Phys.org news

Phys.org / Gravitational waves as possible candidates for the origin of dark matter

Gravitational waves could be responsible for the production of dark matter during the early phases of our universe's formation, according to results of a new study by Professor Joachim Kopp from Johannes Gutenberg University ...

18 hours ago
Phys.org / Oregano, rosemary and 'time': Long-term swine study shows natural-compound benefits

In the search to replace antibiotic growth promoters with effective alternatives in modern swine production, plant-based essential oils are showing potential to provide lasting benefits. In a rare long-term public study that ...

11 hours ago
Phys.org / FAST observes a peculiar rotating radio transient that also switches to pulsar states

Using the Five-hundred-meter Aperture Spherical Radio Telescope (FAST), Chinese astronomers have explored the behavior of a rotating radio transient (RRAT) known as RRAT J1574+4703. The new observations found that this object ...

21 hours ago
Phys.org / Reducing aircraft soot might not actually reduce the climate effects of contrails

Reducing aircraft soot emissions may not reduce contrail clouds, according to in-flight observations of emissions from a passenger jet with modern "lean-burn" engines, reported in Nature. Contrails from aircraft contribute ...

11 hours ago
Phys.org / Why subduction zones act as the Earth's 'gold kitchens'

Earth's "gold kitchen" lies deep beneath the seafloor. Island arcs, whose volcanoes form above subduction zones where one oceanic plate sinks beneath another, are often particularly rich in gold. The reasons for this have ...

14 hours ago
Phys.org / Fins, fingers and toes: A new take on repeating body parts and how they come to be

As biologists know, nature can take its sweet time explaining itself. Andrew Gillis, associate scientist at the Marine Biological Laboratory (MBL), has been investigating how the paired fins of fishes evolved for nearly 20 ...

12 hours ago
Phys.org / Superconductivity switched on in material once thought only magnetic

Superconductivity—the ability of a material to conduct electricity without any energy loss to heat—enables highly efficient, ultra-fast electronics essential for advanced technologies such as magnetic resonance imaging (MRI) ...

14 hours ago
Phys.org / Hidden features in X-rays could radically change how we measure and understand them

Hidden features uncovered in X-ray signals are set to overturn a key scientific theory and fundamentally change how X-rays are interpreted across fields of physics, chemistry, biology and materials science, new research reveals. ...

13 hours ago
Phys.org / Chaos shapes how meandering rivers change over time, research shows

Rivers are rarely the calm, orderly streams we imagine on maps. Over time, their winding paths—called meanders—shift, bend, and occasionally snap off in sudden "cutoff" events that shorten loops and reshape the landscape. ...

12 hours ago
Phys.org / Free software lets laptops simulate how aging evolves under selection

Why do some species live for only weeks while others survive for centuries? Researchers at the Leibniz Institute on Aging—Fritz Lipmann Institute (FLI) in Jena have developed AEGIS, a freely available software tool that enables ...

14 hours ago
Phys.org / Stretching metals can tune catalysis: A new method predicts energy shifts

Heterogeneous catalysis—in which catalysts and reactants are of different phases, e.g., solid and gas—is important to many industrial processes and often involves solid metal as the catalyst. Ammonia synthesis, catalytic ...

12 hours ago
Phys.org / How gossiping mushroom networks share your public urination secrets

Psst, have you heard that mushrooms can "gossip" and spread information to their neighbors? Underneath the umbrella-like shapes we see on the forest floor is a hidden underground network that allows mushrooms to communicate. ...

18 hours ago