…Scientists have believed dark energy was a “cosmological constant,” but it is actually changing over time in unexpected ways…current data shows that, at the beginning of the universe, dark energy was very strong. But it has weakened with time and will continue to do so…The new research builds on data released from DESI in April 2024 that found signs that dark energy was changing. DESI has been surveying the universe for four years and an analysis of five years’ worth of data is next for its research
I wonder if its a result of the topography of spacetime? Like, if we were to assume the universe is toroidial, and then superimpose a coordinate system over the torus where each point on the grid is one Plank-legnth from its neighbors, I wonder if the distance between grid squares would look bigger at the outside edge of the torus than in the central funnel? If Earth were near the center, then when we look outward/backward we’d observe objects apparent acceleration outward even though from the perspective of those objects themselves they are jumping from grid square to grid square at a constant rate.
The way the expansion of the universe works is that every point in space is expanding, think of it like a balloon, every point stretches. Our current understanding is that there is no center of the universe, which means from every objects point of view, space is expanding away from them. This does open up some interesting questions about dark energy, but I’m not sure we can consider space static like you’re saying here with just varying lengths between points.