All articles tagged with #big crunch
A new study applying a hybrid axion dark energy model to Dark Energy Survey data hints that dark energy may be dynamic. If correct, this could cause the universe’s expansion to slow, halt, and reverse, leading to a Big Crunch about 33.3 billion years from now—much sooner than the trillion-year lifetime traditionally assumed—though the result depends on several variables and requires further verification.
A Cornell-led analysis proposes the expansion of the universe could be temporary and eventually reverse if the cosmological constant is negative, driven by an ultralight axion field. The model places the universe’s total lifespan at about 33.3 billion years, with a slow crunch starting in roughly 11 billion years and final collapse about 8 billion years later (around 19–20 billion years from now). If dark energy’s behavior continues to deviate from a true constant, this Big Crunch scenario could hold; upcoming surveys and missions (Euclid, Rubin Observatory, SPHEREx) are expected to refine measurements and test the idea.
New measurements from the Dark Energy Survey (DES) and DESI suggest the cosmological constant may be negative, causing the universe to keep expanding for about 11 billion more years before contracting to a Big Crunch roughly 20 billion years from now, for an approximate total lifespan of 33 billion years. The scenario relies on evolving dark energy, potentially linked to a very light particle, and is consistent with observations from DES and DESI, with future surveys like Euclid, SPHEREx, and Rubin Observatory planned to test the idea.
A new study suggests that dark energy may be weakening, potentially leading to a reversal of the universe's expansion and a catastrophic collapse into a Big Crunch, challenging long-held scientific beliefs and sparking debate among astrophysicists.
Recent studies suggest that dark energy, which is driving the universe's expansion, may be weakening, potentially leading to a reversal of expansion and a possible 'Big Crunch' instead of the previously believed continuous acceleration. This challenges current cosmological models and has sparked significant debate among astronomers.
Recent observations suggest dark energy may be weakening, which could imply a potential, though currently unlikely, future scenario of a Big Crunch, but the evidence is not yet conclusive and further data is needed to determine the universe's ultimate fate.
A Cornell physicist suggests that based on new dark energy data, the universe will stop expanding in about 11 billion years and eventually collapse in a 'big crunch' roughly 20 billion years from now, indicating a possible end to the universe's lifespan.
Scientists propose a model where the universe could stop expanding and collapse into a Big Crunch in about 20 billion years, based on new data suggesting dark energy might be changing over time and a potential negative cosmological constant, challenging the idea of eternal expansion.
Physicists suggest that due to evolving dark energy and a negative cosmological constant, the universe may eventually stop expanding and collapse in about 20 billion years, potentially leading to a Big Crunch, with axions influencing this process.
Physicists suggest that if dark energy is evolving as recent data indicates, the universe may end in a Big Crunch in about 33.3 billion years, reversing its expansion due to a negative cosmological constant and the influence of ultralight axion particles, though this remains a hypothesis pending further data.
Physicists suggest that if dark energy is evolving as recent data indicates, the universe may end in a Big Crunch in about 20 billion years, reversing its expansion due to a negative cosmological constant and the influence of ultralight axion particles, though this remains a hypothesis pending further data.
New research suggests that the universe may not expand forever as previously thought, but could eventually collapse in a 'Big Crunch' due to a negative cosmological constant influenced by axion dark energy, with this event potentially occurring in about 20 billion years.
A new study suggests the universe may not expand forever but could eventually reverse and collapse in a 'big crunch' in about 33 billion years, based on a model involving a negative cosmological constant and dark energy dynamics, challenging previous assumptions of endless expansion.
A Cornell physicist's new analysis suggests that the universe, currently expanding, will eventually reverse and collapse in a 'big crunch' about 20 billion years from now, based on recent dark energy data indicating a negative cosmological constant.
A new theoretical model suggests the universe may start collapsing in about 10 billion years, significantly sooner than previous estimates, due to the potential negative value of dark energy, which could lead to a Big Crunch. However, the true fate of the universe remains uncertain, with other theories proposing much longer timelines or different end scenarios.