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Phys.org / Helium measurements clarify conditions seconds after the Big Bang
New observations of the composition of distant galaxies offer insights into the earliest phases of the universe and confirm decades of scientific understanding of the elements and particles produced by the Big Bang, according ...
Phys.org / What happens when you flush? Study reveals how toilet aerosols reach the breathing zone
Researchers from Flinders University have found that flushing toilets can release aerosols and bioaerosols into the surrounding air, with some studies detecting particles at heights corresponding to adults' breathing zones.
Medical Xpress / Psychedelics and anesthetics create mirror image patterns in the brain
For something so familiar to human experience, consciousness is still a mystery. Each day, people cycle through wakefulness and sleep, from a higher level of consciousness to a lower one. What's more, some people alter their ...
Phys.org / Canada's last epishelf lake is gone for good, study confirms
Canada's last epishelf lake drained into the Arctic Ocean following the 2020 breakup of the Milne Ice Shelf and will not recover, a new study confirms.
Phys.org / Plants' response to rising CO₂ could put the brakes on dryland expansion
Drylands are defined as regions where rainfall is low relative to the atmosphere's ability to draw water from soil and plants. Expanding boundaries of these regions are frequent concerns in climate change considerations. ...
Phys.org / How adoption of a new crop reshaped land use in Bronze Age Europe
A new study published in Science Advances reveals how Bronze Age communities in Central Europe adapted to changing environmental and social conditions by adopting broomcorn millet, a fast-growing, climate-resilient crop.
Phys.org / Decades-old DNA mystery solved after strands are captured zipping together for the first time
Researchers have captured the moment two DNA molecules zip together, overcoming their identical negative charges to pair up and revealing a mechanism that has puzzled scientists for more than 20 years. Using high-powered ...
Phys.org / LLM use may threaten freedom of thought and equality across law, journalism and education
The Human Rights Center at UC Berkeley School of Law has released a human rights assessment of the use of large language models (LLMs) in the fields of law, journalism and education.
Medical Xpress / A burst of 'pink noise' may lead to more restorative sleep
During the day, waste products such as lactic acid and worn-out proteins build up in the brain. When we sleep at night, waves of cerebrospinal fluid (CSF) help wash away this waste, keeping the brain healthy.
Phys.org / Beryllium signal identifies stars that have swallowed rocky planets
An international team led by researchers from the University of São Paulo (USP) in Brazil has developed an innovative method to identify stars that have consumed the planets around them. The technique detects variations in ...
Phys.org / Electrochemical system extracts pure hydrogen from ammonia at substantially lower temperatures
As a liquid that is easily stored and transported, ammonia (NH3) is an attractive carrier for hydrogen, which is used in fuel cells, semiconductor manufacturing, chemical processing and other applications. However, breaking ...
Phys.org / Chandra uncovers 'hypersoft X-ray sources' that may solve two astrophysical puzzles
Using NASA's Chandra X-ray Observatory, scientists have discovered a new class of objects behaving unlike any they have seen before. Astronomers suggest these newly spotted objects in other galaxies may help solve not one, ...
