distant
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Earth
Scientists use distant sensors to monitor American Samoa earthquake flocks
Credit: Earthquake Records (2025). doi:10.1785/0320240040 From late July to October 2022, residents of the Manua Islands in Samoa, USA, had their planet shaking several times a day, causing concerns about an imminent volcanic eruption or tsunami. Nothing appeared in the area’s earthquake catalogues as the islands lacked earthquake monitoring networks that could assist seismologists who sway in searching for sources…
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Space & Cosmos
Discovery of distant blazars supports rapid black hole formation in the early universe
Artist’s impression of a bright, very early active galactic nucleus discovered by Bañados and his colleagues. This has fundamental implications for the growth of black holes during the first billions of years of cosmic history. Credit: NSF/AUI/NSF NRAO/B. Saxton Astronomers have discovered a key piece of the puzzle of how supermassive black holes were able to grow so quickly in…
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Space & Cosmos
Carbon-storing molecules discovered in distant interstellar clouds may shed light on how our own solar system formed
The Taurus Molecular Cloud, where TMC-1 is located, appears at the top of the image as a dark cloud blocking light from background stars, as seen from Charlottesville, Virginia. Credit: Brett A. McGuire A team led by MIT researchers has discovered that distant interstellar clouds are rich in pyrene, a type of large carbon-containing molecule known as polycyclic aromatic hydrocarbons…
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Earth
AI tool that scans grains of sand opens window into recent and distant past
A scanning electron microscope reveals the shape and texture of quartz sand grains from the Mississippi River. The grains in this photo are about 200 micrometers long. Courtesy of Michael Hasson/Stanford University Stanford University researchers have developed an artificial intelligence-based tool called SandAI that can reveal the history of quartz sand grains going back hundreds of millions of years, allowing…
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