Researchers develop face 'e-tattoo' to track mental workload in high-stress jobs

Looks like Apple’s AirTags might be losing their grip on the tracking gadget market. A new, budget-friendly alternative—the KeySmart SmartCard—is gaining traction, especially since you can snag a three-pack for roughly the price of a single AirTag. It even works with Apple’s Find My network, making it a tempting swap for cost-conscious shoppers.

Editor’s Note: If you’ve been on the fence about buying AirTags because of the price, this could be a game-changer. It’s not just about saving money—it’s about accessibility. More affordable options mean more people can keep track of their stuff without breaking the bank. Plus, competition like this could push Apple (and others) to innovate or drop prices, which is always good for us.

Scientists discovered that a tiny genetic change—reducing copies of a single gene in the Yersinia pestis bacteria—made the Black Death plague less deadly over time. However, this tweak might have also helped the disease spread more easily, trading lethality for contagiousness.

Editor’s Note: This isn’t just ancient history—it’s a fascinating peek into how pathogens evolve. Understanding these genetic trade-offs could help us predict how modern diseases might change, and maybe even how to outsmart them. Plus, it’s a reminder that even the deadliest bugs don’t always stay that way.

The Blueair Classic Pro CP7i isn’t just another air purifier—it’s packing some serious germ-fighting tech. Unlike traditional models that rely solely on filters, this one uses a special violet-blue light (called HINS) to zap viruses and bacteria, making it a standout in the crowded air-purifier market. It’s also designed to run quietly, so it won’t disrupt your home’s vibe while keeping the air clean.

Editor’s Note: With growing concerns about indoor air quality—especially post-pandemic—this kind of innovation could be a game-changer for health-conscious households. If it lives up to the hype, the CP7i might set a new standard for how air purifiers tackle airborne germs, not just dust and allergens. Worth keeping an eye on if you’re in the market for cleaner, safer air.

Scientists have developed an AI-powered electrolyte "injection" that can potentially revive dead lithium-ion batteries—the kind used in electric vehicles (EVs). Instead of tossing out these spent batteries, this breakthrough could breathe new life into them, cutting down on waste and making EVs even more sustainable.

Editor’s Note: Dead EV batteries are piling up, and recycling them is tricky and expensive. If this AI-driven solution scales up, it could be a game-changer—reducing environmental waste, lowering costs, and keeping more batteries in circulation. That’s a win for both consumers and the planet.

Scientists are diving deep into the ethical and practical challenges of terraforming Mars—basically, turning the frigid, barren planet into a livable, Earth-like world. A fresh study doesn’t just daydream about it; it maps out the tough questions we’d need to answer first, like whether we even should alter another planet’s environment. It’s not just sci-fi anymore—it’s a serious debate with real stakes.

Editor’s Note: This isn’t just about rockets and robots—it’s about humanity’s future. If we’re serious about becoming a multi-planet species, we’ve got to wrestle with the ethics of playing planetary architect. The study pushes us to think harder about the consequences, making it more than just a tech discussion—it’s about responsibility, too.