鶹Ժ - latest science and technology news stories / en-us 鶹Ժ internet news portal provides the latest news on science including: 鶹Ժics, Nanotechnology, Life Sciences, Space Science, Earth Science, Environment, Health and Medicine. IXPE obtains first X-ray polarization measurement of magnetar outburst What happens when the universe's most magnetic object shines with the power of 1000 suns in a matter of seconds? Thanks to NASA's IXPE (Imaging X‑ray Polarimetry Explorer), a mission in collaboration with ASI (Italian Space Agency), scientists are one step closer to understanding this extreme event. /news/2025-06-ixpe-ray-polarization-magnetar-outburst.html Astronomy Thu, 05 Jun 2025 13:30:06 EDT news668348791 Nanoscale spectroscopy detects vibrational signals from molecules in confined gaps Vibrational sum-frequency generation (VSFG) is a nonlinear spectroscopic method widely used to investigate the molecular structure and dynamics of surface systems. However, in far-field observations, the spatial resolution of this method is constrained by the diffraction limit, which restricts its ability to resolve molecular details in inhomogeneous structures smaller than the wavelength of light. /news/2025-05-nanoscale-spectroscopy-vibrational-molecules-confined.html Nanophysics Nanomaterials Mon, 12 May 2025 12:05:04 EDT news666270301 The universe's brightest lights have some dark origins Did you know some of the brightest sources of light in the sky come from the regions around black holes in the centers of galaxies? It sounds a little contradictory, but it's true. They may not look bright to our eyes, but satellites have spotted oodles of them across the universe. /news/2025-05-universe-brightest-dark.html Astronomy Thu, 01 May 2025 07:53:03 EDT news665304782 Scientists enhance localized surface plasmon resonance through oxide particle superlattices A research group led by Prof. Yang Liangbao from the Hefei Institutes of 鶹Ժical Science of the Chinese Academy of Sciences has enhanced localized surface plasmon resonance (LSPR) by studying Cu₂O₁₋ₓ superlattices with oxygen vacancies, providing new insights into vacancy doping in semiconductors and LSPR induction in metal oxide nanoparticles. The findings are published in Nano Letters. /news/2025-02-scientists-localized-surface-plasmon-resonance.html Nanophysics Nanomaterials Thu, 06 Feb 2025 12:44:03 EST news658068241 The hidden power of the smallest microquasars: Study finds evidence of particle acceleration Our home planet is bombarded with particles from outer space all the time. And while we are mostly familiar with the rocky meteorites originating from within our solar system that create fascinating shooting stars in the night sky, it's the smallest particles that help scientists to understand the nature of the universe. /news/2025-01-hidden-power-smallest-microquasars-evidence.html Astronomy Wed, 29 Jan 2025 09:55:51 EST news657366947 A CubeSat mission will detect X-rays from GRBs and black-hole mergers The long-awaited detection of gravitational waves has opened up a whole new world of astronomy. One of the key efforts is now to tie signals across multiple domains—for example, a gravitational wave and the associated electromagnetic radiation created by that same event, such as a black hole merger or a gamma-ray burst. /news/2025-01-cubesat-mission-rays-grbs-black.html Astronomy Wed, 08 Jan 2025 04:16:02 EST news655532157 M87's powerful jet unleashes rare gamma-ray outburst Also known as Virgo A or NGC 4486, M87 is the brightest object in the Virgo cluster of galaxies, the largest gravitationally bound type of structure in the universe. It came to fame in April 2019 after scientists from EHT released the first image of a black hole in its center. /news/2024-12-m87-powerful-jet-unleashes-rare.html Astronomy Fri, 13 Dec 2024 09:58:05 EST news653306281 Scientists control quantum states in new energy range An international team of scientists led by Dr. Lukas Bruder, junior research group leader at the Institute of 鶹Ժics, University of Freiburg, has succeeded in producing and directly controlling hybrid electron-photon quantum states in helium atoms. /news/2024-12-scientists-quantum-states-energy-range.html Optics & Photonics Quantum 鶹Ժics Thu, 12 Dec 2024 11:48:03 EST news653226481 Could interstellar quantum communications involve Earth or solve the Fermi paradox? Thus far, the search for extraterrestrial intelligence (SETI) has used strategies based on classical science—listening for radio waves, telescopes watching for optical signals, telescopes in orbit scouring light from the atmospheres of exoplanets, scanning for laser light that might come from aliens. Could a quantum mechanical approach do better? /news/2024-09-interstellar-quantum-communications-involve-earth.html Astrobiology Thu, 19 Sep 2024 09:15:54 EDT news645956146 Professor proposes how a black hole in orbit around a planet could be a sign of an advanced civilization In 1971, English mathematical physicist and Nobel-prize winner Roger Penrose proposed how energy could be extracted from a rotating black hole. He argued that this could be done by building a harness around the black hole's accretion disk, where infalling matter is accelerated to close to the speed of light, triggering the release of energy in multiple wavelengths. /news/2024-08-professor-black-hole-orbit-planet.html Astronomy Astrobiology Fri, 23 Aug 2024 11:44:03 EDT news643632241 New study examines the links between science fiction and astronomy "Today's science fiction is tomorrow's science fact." This quote, attributed to Isaac Asimov, captures science's intricate relationship with science fiction. And it is hardly a one-way relationship. /news/2024-08-links-science-fiction-astronomy.html Astronomy Mon, 12 Aug 2024 12:05:05 EDT news642683101 German scientists investigate supernova remnant SNR G309.8+00.0 at high energies Using Spektr-RG and Fermi space observatories, German astronomers have investigated the supernova remnant SNR G309.8+00.0 in X-rays and gamma rays. Results of the new study, presented June 25 on the preprint server arXiv, deliver important insights into the properties of this supernova remnant. /news/2024-07-german-scientists-supernova-remnant-snr.html Astronomy Tue, 02 Jul 2024 08:10:01 EDT news639112400 Fundamental spatial limits of all-optical magnetization switching Magnetization can be switched with a single laser pulse. However, it is not known whether the underlying microscopic process is scalable to the nanometer length scale, a prerequisite for making this technology competitive for future data storage applications. /news/2024-06-fundamental-spatial-limits-optical-magnetization.html Nanophysics Nanomaterials Thu, 27 Jun 2024 11:09:25 EDT news638705360 Revived technology used to count individual photons from distant galaxies Using an instrument on the 4.1-meter Southern Astrophysical Research Telescope, researchers have obtained the first astronomical spectrum using skipper charge-coupled devices (CCDs). /news/2024-06-revived-technology-individual-photons-distant.html Astronomy Mon, 24 Jun 2024 14:25:04 EDT news638457901 NASA, global astronomers await rare nova explosion Around the world this summer, professional and amateur astronomers alike will be fixed on one small constellation deep in the night sky. But it's not the seven stars of Corona Borealis, the "Northern Crown," that have sparked such fascination. /news/2024-06-nasa-global-astronomers-await-rare.html Astronomy Fri, 07 Jun 2024 12:36:59 EDT news636982613 Unveiling the microscopic mechanism of superconducting metallic transistors Transistors are the basis for microchips and the whole electronic industry. The invention of transistors, by Bardeen and Brattain in 1947, awarded with a Nobel prize, is regarded as one of the most important discoveries of the 20th century. /news/2024-05-unveiling-microscopic-mechanism-superconducting-metallic.html Condensed Matter Superconductivity Tue, 28 May 2024 09:28:40 EDT news636107308 Could alien solar panels be technosignatures? If alien technological civilizations exist, they almost certainly use solar energy. Along with wind, it's the cleanest, most accessible form of energy, at least here on Earth. Driven by technological advances and mass production, solar energy on Earth is expanding rapidly. /news/2024-05-alien-solar-panels-technosignatures.html Astronomy Astrobiology Thu, 23 May 2024 14:50:01 EDT news635693843 Fundamental and photodetector application of van der Waals Schottky junctions The junction composed of traditional metals and 2D semiconductors is a key component of semiconductor devices. /news/2024-05-fundamental-photodetector-application-van-der.html Condensed Matter Optics & Photonics Wed, 08 May 2024 14:45:28 EDT news634398326 Scientists reveal working mechanism of multilayer MoS₂ photodetector with broad spectral range and multiband response As a typical two-dimensional material, MoS2 exhibits unique optical and electrical properties due to its atomic thickness in the vertical dimension, making it a research hotspot in the field of optoelectronic detection. /news/2024-04-scientists-reveal-mechanism-multilayer-mos.html Nanophysics Nanomaterials Wed, 24 Apr 2024 12:27:48 EDT news633180465 Researchers create nanostructures for efficient and sustainable degradation of pollutants The need for sustainable and environment-friendly solutions has accelerated the global demand for green and renewable technologies. In this regard, semiconductor photocatalysts have emerged as an attractive solution, owing to their potential in mitigating pollutants and harnessing solar energy efficiently. Photocatalysts are materials that initiate chemical reactions when exposed to light. /news/2024-04-nanostructures-efficient-sustainable-degradation-pollutants.html Nanomaterials Wed, 24 Apr 2024 12:01:04 EDT news633178862 NASA's Fermi mission sees no gamma rays from nearby supernova A nearby supernova in 2023 offered astrophysicists an excellent opportunity to test ideas about how these types of explosions boost particles, called cosmic rays, to near light-speed. But surprisingly, NASA's Fermi Gamma-ray Space Telescope detected none of the high-energy gamma-ray light those particles should produce. /news/2024-04-nasa-fermi-mission-gamma-rays.html Astronomy Tue, 16 Apr 2024 12:51:04 EDT news632490661 ProtoDUNE's argon filling underway, a significant step toward next era of neutrino research CERN's Neutrino Platform houses a prototype of the Deep Underground Neutrino Experiment (DUNE) known as ProtoDUNE, which is designed to test and validate the technologies that will be applied to the construction of the DUNE experiment in the United States. /news/2024-04-protodune-argon-underway-significant-era.html General 鶹Ժics Fri, 12 Apr 2024 14:04:58 EDT news632149496 Testing begins on sensitive neutrino detector for nonproliferation and fundamental physics Neutrinos and antineutrinos are nearly massless particles produced in many nuclear reactions, including the fission of uranium in nuclear power plants on Earth and the fusion reactions at the core of the sun. /news/2024-03-sensitive-neutrino-detector-nonproliferation-fundamental.html General 鶹Ժics Tue, 26 Mar 2024 09:48:07 EDT news630665281 Weird electron behavior gets even weirder: Charge fractionalization observed spectroscopically A research team led by the Paul Scherrer Institute has spectroscopically observed the fractionalization of electronic charge in an iron-based metallic ferromagnet. Experimental observation of the phenomenon is not only of fundamental importance. Since it appears in an alloy of common metals at accessible temperatures, it holds potential for future exploitation in electronic devices. The discovery is published in the journal Nature. /news/2024-03-weird-electron-behavior-weirder-fractionalization.html Condensed Matter Quantum 鶹Ժics Wed, 06 Mar 2024 12:29:06 EST news628950541 How NASA chases and investigates bright cosmic blips Stephen Lesage's phone started vibrating just after halftime on Oct. 9, 2022, while he was watching a soccer game in Atlanta with a friend. When Lesage saw the incoming messages, the match no longer seemed important. There had been a rare cosmic event, and he needed to get to his computer immediately. /news/2024-01-nasa-bright-cosmic-blips.html Astronomy Space Exploration Wed, 24 Jan 2024 10:42:38 EST news625315153 Researchers develop technique to synthesize water-soluble alloy nanoclusters In recent years, ultrasmall metal nanoclusters have unlocked advances in fields ranging from bioimaging and biosensing to biotherapy, thanks to their unique molecular-like properties. /news/2024-01-technique-soluble-alloy-nanoclusters.html Bio & Medicine Nanomaterials Fri, 12 Jan 2024 14:30:03 EST news624292201 LST-1 discovers the most distant active galactic nucleus at very high energies On 15 December, the Large-Sized Telescope (LST) Collaboration announced through an Astronomer's Telegram (ATel) the detection of the source OP 313 at very high energies with the LST-1. Although OP 313 was known at lower energies, it had never been detected above 100 GeV, making this the LST-1's first scientific discovery. /news/2023-12-lst-distant-galactic-nucleus-high.html Astronomy Wed, 27 Dec 2023 10:11:39 EST news622894296 Data from Fermi Gamma-ray Space Telescope reveal gamma radiation pulses from Sagittarius A* A pair of astrophysicists at Universidad Nacional Autonoma de Mexico has found, via study of data from the low-Earth orbiting Fermi Gamma-ray Space Telescope, regular gamma radiation pulses emanating from around the black hole (at the center of the Milky Way galaxy Sagittarius A*). Gustavo Magallanes-Guijón and Sergio Mendoza have written a paper describing their findings, published on the arXiv preprint server. /news/2023-11-fermi-gamma-ray-space-telescope-reveal.html Astronomy Fri, 24 Nov 2023 06:10:01 EST news619887787 Ferroelectric modulation of Fermi level of graphene oxide to enhance SERS response Surface-enhanced Raman scattering (SERS) is a powerful fingerprint analysis and detection technique that plays an important role in the fields of food safety, environmental protection, bio-imaging and hazardous substance identification. Electromagnetic enhancement (EM) and chemical enhancement (CM) are the two recognized mechanisms of action for amplifying Raman signals. /news/2023-11-ferroelectric-modulation-fermi-graphene-oxide.html Condensed Matter Optics & Photonics Fri, 03 Nov 2023 12:12:11 EDT news618232328 A liquid water-molecule-based graphene heterogeneous photodetector and its application in an oximeter In the context of the development of smart health care towards digitalization, the new generation of photodetectors has a wide range of application prospects and huge market value. The characteristics of graphene material, such as large carrier mobility, excellent optical transparency and high mechanical strength, make it a favorite for the development of new generation photodetectors. /news/2023-11-liquid-water-molecule-based-graphene-heterogeneous-photodetector.html Bio & Medicine Nanomaterials Wed, 01 Nov 2023 10:34:04 EDT news618053641