Phys.org news

Phys.org / Biochemists discover self-repair function in key photosynthetic protein complex

Cyanobacteria began contributing oxygen to Earth's mostly noxious atmosphere more than 2 billion years ago. The photosystem II protein complex now shared by various lineages of cyanobacteria, algae and land plants has served ...

5 hours ago in Chemistry
Phys.org / Excitons in organic semiconductors: Unraveling their quantum entanglement and dynamics

Excitons, encountered in technologies like solar cells and TVs, are quasiparticles formed by an electron and a positively charged "hole," moving together in a semiconductor. Created when an electron is excited to a higher ...

2 hours ago in Physics
Phys.org / Tech advances and infrastructure changes aren't enough to achieve carbon emission goals by 2050, model finds

Most countries are relying on a combination of technological advances and infrastructure changes to meet their goals for greenhouse gas emissions reductions. However, a new model from Ben-Gurion University of the Negev environmental ...

6 hours ago in Earth
Phys.org / Massive stellar feedback influences star formation, finds study of W4 super-large HII region

A new study has unveiled new insights into the effects of massive stars on nearby molecular gas and star formation in the W4 super-large HII region.

7 hours ago in Astronomy & Space
Phys.org / World may have entered era of 1.5C warming, scientists say

Last year's record-breaking temperatures could be a sign that the world is entering a new era above 1.5C of global warming, scientists say, one never before faced by modern humans.

7 hours ago in Earth
Phys.org / Scientists in Scotland develop new method to understand past and present wildfires

Scientists in Scotland have developed a new method to understand the heat and intensity of fires that burned out millions of years ago, which could unlock our understanding of wildfires during past and present periods of ...

7 hours ago in Earth
Phys.org / Age and burial environment don't hinder soft tissue preservation in dinosaurs, study suggests

Soft tissue preservation in fossils does not seem to depend upon the species, age or burial environment of the fossils in question, according to new research from North Carolina State University. The work, published in Scientific ...

7 hours ago in Biology
Phys.org / Wildland fires are unpredictable—spaceborne lidar is helping reduce that uncertainty

Recent wildfires are larger and more intense than they've ever been in the historical record. If you've been watching the news at any point in the last decade, that's no surprise.

7 hours ago in Earth
Phys.org / Designing molecules that produce color-changing circular light for 3D displays and security printing

Certain advanced technologies, such as 3D displays, biosensing, and security printing, can utilize circularly polarized luminescence (CPL), which is produced when specific types of molecules are irradiated with UV light. ...

7 hours ago in Chemistry
Phys.org / Chromatin fiber's genomic 'memory' governs the building blocks of life, study reveals

Northwestern Medicine scientists have discovered new details about how the human genome produces instructions for creating proteins and cells, the building blocks of life, according to a pioneering new study published in ...

7 hours ago in Biology
Phys.org / Nanotech reveals how harmful microplastics stick to coral reefs

University of Waterloo researchers have pinpointed for the first time how microplastics accumulate in coral reefs, a key step to understanding how to protect vulnerable ecosystems.

7 hours ago in Nanotechnology
Phys.org / Fish vision: 3D eye tracking sheds light on swarm dynamics

Schools of fish are mesmerizing examples of collective animal behavior. Thousands of individuals move in near-perfect synchrony, despite each fish having only a limited view of their surroundings. How do they achieve such ...

7 hours ago in Biology