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Science News

Latest science news, discoveries and scientific developments.

'There was something bigger in the ground here': Metal detectorist in Germany discovers giant Roman-era hoard from time of emperor Hadrian
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'There was something bigger in the ground here': Metal detectorist in Germany discovers giant Roman-era hoard from time of emperor Hadrian

A metal detectorist in the west of Germany has discovered one of the largest hoards of Roman silver coins ever found in that country from the reign of the Emperor Hadrian. The pile includes more than 900 silver denarii — the denarius was the standard coin of the early Roman Empire — and weighs almost 7 pounds (3.1 kilograms).The stash was discovered about a year ago in a field near the small city of Wesseling, a few miles south of Cologne, according to a translated statement from Germany's Rhineland regional government. It's now on display at the Rhineland Regional Museum in Bonn (LVR-Landesmuseum Bonn).Archaeologists think the hoard was buried at the time of the Emperor Hadrian, who ruled f...

📅 2026-09-22 21:13:32    •    Live Science
What is your dog really saying? AI is helping researchers decode animal communication
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What is your dog really saying? AI is helping researchers decode animal communication

Is a dog's bark simply an expression of emotion, or does it contain specific information that humans cannot understand? Artificial intelligence (AI) can already analyze thousands of animal sounds and identify patterns that would go unnoticed by the human ear. But researchers are asking a far more ambitious question: Could technology one day help us understand what animals are actually saying?

📅 2026-09-22 21:00:10    •    Phys.org
RHIC data reveal intriguing dip in momentum fluctuations in high-density nuclear matter
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RHIC data reveal intriguing dip in momentum fluctuations in high-density nuclear matter

Scientists using the STAR detector to study particle collisions at the Relativistic Heavy Ion Collider (RHIC) have found an intriguing dip in their data in a relatively unexplored region of the nuclear phase diagram—a map of how nuclear matter behaves under various conditions of temperature and density. The dip appears in data tracking collision-by-collision variations in the momenta of particles emerging from collisions between gold nuclei at RHIC, near RHIC's lowest collision energies. These collisions create the highest-density nuclear matter and may indicate that something interesting is happening in that dense region of the phase diagram. The findings are described in a paper just publi...

📅 2026-09-22 20:40:08    •    Phys.org
Cash flow lessons help individual investors look beyond reported earnings
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Cash flow lessons help individual investors look beyond reported earnings

Why are individual investors, commonly known as "retail investors," prone to losing money in the stock market? A Lingnan University joint study of more than 4,600 Chinese and U.S. stocks finds that investors are less likely to buy stocks blindly when they understand the difference between a company's "reported earnings" and its "actual cash flows."

📅 2026-09-22 20:20:09    •    Phys.org
Light beam 'swims' upstream through a quantum fluid by violating Newton's third law
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Light beam 'swims' upstream through a quantum fluid by violating Newton's third law

Just as a leaf drifts along with a stream, objects in other moving fluids normally drift along with the flow. That is, unless they exert energy to move against it. Although it may be less intuitive, light waves or photons work similarly. To move against a stream of light, an object or particle, like a photon, must either have an external force acting on it or actively use energy to move upstream.

📅 2026-09-22 20:10:02    •    Phys.org
Fragment of world's oldest peace treaty unearthed in Turkey
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Fragment of world's oldest peace treaty unearthed in Turkey

Archaeologists have discovered a 3,400-year-old fragment of the world's oldest known peace treaty, the Turkish Ministry of Culture and Tourism has announced. The agreement, known as the Treaty of Kadesh, was signed around 1269 B.C. by Egyptian pharaoh Ramesses II and Hittite king Hattusili III. Other parts of the treaty have already been found, but the new fragment was unearthed during an excavation at Hattusha, in north-central Turkey. "We have found traces of peace, thousands of years old, in the soil of Anatolia," Mehmet Nuri Ersoy, Turkey's minister of culture and tourism, said in a Sept. 21 translated statement. The newly discovered cuneiform tablet fragment contains text from a section...

📅 2026-09-22 19:57:51    •    Live Science
Newfound 'fire amoeba from the Cascades' sets record for the hottest temperature complex life can survive at
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Newfound 'fire amoeba from the Cascades' sets record for the hottest temperature complex life can survive at

Researchers found the record-breaking Incendiamoeba cascadensis amoeba in Lassen Volcanic National Park, California. (Image credit: Felix Mikus)A newly-discovered amoeba has set the record for the hottest temperature at which complex life can thrive.The amoeba, found in Lassen Volcanic National Park in California, grows and divides at temperatures up to 145 degrees Fahrenheit (63 degrees Celsius) and can survive brief stints in up to 158 F (70 C) environments, a new study finds. Prior to the discovery, no complex cells were known to replicate at temperatures above 140 F (60 C)."I was very surprised," study first author Beryl Rappaport, a microbiologist at Syracuse University in New York, tol...

📅 2026-09-22 19:50:45    •    Live Science
Tiny quantum nanostructures could make AI less of an energy hog
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Tiny quantum nanostructures could make AI less of an energy hog

Engineers at the University of Wisconsin–Madison have designed a new type of quantum nanostructure that could enable optical neural networks. This emerging technology has the potential to make artificial intelligence systems, like large language models and image generation, faster and significantly more energy efficient.

📅 2026-09-22 19:40:06    •    Phys.org
The mosquito's transition from vegan to bloodsucker explained
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The mosquito's transition from vegan to bloodsucker explained

Scents govern most key events in the lives of mosquitoes, and there is extensive research on their sense of smell. A new study reveals how a young female mosquito shifts from focusing entirely on nectar to seeking only blood. An odor receptor that reacts to camphor was found to play a key role.

📅 2026-09-22 19:20:01    •    Phys.org
Earth's chorus waves show limited link to rapid electron loss from radiation belts
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Earth's chorus waves show limited link to rapid electron loss from radiation belts

The Van Allen radiation belts are huge, doughnut-shaped regions of highly energetic charged particles trapped by Earth's magnetosphere. These charged particles play a major role in space weather, so studying them is important for predicting and managing risks to satellites, astronauts, power grids and other infrastructure.

📅 2026-09-22 19:00:01    •    Phys.org
Sheep grazing may pose greater threat to Scotland's wild pollinators than honey bees
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Sheep grazing may pose greater threat to Scotland's wild pollinators than honey bees

Sheep grazing, rather than honey bees, could be the bigger threat to wild pollinators on Scotland's moorlands, according to a new University of Bristol-led study. The research, published in the Journal of Applied Ecology, has found that grazing in spring can remove much of the nectar emerging bumblebees need, while commercial honey bee hives introduced during the summer heather flowering period have a much smaller impact.

📅 2026-09-22 18:40:06    •    Phys.org
A single temporary stimulus may redirect cell fate without permanently altering genes
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A single temporary stimulus may redirect cell fate without permanently altering genes

Which genes need to be controlled to guide a stem cell toward a desired cell type or modulate an immune cell's inflammatory response? A Korean research team has developed a general-purpose computational framework that identifies the key targets needed to steer a cell toward a desired state with a single temporary intervention, without permanently altering its genes.

📅 2026-09-22 18:40:02    •    Phys.org