A surprise DNA layer. DNA seems like a pretty straightforward code: three letters in, one amino acid out. Now, it turns out there's a hidden layer. Scientists have long known that different codons can spell the same thing, but not behave the same way. That's because of a protein that can spot "inefficient" genetic instructions and shut them down. While this is a subtle tweak to how cells read the code of life, it's one that could reshape how we understand everything from development to disease.
An out-of-nowhere router ban. The U.S. just quietly banned new models of all foreign-made WiFi routers ... and hardly anyone saw it coming. The sweeping FCC move expands what was once a narrow security concern into a rule that could seriously affect almost every major router brand on the market. The good news: For now, your current router is fine. But what happens when the rest of the world moves on to new hardware, and the U.S. doesn't? Only time will tell.
