this post was submitted on 21 Mar 2025
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Dark energy is weakening and the universe could (eventually) collapse, study says (www.npr.org)
submitted 8 months ago by Delta_V@lemmy.world to c/space@lemmy.world
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...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

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[โ€“] NocturnalMorning@lemmy.world 9 points 8 months ago

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.