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Gleich in die #Uckermark pendeln weil heute die Dachfenster für #project25 kommen ...

Searching for Dark Structures: A Comparison of Weak Lensing Convergence Maps and Lensing-Weighted Galaxy Density Maps
Soojin Kim, Ho Seong Hwang, Niall Jeffrey
https://arxiv.org/abs/2509.25836

Searching for Dark Structures: A Comparison of Weak Lensing Convergence Maps and Lensing-Weighted Galaxy Density Maps
We present the result of a comparison between the dark matter distribution inferred from weak gravitational lensing and the observed galaxy distribution to identify dark structures with a high dark matter-to-galaxy density ratio. To do this, we use weak lensing convergence maps from the Dark Energy Survey Year 3 data, and construct corresponding galaxy convergence maps at $z\lesssim1.0$, representing projected galaxy number density fluctuations weighted by lensing efficiency. The two maps show …

"Offshore windfarm projects may be exempted from new UK nature rules"
#UK #UnitedKingdom #Energy #Renewables

Im niedersächsischen #Ahnsbeck förderte das Projekt #DemoCELL bei einer #Geothermiebohrung über 1000 Kubikmeter heißes Thermalwasser aus rund 2500 Metern Tiefe.
Erste Messungen zeigen …

🫙 Light-triggered process lets 3D printers create custom glass structures without glue or high temperatures
https://techxplore.com/news/2025-09-triggered-3d-printers-custom-glass.html

Light-triggered process lets 3D printers create custom glass structures without glue or high temperatures
Researchers have developed the first binder-free method for 3D printing glass, using light to trigger a chemical reaction that directly forms silica structures without the need for organic additives or extreme heat. This breakthrough makes glass printing faster, cleaner, and more precise, with the potential to revolutionize fields from optics to medicine by enabling custom, high-performance glass components that were previously impossible to manufacture.

FIELDMAPS Data Release: Far-Infrared Polarization in the "Bones" of the Milky Way
Simon Coud\'e, Ian W. Stephens, Philip C. Myers, Nicole Karnath, Howard A. Smith, Andr\'es Guzm\'an, Jessy Marin, Catherine Zucker, B-G. Andersson, Zhi-Yun Li, Leslie W. Looney, Giles Novak, Thushara G. S. Pillai, Sarah I. Sadavoy, Patricio Sanhueza, Archana Soam

FIELDMAPS Data Release: Far-Infrared Polarization in the "Bones" of the Milky Way
Polarization observations of the Milky Way and many other spiral galaxies have found a close correspondence between the orientation of spiral arms and magnetic field lines on scales of hundreds of parsecs. This paper presents polarization measurements at 214 $μ$m toward ten filamentary candidate ``bones" in the Milky Way using the High-resolution Airborne Wide-band Camera (HAWC+) on the Stratospheric Observatory for Infrared Astronomy (SOFIA). These data were taken as part of the Filaments Ext…

Integrating noise into PhET simulations to promote student learning of measurement uncertainty
Qiaoyi Liu, Matthew Blackman, Gayle Geschwind, Catherine Carter, Katherine K. Perkins, H. J. Lewandowski
https://arxiv.org/abs/2509.25769

Integrating noise into PhET simulations to promote student learning of measurement uncertainty
Understanding concepts and practices of measurement uncertainty is a core competency of physicists and engineers, and many physics lab courses aim to have students learn these ideas. However, there is strong evidence that these goals are often not met. To address the challenge of improving students' proficiency with measurement uncertainty concepts and practices, we designed and developed a new PhET simulation, Projectile Data Lab (PDL), featuring statistical noise and measurement tools in the …

Exploring cosmological constraints on galaxy formation time
Agripino Sousa-Neto, Maria Aldin\^ez Dantas, Javier E. Gonz\'alez, Joel C. Carvalho, Jailson Alcaniz
https://arxiv.org/abs/2509.26611

Exploring cosmological constraints on galaxy formation time
The Universe consists of a variety of objects that formed at different epochs, leading to variations in the formation time which represents the time elapsed from the onset of structure formation until the formation time of a particular object. In this work, we present two approaches to reconstruct and constrain the galaxy formation time $t_f(z)$ using non-parametric reconstruction methods, such as Gaussian Processes (GP) and High-performance Symbolic Regression (SR). Our analysis uses age estim…

The Connection between Dusty Star-Forming Galaxies and the First Massive Quenched Galaxies
Pablo Araya-Araya, Rachel K. Cochrane, Laerte Sodr\'e Jr., Robert M. Yates, Christopher C. Hayward, Marcel P. van Daalen, Marcelo C. Vicentin, Bitten Gullberg, Francesco Valentino
https://arxiv.org/abs/2509.26646

The Connection between Dusty Star-Forming Galaxies and the First Massive Quenched Galaxies
High-redshift (z > 2) massive quiescent (MQ) galaxies provide an opportunity to probe the key physical processes driving the fuelling and quenching of star formation in the early Universe. Observational evidence suggests a possible evolutionary link between MQs and dusty star-forming galaxies (DSFGs; or submillimetre galaxies), another extreme high-redshift population. However, galaxy formation models have historically struggled to reproduce these populations - especially simultaneously - limit…