Matter
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Earth
Earth’s hidden carbon recycling: Sulfur bacteria work together to break down organic matter from the seabed
To determine the molecular tools sulfate-reducing bacteria use, researchers analyzed the entire set of proteins known as the proteome. In total, they looked at the results of 80 different test conditions. Each time, the protein mixture was separated in several steps until individual compounds were identified. Here, a separation gel containing a blue band with proteins of similar size and…
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Physics
Neutron star measurements put limits on color superconductivity in dense quark matter
Ground-based radio telescopes, gravitational wave detectors, and space-based X-ray telescopes (right) all measure neutron stars (top left, showing mergers) and pairings of differently colored quarks in dense matter (bottom left). ). ). Credit: Rachel Steinhorst, NASA/Roscosmos, California Institute of Technology/MIT/LIGO Lab At very high densities, quarks are expected to form pairs, similar to electrons in superconductors. This behavior of dense…
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Physics
Scientists use matter waves to reveal new collective behavior in quantum optics
View of an array of matter wave emitters held in an optical lattice tube (atomic excitation in red, emitted matter waves in blue, effective vacuum coupling in green) and directional superradiation data. Credit: Alfonso Lanuza A research team led by Dr. Dominique Schnaebel, professor in the Department of Physics and Astronomy, has discovered a new regime for cooperative radiation phenomena,…
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Other Sciences
Saturday’s quote: Cold dark matter takes a hit. A new paradigm in biology. those fracking earthquakes
This image shows a small portion of the field observed by NIRCam (Near Infrared Camera) on NASA’s James Webb Space Telescope for the Cosmic Evolution and Early Emission Science (CEERS) study. It’s full of galaxies. Some galaxies grew so large and so quickly that simulations seem unable to explain them. But new research has found that some of these early…
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Physics
Investigating the impact of ultralight dark matter on gravitational wave signals
Inspiring extreme mass ratio binaries in a dark matter environment. The movement of a small black hole creates a dense wake, which slows it down and affects the gravitational wave signal. Credit: Beatriz Oliveira and Rodrigo Vicente. A recent study published in Physical Review Letters investigated the effects of ultralight dark matter on extreme mass specific intake (EMRI), which could…
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Physics
Nuclear theorists use supercomputers to map the building blocks of matter in 3D
Nuclear theorists from the HadStruc Collaboration have been working on a mathematical description of parton interactions using supercomputers, including machines in Jefferson Laboratory’s Data Center. Credit: Jefferson Laboratory/Eileen Devlin Deep within what we perceive as solid matter, the landscape is far from static: The interiors of the particles called hadrons that make up atomic nuclei are made up of a…
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Science
Researchers examine impact of Black Lives Matter movement on racial prejudice
Credit: Life Matters from Pexels The killing of George Floyd in 2020 reignited the Black Lives Matter movement, a mass social movement aimed at exposing and reducing structural racism and inequality in the U.S. The movement and coverage of it have had a profound impact on how white Americans think about black Americans, says postdoctoral researcher Max Primes. Primes’ research…
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