarnishing rates by up to a trillion times, ensuring gold retains its radiant luster. This discovery opens up possibilities for industrial applications, allowing gold to be utilized as an even more efficient catalyst.

Space milestone for Japan as it successfully launches, lands reusable rocket

The successful trial marks another milestone in the global race to develop reusable launch systems that can significantly reduce the cost of sending payloads into space. Unlike conventional rockets, which are designed for a single mission before their components fall into the sea, burn up in the atmosphere or remain in orbit as debris, reusable rockets are designed to return safely for future launches.

Quote of the day by German physicist Carl Friedrich Gauss: When a philosopher says something that is true then it is trivial. When he says something that is not trivial then it is false - a simple explanation of why truth is often simpler than it seems

Carl Friedrich Gauss questioned complex philosophical claims. He believed true statements were often simple and obvious. Complicated ideas should raise suspicion, not admiration, he noted. True understanding simplifies complex observations into clear principles. This perspective remains a useful test for evaluating claims today.

Scientists say coldest 'stars' in Milky Way could actually be alien technology harvesting energy

Recent studies indicate that certain chill entities scattered across our galaxy might actually be artificial constructs created by extraterrestrial life forms. These colossal structures could function as energy collection systems established by intelligent civilizations. Researchers are on the lookout for distinctive thermal emissions and faint visible light from these objects, leveraging the capabilities of the James Webb Space Telescope and Project Hephaistos.

Quote of the day by Abraham de Moivre: We may imagine Chance and Design to be, as it were, in Competition with each other.

Scientists have debunked the long-repeated myth that baby rattlesnakes are more dangerous than adults, finding that adult rattlesnakes usually deliver more venom and cause more serious bites

A new study challenges the long-held belief that baby rattlesnakes are more dangerous. Researchers found young snakes can control venom expulsion, similar to adults. Adult rattlesnakes carry and inject significantly more venom, causing more severe symptoms. This misconception has led to negative consequences and unwarranted fear among people. The study traced the myth's spread through media reports over decades.

Elon Musk claims SpaceX will send thousands of people to the Moon and Mars within the next 10 years

It has bright yellow wings and looks familiar, but this rare British butterfly is unlike any other, DNA reveals

A new study confirms the British swallowtail butterfly is genetically unique. This native species possesses significantly less genetic diversity than European relatives. Researchers found no accumulation of harmful mutations despite its isolation. However, higher inbreeding levels pose challenges for its long-term survival. Genomic research offers vital insights for protecting vulnerable butterfly populations.

AI has detected hidden slow movements beneath Californias San Andreas Fault earlier missed by scientists: Can it cause a massive earthquake?

Scientists used artificial intelligence to find hidden slow fault movements. These silent events occur beneath California's San Andreas Fault. Such movements release stress over hours or days, escaping traditional detection. Low-frequency earthquake activity increased after these slow slip events occurred. This suggests silent fault movements influence future seismic activity significantly.

You're not smelling the rain at all, you're actually smelling an ancient bacteria

A third galaxy found without dark matter makes a cosmic mystery harder to explain

In the 1870s, one of history's deadliest El Nio events killed millions. Scientists warn the upcoming 2026 event could rival it

Six helicopters will drop 550 tons of poison on this island in the Indian Ocean: Why a project is spending $10 million on the exercise

Marion Island faces a massive mouse eradication effort using helicopters and poison. This project aims to protect native seabirds from the invasive rodent population. Helicopters will distribute 550 tons of rodenticide across the island's terrain. An aerial test is planned for April and May 2027 to evaluate the strategy. The eradication is essential for preserving the island's unique biodiversity.

Humanoid robots perform live surgery for the first time in world-first medical breakthrough