Seabed damaged by fishing showing signs of recovery
Campaigners say improvements to the area trashed by illegal dredging show that marine protection works. O recorte ajuda a contextualizar a pauta dentro de Agro.
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A rare interstellar visitor triggered a SETI search for alien technology
SETI scientists searched the interstellar object 3I/ATLAS for radio signals that could indicate extraterrestrial technology but found nothing beyond human-made interference. Even so, the rapid-response observations helped confirm the object's natural origin and showcased how futu
Lavatory shaft reveals the cost of 17th‑century vanity in Germany
Four goose skulls were pulled from a former toilet shaft in Brandenburg, Germany, each of them riddled with strange holes. As it turns out, these holes were the telltale signs of fancy feathered crests, making them the first crested geese ever identified in the archaeological rec
Automated system detects early signs of nanomaterials toxicity
Korea Research Institute of Standards and Science has developed a toxicity assessment system that automatically measures and analyzes the heart rate of Daphnia magna. Capable of processing heart rate data from approximately 150 individuals per hour, the system can assess the toxi
When glaciers disappear, so do deities
In a recent viewpoint published in Nature Climate Change, six researchers from South America, Asia and Africa examine how glacier retreat in the Andes, Himalayas and other high-altitude regions is reshaping the cultural and spiritual life of different glacial communities. Accordi
NASA’s Lucy finds a wobbling peanut-shaped asteroid with signs of ancient water
NASA’s Lucy spacecraft discovered that asteroid Donaldjohanson is a wobbling, peanut-shaped relic born from a violent collision and slowly reshaped by the subtle force of sunlight. It also carries traces of ancient water, making it an important clue to the solar system’s mysterio
Nautilus array to track missing exoplanet atmospheres
Exoplanet atmospheres have become prime targets for astrobiologists in the search for life beyond Earth. This is because exoplanet surfaces can't be directly imaged yet, so astronomers must get creative in how they search for signs of life, also called biosignatures. Presently, p
‘A sanitized view of America’: inside Trump’s campaign to erase US history from national p
Critics say the Trump administration is trying to rewrite and whitewash history by removing and altering scores of signs on public landsJerry Bransford, a former US National Park Service (NPS) ranger, has always had a deep connection with the land he grew up on – and the land hun
Drinking to cope with stress may permanently rewire your brain
Using alcohol to cope with stress when young may permanently alter the brain, making it harder to adapt to challenges and increasing the risk of returning to drinking later in life. Researchers also found signs of brain damage associated with early dementia, suggesting the effect
Efficient method for preparing pseudopregnant mice promotes laboratory animal welfare
In biomedical research using mouse models, preparing pseudopregnant recipient females is a standard step in embryo transfer protocols. Conventionally, this process requires technicians to select female mice showing clear signs of estrus. Because only a limited percentage of mice
Baseline tool could separate alien life signals from geology on ocean worlds
When it comes to the search for life elsewhere in the universe, methane and other chemical compounds are seen as signs of biology because they are often produced by living microbes. However, scientists can be misled because certain geological processes can produce chemical signat
Schrödinger’s anthill: Quantum entanglement found in a crystal large enough to hold
A centimeter-sized crystal has revealed clear signs of quantum entanglement, showing that large, everyday objects can display surprisingly deep quantum behavior. The discovery could help solve the mystery of strange metals while opening new possibilities for ultra-precise quantum