{"id":"70c90010-8035-4e84-b958-fa2a41e37bf5","arxiv_id":"2607.11531","paper_version":1,"verdict":"ACCEPT","confidence":"HIGH","novelty_score":2.0,"correctness_risk":"low","formal_verification":"none","parameter_count":0,"one_line_summary":"Rocky exoplanet atmospheric composition encodes interior, surface, escape, photochemical, and biological history, so coupled-process models are required to interpret mass-radius and spectral data.","lead":"This review maps how rocky exoplanet atmospheres form, escape, and evolve through interior, surface, and biological interactions. It equips observers to interpret upcoming spectra as probes of planetary interiors and habitability.","discovery_kind":"review","skeptic_critique":{"model":"grok-4.5","headline":"Extrapolation of solar-system/lab parameterizations (η, fO2, solubilities, weathering) to exoplanet regimes is the softest link for the claim that atmospheres constrain interiors.","rationale":"The paper is a transparent, well-structured review that correctly frames the multi-process problem and itself enumerates the key limitations (§2.1.3 and related discussions). No new scientific result is claimed, so the low novelty and ACCEPT verdict are appropriate. The reader’s weakest-assumption statement already isolates the precise load-bearing point—the validity of the inherited parameterizations under exoplanet extrapolation. My concern is identical in substance; the concrete test simply operationalizes it. Because the review does not over-claim that the mapping is already robust, and because the literature synthesis is accurate, the concern does not warrant changing the verdict from ACCEPT.","tokens_in":55383,"tokens_out":558,"duration_ms":18506,"concrete_test":"Recompute a representative forward model cited for Fig. 4 or §2.2.1 (outgassing + energy-limited escape) for a 2–5 M⊕ planet around an early M dwarf, varying η across 1–20 % plus the harder-SED correction and shifting magma-ocean fO2 by ±2–3 log units around IW. If final atmospheric pressure, C/O or N2/CO2 ratios, or compositional class (oxidized vs reduced) change by more than an order of magnitude or flip class, the inversion for interior redox/volatiles is not robust under present uncertainties.","verdict_should_be":"UNCHANGED","load_bearing_attack":"The strongest claim—that rocky-exoplanet atmospheric composition constrains interior properties beyond mass/radius, once formation/escape/surface-interior/photochemistry/biology are accounted for—requires that the forward models of §§2–5 map observables invertibly onto interior state. Those models rest on solar-system and laboratory parameterizations (energy-limited η in Eq. 3 and its SED/gravity dependence; magma-ocean fO2 relative to IW; volatile solubilities; carbonate-silicate rates) that the review itself flags as extrapolated and poorly validated outside Earth-like T–P–redox–XUV ranges (§2.1.3 limitations; discussions of η, redox buffers, and hybrid atmospheres). If the parameterizations fail systematically for the super-Earth/M-dwarf/high-XUV targets that dominate near-term observations, the atmosphere-to-interior mapping becomes degenerate or biased, so the claimed diagnostic power does not hold under the conditions where it is most needed.","agreement_with_reader":"agree"},"referee_report":{"model":"grok-4.5","summary":"This review synthesizes the formation, loss, and long-term evolution of rocky exoplanet atmospheres, arguing that atmospheric composition can constrain interior properties beyond mass and radius once formation, escape, surface–interior exchange, photochemistry, and biology are jointly accounted for. It covers primordial H/He capture and pollution, impact/magma-ocean/volcanic secondary outgassing and redox control, thermal (boil-off, core-powered, photoevaporation) and non-thermal escape, solar-system and exoplanet observational diagnostics (including the radius valley), climate feedbacks (carbonate–silicate, water vapor/runaway greenhouse, ice–albedo, clouds), underrepresented N and S cycles, biosignatures and false positives, and upper-atmosphere photochemistry. The manuscript closes by stressing the need for co-evolution models and better laboratory constraints for future characterization missions.","tokens_in":55654,"tokens_out":1006,"duration_ms":9238,"significance":"If the synthesis holds, it supplies a timely, multi-process roadmap for interpreting JWST, PLATO, and future direct-imaging spectra of rocky worlds and for designing interior–atmosphere retrieval frameworks. Strengths include an explicit, well-referenced treatment of magma-ocean redox and outgassing (including the rule-of-thumb pressure estimates in Fig. 4), a clear distinction between thermal and non-thermal escape with solar-system rate benchmarks, and a careful discussion of O2/O3 and CH4 false positives that incorporates thermospheric XUV effects. The review is useful as a community reference even where it does not introduce new derivations.","major_comments":[{"comment":"The central claim (Abstract and §1) that atmospheric composition constrains interior state beyond mass/radius rests on invertibility of the forward models in §§2–5. Those models rely on solar-system/lab parameterizations (energy-limited η in Eq. 3 and its SED/gravity dependence; magma-ocean fO2 relative to IW; volatile solubilities; carbonate–silicate rates) that §2.1.3 itself flags as extrapolated and poorly validated outside Earth-like T–P–redox–XUV ranges. For the super-Earth/M-dwarf/high-XUV targets that dominate near-term observations, the review should state more explicitly where the atmosphere-to-interior mapping becomes degenerate or biased, and which observables (e.g., multi-species isotopic ratios, radius-valley architecture of multi-planet systems) remain robust under those failures.","section":null},{"comment":"§2.2.1 (core-powered mass loss / boil-off): the text correctly notes that analytical models based on Ginzburg et al. (2018) overestimate loss relative to Tang et al. (2024) and that opacity ratios matter (Misener et al. 2025), yet the subsequent discussion of the radius valley (§2.3.2) still treats core-powered and photoevaporation scenarios as comparably predictive. A short quantitative comparison of predicted valley location/slope under the revised numerical rates would strengthen the claim that escape sculpts the observed population.","section":null}],"minor_comments":[{"comment":"Fig. 3 caption and surrounding text: clarify whether the Ginzburg et al. (2016) and Mordasini (2020) curves assume the same disk lifetime and grain opacity; the plotted offset at 1 AU is otherwise hard to interpret.","section":null},{"comment":"Eq. (3): define FXUV explicitly in the equation (it appears only in the prose) and note the conventional range of η for secondary atmospheres, not only H-rich cases.","section":null},{"comment":"§3.5.1–3.5.2 (N and S cycles): a short table summarizing solar-system reservoir sizes and dominant fluxes would help readers compare the three terrestrial planets and Io.","section":null},{"comment":"Fig. 10: the LUVOIR/HWO transmission spectra are illustrative; state the assumed atmospheric profiles and haze treatment so the figure can be reproduced or updated.","section":null},{"comment":"Scattered typographical issues (e.g., missing spaces after periods in the Abstract, inconsistent use of ‘Gyr’ vs ‘Gyr ago’) should be cleaned in copy-editing.","section":null}],"recommendation":"minor_revision","confidential_remarks":"The manuscript is a solid, multi-author review appropriate for a topical collection. The skeptic’s concern about extrapolation is real but is already partially acknowledged in §2.1.3; requiring only a clearer statement of robustness limits is proportionate. No novelty or citation-pattern issues warrant rejection."},"author_rebuttal":null,"desk_editor":{"model":"grok-4.5","letter":"This is a review, not a discovery paper. What it does well is pull formation, thermal/non-thermal escape, magma-ocean and volcanic outgassing, climate feedbacks (carbonate-silicate, ice-albedo, runaway greenhouse), nitrogen/sulfur cycles, biosignatures, and photochemistry into one coherent narrative aimed at people who will interpret JWST/PLATO/HWO rocky-planet spectra. The solar-system framing (Venus/Mars/Earth/Titan) and the explicit secondary-vs-tertiary atmosphere sketch are clear, and the co-author list covers the needed subfields without obvious gaps in the cited literature.\n\nNothing here is new: no equation, simulation, or measurement is introduced. The strongest claim—that atmospheric composition can constrain interiors beyond mass/radius once the coupled processes are accounted for—is the standard framing of the field, restated carefully. The softest link is exactly the one the stress-test notes: energy-limited η, magma-ocean fO2 buffers, solubilities, and weathering rates are solar-system/lab extrapolations. The paper itself flags this in §2.1.3 and in the discussions of hybrid atmospheres and redox evolution, so the limitation is not hidden. It does not break the review; it just means the diagnostic power is aspirational for the super-Earth/M-dwarf targets that dominate near-term data.\n\nCitation pattern looks normal for a multi-author topical review; self-cites are supporting, not load-bearing. Math is limited to standard scaling relations (primordial mass fraction, energy-limited escape) that are correctly attributed. No circularity.\n\nWho it is for: graduate students and observers who need a single entry point before diving into specialized papers, and modelers who want the process map. I would bring it to reading group as background, cite it when I need a compact pointer to the multi-process picture, and send it to peer review without hesitation—it is the kind of synthesis a topical collection is supposed to deliver.","headline":"Solid multi-author review that organizes the atmosphere–interior coupling story for rocky exoplanets; useful synthesis, no new results, and the extrapolation caveat is already flagged by the authors.","tokens_in":56219,"tokens_out":507,"would_cite":true,"duration_ms":7831,"reading_group":"yes","serious_thinker":"yes","would_accept_peer_review":true},"rs_alignment":null,"lean_confirmation":null,"pith_extraction":{"msc":[],"pacs":[],"model":"grok-4.5","headline":"Rocky exoplanet atmospheres encode interior properties only after formation, escape, surface exchange, photochemistry and life are jointly accounted for.","keywords":["rocky exoplanets","exoplanet atmospheres","atmospheric evolution","magma ocean outgassing","atmospheric escape","carbonate-silicate cycle","biosignatures","photochemistry"],"falsifier":"A statistical sample of temperate rocky planets near the inner and outer edges of the habitable zone whose measured CO2 levels do not follow the high-CO2 outer-edge / low-CO2 inner-edge pattern predicted by an active carbonate-silicate cycle, or multi-planet systems straddling the radius gap whose mass-radius pairs systematically contradict atmospheric-escape models.","tokens_in":56354,"feed_emoji":"🪐","tokens_out":596,"duration_ms":6168,"temperature":0.7,"pith_summary":"This review argues that atmospheric composition is the best available window into the interiors of rocky exoplanets, going beyond mass and radius alone. The catch is that the atmosphere is never a static fingerprint: it is continuously reshaped by how the planet formed, how gases escape, how the surface and mantle exchange volatiles, how light drives chemistry, and whether life is present. The authors walk through primordial capture, impact and magma-ocean outgassing, volcanic degassing, thermal and non-thermal escape, climate feedbacks such as the carbonate-silicate cycle and runaway greenhouse, nitrogen and sulfur cycles, biosignatures, and photochemistry. The practical claim is that future spectra from space and ground facilities will be usable as interior probes only if these coupled processes are modelled together rather than treated in isolation.","feed_headline":"Rocky atmospheres encode interiors only after all processes","feed_subtitle":"Mass and radius are not enough; formation, escape, surface exchange and life reshape every spectrum","key_machinery":"Coupled atmosphere-interior evolution: the set of processes (primordial capture and secondary outgassing, thermal and non-thermal escape, volatile cycling including the carbonate-silicate cycle, photochemistry, and biological activity) that jointly determine atmospheric composition over time.","core_discovery":"The atmospheric composition of rocky exoplanets can constrain interior properties beyond mass and radius, but only when the complex, time-evolving interplay of formation, escape, long-term atmosphere-surface-interior exchange, photochemistry, and biology is understood and jointly modelled.","pith_inferences":[],"forward_implications":[],"fun_headline_variants":["Rocky atmospheres reveal interiors only with full process models","Interiors in rocky air only after formation escape and exchange","Mass radius fail: atmospheres need every coupled planetary process","Rocky atmospheres encode interiors when surface biology included","Atmospheres constrain rocky interiors via long-term process history"],"cache_read_input_tokens":49280,"weakest_assumption_plain":"The solar-system and laboratory rules for how gases dissolve, how redox state is set, and how atmospheres escape still work when applied to the much wider range of exoplanet masses, stars, and bulk compositions discussed in the review.","fun_headline_variants_meta":{"raw":{"variants":["Rocky atmospheres reveal interiors only with full process models","Interiors in rocky air only after formation escape and exchange","Mass radius fail: atmospheres need every coupled planetary process","Rocky atmospheres encode interiors when surface biology included","Atmospheres constrain rocky interiors via long-term process history"]},"model":"grok-4.5","effort":"low","cost_usd":0.003862,"raw_usage":{"total_tokens":1117,"prompt_tokens":662,"num_sources_used":0,"completion_tokens":77,"cost_in_usd_ticks":38620000,"prompt_tokens_details":{"text_tokens":662,"audio_tokens":0,"image_tokens":0,"cached_tokens":128},"completion_tokens_details":{"audio_tokens":0,"reasoning_tokens":378,"accepted_prediction_tokens":0,"rejected_prediction_tokens":0}},"tokens_in":662,"tokens_out":77,"duration_ms":5308,"temperature":1.0,"reasoning_tokens":378,"cache_read_input_tokens":128,"cache_creation_input_tokens":0},"cache_creation_input_tokens":0},"created_at":"2026-07-14T04:55:59.768407+00:00","model_set":{"reader":"grok-4.5"},"falsifier":"A statistical sample of temperate rocky planets near the inner and outer edges of the habitable zone whose measured CO2 levels do not follow the high-CO2 outer-edge / low-CO2 inner-edge pattern predicted by an active carbonate-silicate cycle, or multi-planet systems straddling the radius gap whose mass-radius pairs systematically contradict atmospheric-escape models.","supporting_citations":[],"review_version":1}