Charmed Decay Hints at Standard Model Consistency
![The analysis simultaneously fits measured decay rates and forward-backward asymmetries of [latex]D^{0(+)}\to\bar{K}\ell^{+}\nu_{\ell}[/latex], demonstrating that inclusion of scalar current contributions is crucial for accurately modeling the ratios of differential decay rates [latex]\mathcal{R}_{\mu/e}[/latex].](https://arxiv.org/html/2601.21185v1/x754.png)
New measurements of D meson decays are providing crucial constraints on fundamental parameters and testing the limits of lepton flavor universality.
Terraria Explodes on Steam As Bigger and Boulder Update Drops
Terraria recently hit a peak of over 224,000 players on Steam, a number it hadn’t seen since May 2020 when a large update was released. Before that, the game reached 115,000 concurrent players in October 2022.
XRP in Turmoil: A Molière-Style Comedy of Coins
Ripple’s XRP, that fickle wretch of a token, did not escape the fashion of folly; it tumbled to its nadir since November 2024 (on most stalls of trade) at a touch above $1.50. Since that tumble, there hath been a modest recovery-now it sits beyond $1.60-but the sentiment remains draped in sombre velvet, bearish as a winter’s night.
Learning to Keep Systems Safe Without Knowing How They Work
![A safety filter, learned solely from system transitions, employs a safety critic to map states and constraints to safety valuations and their derivatives, which then inform a quadratic programming solver-in conjunction with initial reference inputs-to generate demonstrably safe control actions, as evidenced by its ability to stabilize an inherently unstable system even when subjected to aggressive [latex] \pm 1 [/latex] reference commands.](https://arxiv.org/html/2601.21297v1/Figures/Thumbnail_v5.png)
A new data-driven approach enables safe control of complex systems, even when their internal dynamics are unknown.
XRP Hammer Time? Or Just Another Nail in the Coffin?
Ripple (XRP) hit $1.5000, down 55% from its 2025 high. Ouch. Investors are crying into their lattes. Billions gone. But hey, at least they’ve got stories to tell at cocktail parties.
Heartopia Has New Codes That You Can Redeem Right Now
Heartopia, a free-to-play life simulation game, launched on January 17th. Developed by XD Inc. based in Shanghai, China, it’s available on PC through Steam, as well as on Android and iOS devices. Since its release, XD has regularly shared promo codes to give players small, temporary bonuses and keep them engaged.
Best JRPGs That Let You Create Your Own Character
In Persona 5, players form closer relationships with their teammates through dates and casual hangouts, which can even lead to romantic connections. Leaving aside traditional Japanese role-playing games, let’s explore some games inspired by Western culture that allow you to create your own character. We’ll also consider massively multiplayer online games and ‘Souls-like’ games, even those made in Japan, as they represent a different style than the games we’ll be focusing on.
Best Open-World RPGs With Base-Building
If you enjoy building bases in open-world RPGs as a fun side activity, here are some games you might like, tailored to different preferences. I’ve included sci-fi, post-apocalyptic, and medieval fantasy options, all with detailed open worlds offering diverse environments for your settlements. I’ll be ranking these games based on how robust and varied their base-building tools are.
Minecraft is Crossing Over With Bluey
Minecraft has been bringing popular franchises into its world through downloadable content (DLC). Past DLC packs have already featured characters and settings from The Smurfs, SpongeBob SquarePants, Super Mario, and more, offering players new skins and unique areas to explore. Now, Minecraft is adding Bluey and Bingo to the mix with a brand new Bluey-themed adventure.