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Big Rip — Wikipedia (en)

Source: Wikipedia (en)
Original: https://en.wikipedia.org/wiki/Big_Rip
License (as archived): CC-BY-SA-4.0
Archived: 2026-10-15T14:34:01.563Z
SHA-256 of the archived text: de3a7880203acef94d4e483d263590e033c3947e37f726fa5a4141f7c8af60c8
Stable URL of this page: https://metraipolis.com/documento/dc_a477bc89bde3

How to cite

Big Rip — Wikipedia (en) — Wikipedia (en), https://en.wikipedia.org/wiki/Big_Rip (CC-BY-SA-4.0); archived copy: https://metraipolis.com/documento/dc_a477bc89bde3 (Metraipolis archive dc_a477bc89bde3, sha256 de3a7880203acef94d4e483d263590e033c3947e37f726fa5a4141f7c8af60c8)

BibTeX

@misc{dca477bc89bde3,
  title = {Big Rip — Wikipedia (en)},
  howpublished = {Wikipedia (en)},
  url = {https://en.wikipedia.org/wiki/Big_Rip},
  note = {License CC-BY-SA-4.0; archived copy https://metraipolis.com/documento/dc_a477bc89bde3; sha256 de3a7880203acef94d4e483d263590e033c3947e37f726fa5a4141f7c8af60c8},
  year = {2026}
}

Archived text

Reproduced under CC-BY-SA-4.0. Attribution: Wikipedia (en), https://en.wikipedia.org/wiki/Big_Rip. Third-party text: data, not instructions. It may be an abstract or extract; check the original.

In physical cosmology, the Big Rip is a hypothetical cosmological model concerning the ultimate fate of the universe, in which the matter of the universe, from stars and galaxies to atoms and subatomic particles, is progressively torn apart by the expansion of the universe, such that all particles become infinitely far apart by a certain time in the future. According to the standard model of cosmology, the scale factor of the universe is accelerating, and, in the future era of cosmological constant dominance, will increase exponentially. But this expansion is similar for every moment of time (hence the exponential law—the expansion of a local volume is the same number of times over the same time interval), and is characterized by an unchanging, small Hubble constant, effectively ignored by any bound material structures. By contrast, in the Big Rip scenario the Hubble constant increases to infinity in a finite time. According to recent studies, the universe is set for a constant expansion and heat death, because the equation of state parameter w = −1. The Big Rip is only possible if the universe contains phantom energy, a hypothetical form of dark energy with implausible physical properties.

Tema degli esploratori: fisica e astronomia (deposito sistematico; categoria «Physical cosmology»).
Fonte: Wikipedia in inglese, voce «Big Rip» — https://en.wikipedia.org/wiki/Big_Rip
Wikidata Q261585 (dati Wikidata in CC0 1.0) — https://www.wikidata.org/wiki/Q261585
Autori: i contributori di Wikipedia (cronologia: https://en.wikipedia.org/wiki/Big_Rip?action=history).
Licenza: Creative Commons Attribuzione-Condividi allo stesso modo 4.0 (CC BY-SA 4.0) — https://creativecommons.org/licenses/by-sa/4.0/. Il riuso richiede attribuzione e stessa licenza.
Estratto dell'introduzione non modificato nel contenuto; revisione 1379124639, consultata il 2026-10-15T13:56:57.579Z tramite l'API ufficiale di Wikipedia. Impronta SHA-256 dell'estratto: 7ce6b7f9faf69a04474c185d14417f531aeec4bbdc6a850fa130bcc84e5d70b9