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Engaging look at friction shows how it keeps our world rubbing along

New Scientist

How much do you know about friction? Jennifer R. Vail's charming, if sometimes technical, biography of the force showcases its amazing and largely overlooked role in everything from climate change to dark matter, says Karmela Padavic-Callaghan IN 2009, World Aquatics banned a specific type of swimsuit from all international competitions in water sports, ruling that it gave athletes an unfair advantage. The development of this swimsuit included using NASA's testing facilities and sophisticated computer software. Some versions had ultrasonically welded seams instead of traditional stitches. Swimmers who wore the suit broke 23 of the 25 world records set at the Beijing Olympics in 2008.


See dark matter like NEVER before: NASA reveals one of the most detailed maps of the elusive substance yet - confirming its vital influence on the universe

Daily Mail - Science & tech

Republican Governor rips Trump for'MURDER' in Minneapolis as GOP erupts at ICE scandal Seven dead in private jet crash as audio reveals voice said'Let there be light' seconds before tragedy at snowy Maine airport Is Angelina Jolie quitting America? Private struggles emerge... as actress weighs major lifestyle that threatens to rupture her family Inside the secret double life of a beloved neurosurgeon whose gay love triangle ended... in an execution at his $2.5M mansion Queer Eye snitch reveals exactly what was said about Karamo Brown in a hot mic moment... that's torn the cast apart Kate Hudson's Oscar nomination torched as an'abomination' amid toxic family feud over Song Sung Blue Mystery of Egypt's Giza pyramids deepens as hidden megastructure 4,000 feet below is revealed America's best and worst states to retire revealed - and why Florida is no longer the obvious winner Prince Harry and Meghan Markle's Sundance screening sparks online row: 'Sussex Squad' brand claims event failed to sell out as'lies' despite photos showing'rows of empty seats' Kristi Noem's VERY unfortunate post shortly before Trump sent Tom Homan to Minneapolis to clean up mess after she lied about protester shot dead by her DHS officers NFL's'scripted' conspiracy theory resurfaces as fans find five-month old post hinting at Super Bowl 60 matchup Forensic video analysis of Alex Pretti's final 30 seconds exposes'John Wayne gun' question that can't be ignored Victoria and David Beckham make first public appearance together since son Brooklyn's damning statement as children Cruz, Romeo and Harper turn up to support her as she becomes a Knight of the Order of Arts and Letters Kristi Noem is dealt hammer blow live on Fox News as Trump lawyer trashes claim Minneapolis victim Alex Pretti was'domestic terrorist' Lauren Sanchez turns heads in a red skirt suit as she holds hands with billionaire husband Jeff Bezos at Schiaparelli's Paris Haute Couture Fashion Week show NASA has revealed one of the most detailed maps of dark matter yet. Taken by the James Webb Space Telescope, the map suggests the elusive substance acts as a hidden framework on which entire galaxies are built. According to researchers from Durham University, it could help to unravel the mystery of the formation of our Milky Way - as well as planet Earth. 'Wherever you find normal matter in the Universe today, you also find dark matter,' explained Professor Richard Massey, co-author of the study.


Mysterious space object is full of dark matter

Popular Science

The failed star factory is nicknamed'Cloud-9.' This image shows the location of Cloud-9, which is 2000 light-years from Earth. The diffuse magenta is radio data from the ground-based Very Large Array (VLA) showing the presence of the cloud. The dashed circle marks the peak of radio emission, which is where researchers focused their search for stars. Breakthroughs, discoveries, and DIY tips sent every weekday.


Inside the wild experiments physicists would do with zero limits

New Scientist

From a particle smasher encircling the moon to an "impossible" laser, five scientists reveal the experiments they would run in a world powered purely by imagination In physics, breakthroughs are rare. Experiments are slow, expensive and often end up refining, rather than rewriting, our understanding of the universe. But what if the only constraint on scientific ambition were imagination? We asked five physicists to describe the kind of experiment they would do if they didn't have to worry about budgets, engineering limitations or political realities. Not because we expect any of it to happen soon - though in a few cases, momentum is building - but because it is revealing to see where their minds go when the usual boundaries are stripped away. One researcher wants to launch radio telescopes deep into space to probe dark matter with cosmic energy flashes. Others are dreaming of completely new kinds of particle accelerator or lasers that push the at bounds of the possible.


Masked Autoencoder Pretraining on Strong-Lensing Images for Joint Dark-Matter Model Classification and Super-Resolution

Prasha, Achmad Ardani, Rachmadi, Clavino Ourizqi, Syahlan, Muhamad Fauzan Ibnu, Anugerah, Naufal Rahfi, Raditya, Nanda Garin, Amelia, Putri, Mutiara, Sabrina Laila, Ramadhan, Hilman Syachr

arXiv.org Artificial Intelligence

Strong gravitational lensing can reveal the influence of dark-matter substructure in galaxies, but analyzing these effects from noisy, low-resolution images poses a significant challenge. In this work, we propose a masked autoencoder (MAE) pretraining strategy on simulated strong-lensing images from the DeepLense ML4SCI benchmark to learn generalizable representations for two downstream tasks: (i) classifying the underlying dark matter model (cold dark matter, axion-like, or no substructure) and (ii) enhancing low-resolution lensed images via super-resolution. We pretrain a Vision Transformer encoder using a masked image modeling objective, then fine-tune the encoder separately for each task. Our results show that MAE pretraining, when combined with appropriate mask ratio tuning, yields a shared encoder that matches or exceeds a ViT trained from scratch. Specifically, at a 90% mask ratio, the fine-tuned classifier achieves macro AUC of 0.968 and accuracy of 88.65%, compared to the scratch baseline (AUC 0.957, accuracy 82.46%). For super-resolution (16x16 to 64x64), the MAE-pretrained model reconstructs images with PSNR ~33 dB and SSIM 0.961, modestly improving over scratch training. We ablate the MAE mask ratio, revealing a consistent trade-off: higher mask ratios improve classification but slightly degrade reconstruction fidelity. Our findings demonstrate that MAE pretraining on physics-rich simulations provides a flexible, reusable encoder for multiple strong-lensing analysis tasks.


Dark matter is seen for the first time: Eerie image shows first direct evidence of the elusive substance that makes up 25% of the universe

Daily Mail - Science & tech

Karoline Leavitt's family member'abruptly arrested' by ICE after living in US for decades Residents in liberal Western US city feel'isolated' as state turns extremely red What HAS happened to Beyoncé? Suddenly desperate, I know what's really going on... and it's ugly: CAROLINE BULLOCK LIZ JONES: Sorry, but it's now time for Kate to stop making excuses'I fell for Joan the moment I saw her': The emotional love letter Sir Richard Branson penned to his'rock' on their anniversary - as he announces her death after 50 years together Ina Garten, 77, vulnerably addresses her decision not to have children: 'I can't imagine my life any other way' Sports broadcaster's wife suffers unimaginable tragedy just before he goes on air New'Hollywood of the South' emerges as booming industry generates $1bn... but long-time residents are furious University of Minnesota program offers guidelines to'reverse the whiteness pandemic' Emmy-winning CBS anchor reveals her devastating health battle: 'I've been silently struggling' Bethany MaGee's family issue heartbreaking statement about her injuries after devout Christian, 26, was set ablaze'by 72-time arrestee' on Chicago train Scientists have captured the first-ever direct evidence for dark matter, the elusive substance that makes up more than a quarter of the universe. Using NASA's Fermi telescope, researchers have detected powerful gamma-ray radiation emerging from a'halo-like' structure surrounding the Milky Way. Its frequency and intensity suggest that this could be dark matter. According to the study's author, Professor Tomonori Totani of the University of Tokyo, this eerie image is the first time that humanity has been able to'see' the mysterious substance.


c9f2f917078bd2db12f23c3b413d9cba-AuthorFeedback.pdf

Neural Information Processing Systems

We thank the reviewers for giving positive and insightful evaluations of our paper. Specific responses are given below. We will discuss these in our paper. Future work could replace Eureqa inside our framework with more sophisticated SR backends. This Eureqa alternative is optimized for rediscovering existing equations by, e.g., This approach does not seem applicable for discovering new equations so we chose Eureqa.


A tiny nearby galaxy is home to a shockingly enormous black hole

New Scientist

One of the Milky Way's smallest galactic neighbours seems to have a supermassive black hole at its centre, upending assumptions that it was dominated by dark matter A nearby galaxy once thought to be dominated by dark matter seems to have a surprise supermassive black hole at its centre. Segue 1 is barely a galaxy, with only about 1000 stars compared to the Milky Way's hundreds of billions, and yet it appears to be home to a black hole about 10 times as massive as all its stars combined. Segue 1 and other similar dwarf galaxies do not have enough stars to provide the gravity needed to hold them all together. To solve that problem, physicists have long assumed they were chock-full of the mysterious substance called dark matter, which we can't see but that could generate the extra gravity. So when Nathaniel Lujan at the University of Texas at San Antonio and his colleagues began testing computer models of Segue 1, they expected the best-fitting model would be one dominated by dark matter.


Dark matter does NOT exist - and is simply an illusion, scientist controversially claims

Daily Mail - Science & tech

Shroud of Turin mystery deepens as surgeon spots hidden detail that points to Jesus' resurrection I was so happy after trying a trendy new cosmetic procedure. But 10 years later I suffered a devastating side effect... the doctor had lied I'm no longer sleeping with my husband - and never will again, says MOLLY RYDDELL. I love him, but counted down the moments until he climaxed. Then I couldn't bear it any more and the truth spilled out... so many women feel the same The'middle-class kinks' saving marriages: Wives reveal the eight buzzy sex trends that revived their lagging libidos - including the fantasy husbands are secretly obsessed with Lori Loughlin's husband Mossimo Giannulli seen with mystery brunette in tiny skirt day after shock split I'm a woman with autism... here are the signs you might be masking, even from yourself Cake-faced 90s sitcom star looks unrecognizable as she ditches the heavy eyeshadow for an LA errand run can you guess who? Trump dollar coin design released by Treasury... and it's inspired by the most iconic political photo of the century I've loved Taylor Swift for years. Mystery deepens over Hulk Hogan's death as his widow faces fresh anguish Body count from Houston's bayous rises as serial killer whispers grip city and residents are told: 'Be vigilant' Prison chief reveals exactly where Diddy could end up... and the one horrifying jail he MUST avoid The quest to understand dark matter and dark energy is one of modern science's most perplexing questions.


Shedding Light on Dark Matter at the LHC with Machine Learning

Arganda, Ernesto, Rios, Martín de los, Perez, Andres D., Roy, Subhojit, Seoane, Rosa M. Sandá, Wagner, Carlos E. M.

arXiv.org Artificial Intelligence

We investigate a WIMP dark matter (DM) candidate in the form of a singlino-dominated lightest supersymmetric particle (LSP) within the $Z_3$-symmetric Next-to-Minimal Supersymmetric Standard Model. This framework gives rise to regions of parameter space where DM is obtained via co-annihilation with nearby higgsino-like electroweakinos and DM direct detection~signals are suppressed, the so-called ``blind spots". On the other hand, collider signatures remain promising due to enhanced radiative decay modes of higgsinos into the singlino-dominated LSP and a photon, rather than into leptons or hadrons. This motivates searches for radiatively decaying neutralinos, however, these signals face substantial background challenges, as the decay products are typically soft due to the small mass-splits ($Δm$) between the LSP and the higgsino-like coannihilation partners. We apply a data-driven Machine Learning (ML) analysis that improves sensitivity to these subtle signals, offering a powerful complement to traditional search strategies to discover a new physics scenario. Using an LHC integrated luminosity of $100~\mathrm{fb}^{-1}$ at $14~\mathrm{TeV}$, the method achieves a $5σ$ discovery reach for higgsino masses up to $225~\mathrm{GeV}$ with $Δm\!\lesssim\!12~\mathrm{GeV}$, and a $2σ$ exclusion up to $285~\mathrm{GeV}$ with $Δm\!\lesssim\!20~\mathrm{GeV}$. These results highlight the power of collider searches to probe DM candidates that remain hidden from current direct detection experiments, and provide a motivation for a search by the LHC collaborations using ML methods.