Just when we thought the universe was set to expand forever, new research hints that dark energy—the mysterious force speeding up the cosmos—might actually be changing over time. If this keeps up, it could mean the universe won’t drift apart endlessly, but could eventually slow down or even collapse in a wild ‘Big Crunch.’ Cosmologists are both freaking out and excited, because this could totally rewrite how we think about the universe’s past and future! #Science #DarkEnergy #Cosmology