
The Cosmological Constant Might Not Be So Constant
Posted on 25th Jul 2025
Dark energy – the stuff causing the Universe to expand at an accelerating rate – makes up about 68% of the Universe. It's thought to be a cosmological constant, a single value of something like \(10^{-52}\) \(\mathrm{m^{-2}}\), and it's baked right into our best model of the Universe1. But...