{"paper":{"title":"Apocalypse When? Solar System Constraints on an Imminent Big Rip","license":"http://arxiv.org/licenses/nonexclusive-distrib/1.0/","headline":"Solar system dynamics set a 30-year lower limit on the time until any future Big Rip from phantom dark energy.","cross_cats":[],"primary_cat":"astro-ph.CO","authors_text":"Oem Trivedi, Robert J. Scherrer","submitted_at":"2026-05-13T15:53:57Z","abstract_excerpt":"Phantom dark energy models with an equation of state parameter $w < -1$ lead generically to a future big rip singularity, in which the dark energy density becomes infinite in a finite time. Current limits on dark energy constrain $w$ to be close to $-1$, and if $w$ is assumed constant, then a future big rip cannot occur in less than the order of a Hubble time in the future. However, many models allow $w$ to decrease rapidly with time. In that case, or if one assumes an additional phantom component with current energy density far below the dark energy density and $w << -1$, it is possible to ac"},"claims":{"count":4,"items":[{"kind":"strongest_claim","text":"Using solar system measurements, we are able to derive limits on the timescale for a future big rip independent of the dynamics of the phantom component. We obtain t_rip - t_0 > 30 years.","source":"verdict.strongest_claim","status":"machine_extracted","claim_id":"C1","attestation":"unclaimed"},{"kind":"weakest_assumption","text":"Solar system dynamics are sensitive to the behavior of phantom dark energy on timescales of decades rather than billions of years.","source":"verdict.weakest_assumption","status":"machine_extracted","claim_id":"C2","attestation":"unclaimed"},{"kind":"one_line_summary","text":"Solar system measurements set a lower bound of 30 years on the time until a possible Big Rip from phantom dark energy.","source":"verdict.one_line_summary","status":"machine_extracted","claim_id":"C3","attestation":"unclaimed"},{"kind":"headline","text":"Solar system dynamics set a 30-year lower limit on the time until any future Big Rip from phantom dark energy.","source":"verdict.pith_extraction.headline","status":"machine_extracted","claim_id":"C4","attestation":"unclaimed"}],"snapshot_sha256":"6888db7f07bee9c0fff980ef1730fbc199044dcedfb5c3139c1ddc66efe0c105"},"source":{"id":"2605.13705","kind":"arxiv","version":1},"verdict":{"id":"cfa65ba0-652a-42c7-8600-3d4f42619696","model_set":{"reader":"grok-4.3"},"created_at":"2026-05-14T17:36:38.969950Z","strongest_claim":"Using solar system measurements, we are able to derive limits on the timescale for a future big rip independent of the dynamics of the phantom component. We obtain t_rip - t_0 > 30 years.","one_line_summary":"Solar system measurements set a lower bound of 30 years on the time until a possible Big Rip from phantom dark energy.","pipeline_version":"pith-pipeline@v0.9.0","weakest_assumption":"Solar system dynamics are sensitive to the behavior of phantom dark energy on timescales of decades rather than billions of years.","pith_extraction_headline":"Solar system dynamics set a 30-year lower limit on the time until any future Big Rip from phantom dark energy."},"references":{"count":22,"sample":[{"doi":"","year":2002,"title":"R.R. Caldwell, Phys. Lett. B545, 23 (2002)","work_id":"3137b432-f318-4be8-b7f3-529a3be35ec6","ref_index":1,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2003,"title":"R.R. Caldwell, M. Kamionkowski, and N.N. Weinberg, Phys. Rev. Lett.91, 071301 (2003)","work_id":"226419c4-2e9d-48b2-aed5-1a100ba1f3d6","ref_index":2,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2003,"title":"P.H. Frampton and T. Takahashi, Phys. Lett. B557, 135 (2003)","work_id":"128524e0-146b-4822-8d4a-f5ff9792126a","ref_index":3,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2004,"title":"S. Nesseris and L. Perivolaropoulos, Phys. Rev. D70, 123529 (2004)","work_id":"45bab049-508e-4fc4-8087-a48992187dd5","ref_index":4,"cited_arxiv_id":"","is_internal_anchor":false},{"doi":"","year":2005,"title":"R.J. Scherrer, Phys. Rev. D71, 063519 (2005). 4","work_id":"4207df23-9de0-4824-9229-6dd25eb8f451","ref_index":5,"cited_arxiv_id":"","is_internal_anchor":false}],"resolved_work":22,"snapshot_sha256":"9c71ebac9f5d3071e99f9858c6529cf61dabfaa20db1202dd1c1253e5d454113","internal_anchors":0},"formal_canon":{"evidence_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"author_claims":{"count":0,"strong_count":0,"snapshot_sha256":"258153158e38e3291e3d48162225fcdb2d5a3ed65a07baac614ab91432fd4f57"},"builder_version":"pith-number-builder-2026-05-17-v1"}