PNNL scientist elected AAAS fellow
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Updates every hour. Last Updated: 25-Apr-2025 23:08 ET (26-Apr-2025 03:08 GMT/UTC)
A group of researchers including scientists of the Earth-Life Science Institute (ELSI) at Institute of Science Tokyo have uncovered a surprising role for calcium in shaping the building blocks of life. Their study reveals that calcium ions help determine the molecular "handedness" (chirality) of tartaric acid polymers—an essential feature of biological molecules like DNA and proteins. This discovery sheds light on how life's uniform molecular structures may have first emerged on early Earth. In a twist on traditional theories, the researchers suggest that simple polyesters, in addition to peptides or nucleic acids, could have adopted this crucial trait on early Earth, offering a fresh perspective on life’s chemical origins.
- Study from University of Leicester describes a new species of fossil that is 444 million years-old with soft insides perfectly preserved
- Research ‘ultramarathon’ saw palaeontologist puzzled by bizarre fossil for 25 years
- Revealed to be an entirely new kind of arthropod and named after lead researcher’s mum
New research led by a York University professor sheds light on the earliest days of the earth’s formation and potentially calls into question some earlier assumptions in planetary science about the early years of rocky planets. Establishing a direct link between the Earth’s interior dynamics occurring within the first 100 million years of its history and its present-day structure, the work is one of the first in the field to combine fluid mechanics with chemistry to better understand the Earth's early evolution.
Jorge Mira Pérez of Universidad de Santiago de Compostela and José María Martín Olalla of the Universidad de Sevilla have analysed the responses to the public consultation organised by the European Commission in 2018 on changing the clocks.