Tootfinder

Für Trekkies:
Es gibt unbekannte Welten, seltsame Lebensformen und ein Schiff.
Besser als Discovery! (Ok, das ist auch nicht schwer.)
https://www.arte.tv/de/videos/104006-000-F/die-mysterioesen-ringe-vor-korsika/

Die mysteriösen Ringe vor Korsika - Die ganze Doku | ARTE
In den Gewässern nördlich von Korsika wurden in 120 Metern Tiefe auf einer ausgedehnten Sandfläche Hunderte von riesigen Ringen entdeckt. Wie sind diese bizarren kreisförmigen Gebilde entstanden? Das will der Meeresbiologe, Taucher und preisgekrönte Unterwasserfotograf Laurent Ballesta mit einer hochmodernen Tiefseetauchstation herausfinden.

Hey! Just a quick snap from today's walk (okay about 4:30h) near #kirchseeon and #ebersberg.
It's been warm but really beautiful. A lot of shade, quite some old trees, lots of green 😊
I'm curious how the photos will turn out. - Now I'm thinking about tomorrow's a…

Investigating the 2024 swarm like activity offshore Kefalonia Island aided by Machine Learning algorithms
V. Anagnostou, E. Papadimitriou, V. Karakostas, T. Back
https://arxiv.org/abs/2505.17221

Investigating the 2024 swarm like activity offshore Kefalonia Island aided by Machine Learning algorithms
In March 2024, a swarm like seismic activity occurred north of Kefalonia Island, in the central Ionian Islands area. Following a machine-learning aided workflow, we compiled an enhanced seismic catalog of 2495 low to moderate magnitude earthquakes throughout a 2 month period. Spatiotemporal analysis reveals a narrow epicentral distribution of nearly E-W alignment, approximately 5km long, much longer than the length anticipated by common scaling laws for the aftershock area extension of the stro…

HST pre-imaging of a free-floating planet candidate microlensing event
Mateusz Kapusta, Przemek Mroz, Yoon-Hyun Ryu, Andrzej Udalski, Szymon Kozlowski, Sean Terry, Michal K. Szymanski, Igor Soszynski, Pawel Pietrukowicz, Radoslaw Poleski, Jan Skowron, Krzysztof Ulaczyk, Mariusz Gromadzki, Krzysztof Rybicki, Patryk Iwanek, Marcin Wrona, Mateusz J. Mr\'oz, Michael D. Albrow, Sun-Ju Chung, Andrew Gould, Cheongho Han, Kyu-Ha Hwang, Youn Kil Jung, In-Gu Shin, Yossi Shvartzvald, Jennifer…

HST pre-imaging of a free-floating planet candidate microlensing event
High-cadence microlensing observations uncovered a population of very short-timescale microlensing events, which are believed to be caused by the population of free-floating planets (FFP) roaming the Milky Way. Unfortunately, the light curves of such events are indistinguishable from those caused by wide-orbit planets. To properly differentiate both cases, one needs high-resolution observations that would allow resolving a putative luminous companion to the lens long before or after the event. …

First positronium imaging using $^{44}$Sc with the J-PET scanner: a case study on the NEMA-Image Quality phantom
Manish Das, Sushil Sharma, Aleksander Bilewicz, Jaros{\l}aw Choi\'nski, Neha Chug, Catalina Curceanu, Eryk Czerwi\'nski, Jakub Hajduga, Sharareh Jalali, Krzysztof Kacprzak, Tevfik Kaplanoglu, {\L}ukasz Kap{\l}on, Kamila Kasperska, Aleksander Khreptak, Grzegorz Korcyl, Tomasz Kozik, Karol Kubat, Deepak Kumar, Anoop Kunimmal Venadan, Edward Lisowski, Filip Lisowski, Ju…

First positronium imaging using $^{44}$Sc with the J-PET scanner: a case study on the NEMA-Image Quality phantom
Positronium Lifetime Imaging (PLI), an emerging extension of conventional positron emission tomography (PET) imaging, offers a novel window for probing the submolecular properties of biological tissues by imaging the mean lifetime of the positronium atom. Currently, the method is under rapid development in terms of reconstruction and detection systems. Recently, the first in vivo PLI of the human brain was performed using the J-PET scanner utilizing the $^{68}$Ga isotope. However, this isotope …