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Permanent structures on the moon could start with something already there: lunar dust. New research from the University of Arkansas shows that pure regolith, the loose material that covers the moon, could be 3D-printed into LEGO-like bricks. Using it for construction could reduce what NASA needs to send from Earth as it works toward future lunar settlements.
Black hole jet ejections are powerful outbursts of high-energy photons and particles that provide insights into extreme astrophysical processes. However, predicting when they will occur remains difficult. In a study, researchers from Japan analyzed observations of four black hole binary systems, identifying decreases in the accretion disk’s inner radius and changes in emitted X-ray variability as possible predictors for jet ejection. Their findings could help astronomers forecast these phenomena more accurately and coordinate timely observations.
Researchers at the Department of Energy’s (DOE’s) Oak Ridge National Laboratory (ORNL) and their collaborators used lasers and neutrons to observe a long-lived quantum state in a magnetic material, opening a new way to study materials systems driven far from their equilibrium. Manipulation of quantum magnets is important for advancing quantum information science and could reduce loss of transported information, improve memory devices and benefit other quantum technologies.
An international collaboration of physicists has presented its first results in its search for hypothetical particles that could help to explain the vast disparity between the strength of gravity and the three fundamental forces described by the Standard Model. Following three years of data collection at the Large Hadron Collider (LHC)’s FASER experiment, the FASER Collaboration found no evidence for these heavy, slow-moving “quirks.”
The cases span more than four decades and include the murders of Palm Springs Officers Jose Vega and Lesley Zerebny and Sacramento Officer Tara O’Sullivan
The suspect was taken into custody following a multiagency pursuit and PIT maneuver and is being held without bond on multiple felony charges
The agency aims to reach qualified applicants whose family responsibilities make residential training difficult
Magnons are quasiparticles that represent quantized spin waves in magnetic materials. They can carry information without moving electric charge, making them promising for future information technologies that could use less energy than conventional electronics. The frequency, stability and propagation distance of these waves are all important for their potential applications.
In 2031, Japan’s Hayabusa2 spacecraft will arrive at the near-Earth asteroid 1998 KY26: a tiny body that is accelerating in a way that astronomers have struggled to explain. Some studies have suggested that the asteroid is pushed along by water escaping from it as gas, making it an as-yet theoretical “dark comet.”
Physicists at the ALPS II collaboration have reported the first results from the Any-Light-Particle-Search (ALPS) II experiment: the most sensitive instrument of its kind in the search for hypothetical “axions.” Headed by Axel Lindner at the DESY Research Centre in Germany, the collaboration found no evidence for axions in this initial campaign, but its results offer valuable guidance for future runs: tightening the search for one of the most promising candidates for dark matter.
Justices are revisiting a 1971 ruling that established a limited pathway for individuals to seek damages from federal agents who violate constitutional protections
Quantum computers could curb the vast energy demands of artificial intelligence data centers with their ability to run complex calculations, one of the tech’s pioneers told AFP.
Researchers at the UVSOR Synchrotron Facility (Institute for Molecular Science, Japan) and partner institutions have observed the decay of a xenon 4d core hole, an inner-shell vacancy, directly in the time domain. They used pairs of phase-coherent extreme ultraviolet pulses from a synchrotron to make the photoelectron wave packets they released interfere. The contrast of the interference fringes decreased over a few femtoseconds as the delay between the pulses increased. A model using literature core-hole lifetimes of about 6 femtoseconds reproduced this rapid decay of the fringe contrast. The study is published in the journal Physical Review A.
A KAIST-led research team has characterized how light propagates through and is absorbed by barium titanate (BTO), a promising material for next-generation optical communication devices. By clarifying optical properties that had been difficult to determine because of the material’s complex internal structure, the study provides a foundation for designing these devices.
We’ve been waiting a long time for the Extremely Large Telescope’s first light, scheduled for March 2029. Telescopes this large, powerful and costly always have multiple science goals, and that’s true for the ELT. One of its science goals is to study fundamental aspects of the universe, including dark matter.
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