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Earth
Iron melting temperature and phase stability under nuclear-like conditions shed light on Earth’s geodynamics
Laser-driven impact phenomena in iron at high-power laser facilities (HPLF). X-ray absorption spectroscopy (XAS) was used to determine the melting temperature and microstructure of iron at pressures relevant to geosciences. Credit: Jean-Alexis Hernandez, European Synchrotron Radiation Facility. Iron is one of the major elements found in the Earth’s inner core, which is characterized by extremely high temperatures and pressures. Therefore,…
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Earth
Tracking missing mantle plume in ancient Samoa: researchers shed light on 30 million year gap
Bathymetric map of the Pacific region focusing on the trajectory of Samoa’s Hotspot 100 Mil, from Samoa’s hotspot active volcanoes (Vailuluu Seamount) to the Dutton Ridge (near the Mariana Trench). Credit: AGU Advances (2024). DOI: 10.1029/2023AV001079 As magma plumes rise through the Earth’s lithosphere, volcanoes, islands, seamounts, and other features form on the Earth’s surface. As tectonic plates move over…
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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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Biology
New genetic analysis of animals farmed at the 2019 Wuhan market may help shed light on origins of COVID-19
An elderly patient receives an intravenous drip while on a ventilator in a hallway at an emergency ward in Beijing, Thursday, Jan. 5, 2023. Credit: AP Photo/Andy Wong, File Scientists investigating the origins of COVID-19 are zeroing in on a list of animals that may have played a role in the disease’s spread to humans, in the hope that the…
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Space & Cosmos
New cosmic distance catalogue may shed light on mysteries of the universe’s formation
The William Herschel Telescope, La Palma, Spain. Courtesy of the PAUS team. A new catalog was published today that provides information on millions of distant galaxies, determining their distances with unprecedented precision, across fields and depths never before explored. The catalogue is the product of the Accelerated Astrophysics Survey (PAUS), an international collaboration project led by the Institute for Space…
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