Phys.org news

Phys.org / Marine volcanic plateaus tied to at least 4 Triassic extinction events

Mass extinctions are extremely catastrophic events on Earth. Throughout Earth's evolutionary history, numerous mass extinctions have occurred, with five major mass extinctions being particularly representative. These extinctions ...

17 hours ago in Earth
Phys.org / Streaks on Mercury show that it is not a 'dead planet'

Although Mercury was geologically active in its early days, today its surface appears almost completely static. This is why it is often perceived as a dead and dry planet. A new study led by Dr. Valentin Bickel from the Center ...

18 hours ago in Astronomy & Space
Phys.org / Showing real climate wins and friendships helps people join collective climate efforts

What does it take to spur individuals to act as a group with a shared purpose on climate change? According to a new Stanford-led study, the key is to show them how collective actions on climate have made a difference and ...

16 hours ago in Earth
Phys.org / Parasite behind toxoplasmosis hides multiple distinct subtypes inside each cyst

A University of California, Riverside team of scientists has found that Toxoplasma gondii, a common parasite affecting up to one-third of the global population, is far more complex than previously believed. The findings, ...

16 hours ago in Biology
Phys.org / Reconfigurable robotic fish reveals how stiffness and wave propagation shape swimming performance

How can some fish, like tuna, achieve remarkable speed while others, like eels, excel in maneuverability? A research team from Peking University (PKU) has developed a novel robotic platform that sheds new light on this classic ...

17 hours ago in Biology
Phys.org / How a vital DNA protection protein complex adapts to new threats without compromising its essential functions

In Lewis Carroll's "Through the Looking-Glass," Alice is stuck in a never-ending race with the Red Queen yet never gains a lead. "It takes all the running you can do to keep in the same place," the Queen says. "Though we ...

17 hours ago in Biology
Phys.org / First radio signals from rare supernova reveal star's final years

Astronomers have captured the first radio waves ever detected from a rare class of exploding star, a discovery that has given them an unprecedented look into the final years of a massive star before its death in a powerful ...

18 hours ago in Astronomy & Space
Phys.org / Red flowers have a 'magic trait' to attract birds and keep bees away

For flowering plants, reproduction is a question of the birds and the bees. Attracting the right pollinator can be a matter of survival—and new research shows how flowers do it is more intriguing than anyone realized, and ...

18 hours ago in Biology
Phys.org / How defects make permanent magnets even more efficient

Rare-earth magnets are essential for electric motors in vehicles, drones, and trains, forming the backbone of modern, environmentally friendly mobility. These are not simple blocks of metal, but carefully engineered materials ...

18 hours ago in Nanotechnology
Phys.org / Hafted stone tools in China suggest early hominins were more inventive than thought

A newly excavated archaeological site in central China is reshaping long-held assumptions about early hominin behavior in Eastern Asia. Led by the Chinese Academy of Sciences, an international team of researchers conducted ...

19 hours ago in Other Sciences
Phys.org / Trust in Ph.D. advisor can predict a good grad school experience

The advisor-advisee relationship is central to most doctoral education models. Yet not all students trust their advisors. Danfei Hu, Jonathan E. Cook and colleagues sought to examine the importance of this relationship to ...

18 hours ago in Other Sciences
Phys.org / Oddball flower challenges long-held rule about how new plant species evolve

Lipstick vines get their name from their bright red, tube-shaped flowers. But one member of this group of plants has lost its lipstick-like appearance—its flowers are shorter, wider, and yellowish green in color. It also ...

20 hours ago in Biology