<ul><li>A new theory proposes that the expansion of the universe could stop.</li><li>Researchers suggest that dark energy might have switched directions and changed strength, potentially explaining discrepancies in cosmological observations.</li><li>The ΛCDM model, which includes dark energy and cold dark matter, has been successful in explaining various phenomena in the universe, but recent tensions have emerged.</li><li>This new model, although not grounded in known physics, offers a promising direction to explore the dynamic nature of dark energy and its effects on the universe.</li></ul>

Could the universe ever stop expanding? New theory proposes a cosmic 'off switch'

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