Tootfinder

In #Osnabrück demonstrieren wir heute für Frieden. Der #AntiKriegstag erinnert an den Überfall Deutschlands auf Polen zum Anfang des 2. Weltkrieges am 1. September 1939. Das wollen wir nicht wieder. Deshalb auf die Straße für friedliches Zusammenlegen anstatt Überfälle, Töten und Zerstörung. D…

Das #Rezept des Tages:
#Bananenpfannkuchen für den süßen Start in den Tag! 🍌🥞 Überreife #Bananen müssen schnell aufgebraucht werden, sonst sind sie nur noch Matsch. Außerdem lauern die

Bananenpfannkuchen
Leckerei für Leute, die gern süßes zum Frühstück essen oder nachmittags dem süßen Zahn Futter geben möchten.Wer oft Bananen viele Bananen kauft, hat am Ende der Woche manchmal so braune weiche Bananen übrig....

Larry Ellison (Oracle-Chef und Trump-Freund) träumt von der totalen Überwachung: Bürger „werden sich benehmen“, weil jeder Schritt gefilmt, analysiert, gemeldet wird. Klingt mehr nach Orwells #1984 als nach Fortschritt. Mehr Kameras bedeuten nicht mehr Gerechtigkeit, sondern mehr Machtkonzentration. Autor Christiaan Hetzner zieht Parallelen zu Chinas Sozialkreditsystem. | Fortune

Auf Phoenix gerade eine Sendung über die 90er, die verständlicher Weise mit der Wieder­vereinigung beginnt.
Und die Erinnerung an die DDR besteht aus rationierten Bananen und dem Wunsch nach Westprodukten. Reisefreiheit am Rande, hingegen das Regime, Stasi, Repressionen, keine Meinungsfreiheit, keine freien Wahlen etc kommt in den Erzählungen gar nicht. Und das erzählt auch etwas über die Wahrnehmung und kann helfen, zu verstehen.
Und oben drauf die Hyänen des westlichen Raubtier…

Ultra-long Gamma-ray Bursts from Micro-Tidal Disruption Events: The Case of GRB 250702B
Paz Beniamini, Hagai B. Perets, Jonathan Granot
https://arxiv.org/abs/2509.22779 https://…

Ultra-long Gamma-ray Bursts from Micro-Tidal Disruption Events: The Case of GRB 250702B
Ultra-long gamma-ray bursts (ULGRBs), a rare class of high-energy transients with durations $>10^3$,s, remain poorly understood. GRB,250702B ($z=1.04$) is notable for its multi-hour prompt emission, an X-ray precursor $\sim$1 day earlier, off-nuclear host position, and hard, rapidly variable gamma-rays. This combination is difficult to explain with standard ULGRB progenitors such as blue-supergiant collapsars, magnetar engines, or white-dwarf tidal disruptions by intermediate-mass black holes. …

🍙 'Biomining' seaweed explored for critical minerals to improve domestic supply chains
https://phys.org/news/2025-08-biomining-seaweed-explored-critical-minerals.html

'Biomining' seaweed explored for critical minerals to improve domestic supply chains
In a bright, open laboratory nestled along Washington State's Sequim Bay, among rows of glassware filled with seawater and green and purple seaweed, researchers are investigating a new way to produce the critical minerals that are vital to everyday life.

Optical/infrared observations of the extraordinary GRB 250702B: a highly obscured afterglow in a massive galaxy consistent with multiple possible progenitors
Jonathan Carney, Igor Andreoni, Brendan O'Connor, James Freeburn, Hannah Skobe, Lewi Westcott, Malte Busmann, Antonella Palmese, Xander J. Hall, Ramandeep Gill, Paz Beniamini, Eric R. Coughlin, Charles D. Kilpatrick, Akash Anumarlapudi, Nicholas M. Law, Hank Corbett, Tomas Ahumada, Ping Chen, Christopher Conselice, Guillermo D…

Optical/infrared observations of the extraordinary GRB 250702B: a highly obscured afterglow in a massive galaxy consistent with multiple possible progenitors
GRB 250702B was the longest gamma-ray burst ever observed, with a duration that challenges standard collapsar models and suggests an exotic progenitor. We collected a rich set of optical and infrared follow-up observations of its rapidly fading afterglow using a suite of telescopes including the W. M. Keck Observatory, the Gemini telescopes, the Magellan Baade Telescope, the Victor M. Blanco 4-meter telescope, and the Fraunhofer Telescope at Wendelstein Observatory. Our analysis reveals that th…

Comprehensive X-ray Observations of the Exceptional Ultra-long X-ray and Gamma-ray Transient GRB 250702B with Swift, NuSTAR, and Chandra: Insights from the X-ray Afterglow Properties
Brendan O'Connor, Ramandeep Gill, James DeLaunay, Jeremy Hare, Dheeraj Pasham, Eric R. Coughlin, Ananya Bandopadhyay, Akash Anumarlapudi, Paz Beniamini, Jonathan Granot, Igor Andreoni, Jonathan Carney, Michael J. Moss, Ersin G\"o\u{g}\"u\c{s}, Jamie A. Kennea, Malte Busmann, Simone Dichiara, …

Comprehensive X-ray Observations of the Exceptional Ultra-long X-ray and Gamma-ray Transient GRB 250702B with Swift, NuSTAR, and Chandra: Insights from the X-ray Afterglow Properties
GRB 250702B is an exceptional transient that produced multiple episodes of luminous gamma-ray radiation lasting for $>25$ ks, placing it among the class of ultra-long gamma-ray bursts (GRBs). However, unlike any known GRB, a soft X-ray precursor was discovered by the Einstein Probe up to 24 hours before the gamma-ray triggers. We present comprehensive X-ray observations of the transient's afterglow obtained with the Neil Gehrels Swift Observatory, the Nuclear Spectroscopic Telescope Array, and …

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star
Eliza Neights, Eric Burns, Chris L. Fryer, Dmitry Svinkin, Suman Bala, Rachel Hamburg, Ramandeep Gill, Michela Negro, Megan Masterson, James DeLaunay, David J. Lawrence, Sophie E. D. Abrahams, Yuta Kawakubo, Paz Beniamini, Christian Aa. Diget, Dmitry Frederiks, John Goldsten, Adam Goldstein, Alexander D. Hall-Smith, Erin Kara, Alison M. Laird, Gavin P. Lamb, Oliver J. Roberts, Ryan Seeb, V. Ashley Villar,…

GRB 250702B: Discovery of a Gamma-Ray Burst from a Black Hole Falling into a Star
Gamma-ray bursts are the most luminous electromagnetic events in the universe. Their prompt gamma-ray emission has typical durations between a fraction of a second and several minutes. A rare subset of these events have durations in excess of a thousand seconds, referred to as ultra-long gamma-ray bursts. Here, we report the discovery of the longest gamma-ray burst ever seen with a ~25,000 s gamma-ray duration, GRB 250702B, and characterize this event using data from four instruments in the Int…