samples
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Earth
Core samples from the seabed in Greenland provide the first historical overview of plastic pollution
Map of Egedesminde DYB’s Disco Bay and sampling site. Credit: Communications Earth & Environment (2024). doi:10.1038/s43247-024-01768-y By filling the 850m deep seabed in Disco Bay off the west coast of Greenland, researchers at the University of Copenhagen have won the first historical record of plastic pollution in Greenland. The new data suggest links to local socioeconomic development and represent steps…
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Physics
AI technology produces clear images of thick biological samples without additional hardware.
Concepts and simulations demonstrating deep learning-based aberration correction. Credit: Nature Communications (2025). DOI: 10.1038/s41467-024-55267-x Depth degradation is a problem that biologists are familiar with. The deeper you examine the sample, the blurrier the image becomes. C. elegans embryos and pieces of tissue are only tens of microns thick, but when the instrument peeks past the top layer, light bending causes…
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Chemistry
Enhanced Raman microscopy enables clearer chemical imaging of cryofixed samples
Raman image of snap-frozen HeLa cells with high signal-to-noise ratio and wide field of view. Image acquisition time was 10 hours. The distribution of Raman signals from cytochromes (750 cm-1), lipids (2850 cm-1), and proteins (2920 cm-1) are shown in green, red, and blue, respectively. Credit: Science Advances (2024). DOI: 10.1126/sciadv.adn0110 Understanding the behavior of the molecules and cells that…
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Space & Cosmos
Ryugu samples cast doubt on previous ideas about the formation of carbon-rich asteroids
About 2 million years after the formation of the solar system, the first carbonaceous chondrites, consisting of dust, chondrules, early condensates, and iron-nickel particles, aggregated outside the orbit of the still young Jupiter. About 2 million years later, CI chondrites were formed by photoevaporation. These incorporated particularly large amounts of iron-nickel particles. Credit: MPS (Fridolin Spitzer) Asteroid Ryugu may not…
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Space & Cosmos
Far side samples from the Chang’e 6 mission analyzed for the first time
The topographic map shows the landing sites of the Chang’e, Apollo, and Luna missions. Credit: NAOC A team of Chinese scientists studied the first far side samples brought back by the Chang’e 6 mission. This discovery marks an important milestone in lunar exploration science and technical exploration capabilities. The study was published in National Science Review on September 16th. Professor…
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