Dark Energy Is Not Constant: A New Look at the Universe's Acceleration ⚡ экспресс
Original: "Evidence of dynamical dark energy found via the DESI DR2 Lyman$$\alpha$$ forest"
Data from the DESI survey suggests that the mysterious force speeding up the cosmos may not be eternal or constant.
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The cosmos is expanding, and something unknown is pushing it ever more forcefully. New measurements with unprecedented precision show that dark energy isn't static—it's changing. If confirmed, our astronomy textbooks will have to be rewritten.
🎯 Quasar light leaves a 'road track' of hundreds of dark bands on the spectrum. Each band marks a hydrogen cloud, and its shift reveals the expansion rate at the moment the light passed it. It works like a cosmic speedometer from billions of years ago.
🎬 Science fiction writers eagerly imagine universes with changing physics. In Greg Bear's novel *Eon*, the variability of fundamental forces leads to disasters.