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Astronomers gaze into the 'Crystal Ball Nebula' and see a vision of our dying sun — Space photo of the week
Astronomers gaze into the 'Crystal Ball Nebula' and see a vision of our dying sun — Space photo of the week The Crystal Ball Nebula has captivated astronomers for more than 200 years, and it offers a bittersweet glimpse of a dying star system similar to our own. Quick facts What it is: NGC 1514, the Crystal Ball Nebula Where it is: About 1,500 light-years from Earth, in the constellation Taurus When it was shared: May 21, 2026 Hidden in the night sky, just above the hump of Taurus, is a...
Crystal Palace agree deal in principle for Lens boss Sage
Pierre Sage: Crystal Palace agree deal in principle for RC Lens coach to take over as Oliver Glasner's replacement Andoni Iraola was Crystal Palace's primary target to replace Oliver Glasner before Liverpool moved to appoint him; the Eagles have stepped up interest in Lens coach Pierre Sage and have agreed a deal in principle; Sage is set to sign a three-year deal with the option of another year Tuesday 9 June 2026 15:00, UK Crystal Palace have agreed a deal in principle for Pierre Sage to...
Learning Thermoelectric Transport from Crystal Structures via Multiscale Graph Neural Network
arXiv:2512.06697v3 Announce Type: replace-cross Abstract: Graph neural networks (GNNs) are designed to extract latent patterns from graph-structured data, making them particularly well suited for crystal representation learning. Here, we propose a GNN model tailored for estimating electronic transport coefficients in inorganic thermoelectric crystals. The model encodes crystal structures and physicochemical properties in a multiscale manner, encompassing global, atomic, bond, and angular levels.
Light pulses uncover Higgs mode that reshapes perovskite crystal symmetry
Light pulses uncover Higgs mode that reshapes perovskite crystal symmetry Sadie Harley Scientific Editor Robert Egan Associate Editor Waves of light and sound interact to drive electronic and structural changes in a perovskite crystal. At the atomic scale, nothing is ever truly still. Materials that appear perfectly rigid and motionless to the naked eye are in fact swarms of vibrating atoms.
Statistical orientation and distribution of columnar ice crystals in turbulent flows
Announce Type: new Abstract: We study the motion of columnar ice crystals that form in clouds over a range of low temperature. Our focus here is on elongated ice crystals, which are smaller than the size of the smallest eddies in the flow, with a moderate aspect ratio comprised between $3$ and $5$. We determine turbulent solutions of the Navier-Stokes equations over a range of turbulent kinetic energy dissipation characteristic of clouds ($4.41\;{\rm cm}^2/{\rm s}^3 \le \varepsilon \le...
MechLens: Late Crystallization of Factual Knowledge Explains Intervention Effectiveness in Language Models
arXiv:2606.07978v1 Announce Type: new Abstract: Understanding where LLMs store factual knowledge is critical for hallucination mitigation. We systematically quantify Late Crystallization: factual knowledge does not gradually emerge across layers but "crystallizes" abruptly at the final layers.
Effect of introducing viscoelastic polyurethane on the dispersion and vibration isolation efficiency of chiral phononic crystals
arXiv:2606.01272v1 Announce Type: new Abstract: Phononic crystals, a sequence of masses and (damped) springs, are being used more and more in practical applications, exploiting Bragg bandgaps to attenuate vibration transmission in a wide frequency range. In particular, chiral phononic crystals have demonstrated their ability to achieve low frequency bandgaps while maintaining a high static stiffness, and thus load bearing capacities. However, tuning of the bandgap frequencies is non-trivial...
Soliton crystal formation in Kerr cavities with an avoided mode crossing: a theoretical study
arXiv:2606.03202v1 Announce Type: new Abstract: We theoretically and numerically investigate the formation of soliton crystals in Kerr microresonators in the presence of an avoided mode crossing (AMX). Our study combines dynamical simulations based on a modified Lugiato-Lefever equation (LLE) with a stability analysis of its stationary solutions. We show that, depending on its strength and spectral position, the AMX can either stabilize otherwise unstable soliton crystals or induce Turing...
Fast Organic Crystal Structure Prediction with Unit Cell Flow Matching
arXiv:2606.03199v1 Announce Type: cross Abstract: Organic crystal structure prediction (CSP) is a requirement for computational modelling of organic solids, but traditionally costs several CPU-years per molecule. Generative models such as OXtal dramatically reduce this cost by sampling stable organic crystal structures directly. However, OXtal forgoes explicit lattice parametrization in favour of modelling large crops of the bulk material with expensive triangle layers, which can incur a...
Fast Organic Crystal Structure Prediction with Unit Cell Flow Matching
arXiv:2606.03199v1 Announce Type: new Abstract: Organic crystal structure prediction (CSP) is a requirement for computational modelling of organic solids, but traditionally costs several CPU-years per molecule. Generative models such as OXtal dramatically reduce this cost by sampling stable organic crystal structures directly. However, OXtal forgoes explicit lattice parametrization in favour of modelling large crops of the bulk material with expensive triangle layers, which can incur a...