Mercury’s surface reveals a surprisingly fiery past

Scientists have discovered that Mercury’s surface contains far less silicon dioxide than previously thought, pointing to an unexpectedly hot volcanic past. The finding suggests ancient lava may have originated from deeper, more extensively melted parts of the planet’s mantle.

from All Top News -- ScienceDaily https://ift.tt/0rsFhux

66-million-year-old feather in dinosaur poop may reveal why birds survived the asteroid

A feather discovered inside 66-million-year-old fossilized dinosaur poop may help explain why modern birds survived the asteroid catastrophe. The extinct bird it came from had more primitive insulating feathers, suggesting superior plumage may have helped the ancestors of living birds endure the deadly impact winter.

from All Top News -- ScienceDaily https://ift.tt/x0jQdEW

Raindrops can damage paint with microscopic “lightning”

Scientists discovered that charged water droplets can damage protective coatings by releasing tiny electrical discharges when they hit a surface. The hidden effect could help explain weathering and lead to tougher coatings for cars, bridges, buildings, and more.

from All Top News -- ScienceDaily https://ift.tt/oepBPWg

Astronomers detect ancient hydrogen signal that could help map the Universe

Astronomers have detected an exceptionally faint hydrogen radio signal from billions of light-years away using South Africa’s MeerKAT telescope. Instead of finding galaxies one at a time, the technique measures their combined hydrogen glow across enormous stretches of space. The successful detection shows that astronomers may soon be able to create much larger 3D maps of the Universe.

from All Top News -- ScienceDaily https://ift.tt/AvBeGQ3

Early statin use linked to 15% lower dementia risk

Starting statins soon after a type 2 diabetes diagnosis may do more than protect the heart. In a nationwide Danish study of more than 132,000 people, those who began statin treatment within a year of diagnosis had a 15% lower relative risk of developing dementia over 10 years compared with those who did not start statins.

from All Top News -- ScienceDaily https://ift.tt/SiQRpBW

Popular brain supplement linked to shorter lifespan in men

A large study involving more than 270,000 people has linked higher blood levels of the amino acid tyrosine to a shorter lifespan in men. Using both observational data and genetic analysis, researchers found that elevated tyrosine could potentially reduce male life expectancy by nearly a year, while no significant effect appeared in women. Tyrosine is found naturally in protein-rich foods and is also sold as a supplement for boosting focus and mental performance, making the finding especially intriguing.

from All Top News -- ScienceDaily https://ift.tt/QcfnxAD

AI can now control fusion plasma faster than humans can react

Princeton researchers have tested an AI system that can monitor and control fusion plasma in milliseconds, reacting far faster than a human operator. In one experiment, it predicted a damaging instability about 200 milliseconds before it appeared and adjusted the plasma to stop it from forming.

from All Top News -- ScienceDaily https://ift.tt/N3fZMSl

This “new” frog was hiding in plain sight for 100 years

A common frog found across Ecuador and Colombia has finally been recognized as its own species after more than a century of mistaken identity. Museum specimens from the 1800s helped scientists reveal that Pristimantis milpe had been hiding in plain sight all along.

from All Top News -- ScienceDaily https://ift.tt/H8hfWEd

Quantum oscillations defy expectations in this exotic material

Scientists have uncovered an unusual form of electron behavior in zirconium pentatelluride, a quantum material that can act as both an insulator and a conductor. Under temperatures near absolute zero and magnetic fields reaching 60 tesla, electrons produced quantum oscillations that continued even after conventional physics predicted they should disappear.

from All Top News -- ScienceDaily https://ift.tt/TIyK9cn

Scientists overturn a theory about this shark’s strange head

Scientists have overturned a leading explanation for why male and female bonnethead sharks have differently shaped heads. Instead of males developing a pointed snout at maturity, both sexes actually begin with more pointed heads that become rounder with age, particularly in females.

from All Top News -- ScienceDaily https://ift.tt/LJqAlrU

MIT turns bacteria into living transistors

MIT researchers have created bacterial “transistors” that can be wired together into living circuits capable of performing calculations and directing chemical signals. One day, these biological computers could coat plant roots or leaves, detecting environmental threats and automatically triggering defenses.

from All Top News -- ScienceDaily https://ift.tt/vjytVuT

Dying radio galaxies fade faster than scientists expected

Astronomers have identified a surprisingly young population of fading radio galaxies whose supermassive black holes have already switched off their powerful jets. The confirmed remnants range from about 8 to 42 million years old, suggesting many may disappear from view much faster than previously recognized. More distant remnants also seem to fade especially quickly, helping explain why they have been so difficult to detect.

from All Top News -- ScienceDaily https://ift.tt/mMoKyAY

Scientists just overturned a century-old physics assumption

Scientists at Carnegie Mellon University have discovered an unexpected form of the Hall effect, overturning the long-held assumption that this electrical response only appears when a magnetic field points perpendicular to a material. Beyond expanding a century-old principle of physics, the finding could eventually lead to simpler magnetic sensors for electronics, transportation, and medical technologies.

from All Top News -- ScienceDaily https://ift.tt/bY8Ua9X