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New study suggests universe's expansion varies by region density, not dark energy, based on nearby supernova data.
A new study challenges the idea that dark energy is causing the universe's expansion to speed up.
Instead, it proposes the Timescape model, suggesting that expansion speeds vary based on the density of different regions, with more empty areas expanding faster.
This model better explains some nearby supernova data than the standard Lambda-CDM model, which relies on dark energy.
Though intriguing, the study's findings are preliminary and need further validation with more comprehensive data.
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Nuevo estudio sugiere que la expansión del universo varía según la densidad de la región, no la energía oscura, basada en datos de supernovas cercanas.