Plants & Animals

Fish-friendly dentistry: New method makes oral research non-lethal

Can we examine the teeth of living fish and other vertebrates in detail, repeatedly over time, without harming them?

Archaeology

Ancient genomes provide final word in Indo-European linguistic origins

A team of 91 researchers—including famed geneticist Eske Willerslev at the Lundbeck Foundation GeoGenetics Center, University of Copenhagen—has discovered a Bronze Age genetic divergence connected to eastern and western ...

NASA probe makes closest ever pass by the sun

NASA's pioneering Parker Solar Probe made history Tuesday, flying closer to the sun than any other spacecraft, with its heat shield exposed to scorching temperatures topping 1,700 degrees Fahrenheit (930 degrees Celsius).

Novel biomarker catches aging cells in the act

Mayo Clinic researchers have identified interleukin-23 receptor (IL-23R) as a significant biomarker of cellular senescence and aging in both mice and humans. Experiments show that IL-23R levels in the bloodstream increase ...

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Tech Xplore

Researchers reveal full-gray optical trap in structured light

A research group led by Prof. Yao Baoli and Dr. Xu Xiaohao from Xi'an Institute of Optics and Precision Mechanics (XIOPM) of the Chinese Academy of Sciences have revealed a full-gray optical trap in structured light, which ...

Fly vs. wasp: Stealing a defense move helps thwart a predator

In the continual arms race between parasites and their hosts, innovation was thought to be the key to a successful attack or defense that one-ups the competition. But sometimes, as in the corporate world, outright theft can ...

A new class of cosmic X-ray sources discovered

An international team of astronomers, led by researchers from the Astronomical Observatory of the University of Warsaw, have identified a new class of cosmic X-ray sources. The findings have been published in The Astrophysical ...

Back to the past: The death of stars reveals their birth

A new article published in Universe describes an approach that looks back from the deaths of stars to their births, allowing the so-called initial mass function (IMF), i.e. the way in which star masses are distributed after ...

Sleep apnea linked to changes in the brain

People with breathing problems during sleep may have a larger hippocampus, the area of the brain responsible for memory and thinking, according to a study published in the December 18, 2024, online issue of Neurology.

How much CO₂ does Zurich emit?

Cities are the largest source of greenhouse gases in the world. About 70% of all anthropogenic emissions are produced in, around and by cities. At the same time, they have great scope for action to reduce these emissions. ...