Hidden fifth force may lurk in solar system despite Einstein's precision tests

For generations, physicists have trusted Einstein's gravity as the final word within our solar system — yet the universe at its largest scales refuses to obey. A new analysis by NASA's Slava Turyshev suggests a fifth force tied to dark energy may not be absent from our cosmic neighborhood, but merely hiding, suppressed by mechanisms that allow it to whisper where it once might have shouted. The solar system, long treated as a graveyard for exotic physics, may instead be a place where only the faintest traces of something stranger can survive — and where, with the right instruments and the righ