{"schema":"hottub-news/list/v1","item_schema":"hottub-news/item/v1","count":23,"sponsored":0,"items":[{"id":"n_ijyw25575pnyei25fl5a","seq":1792212,"kind":"research","title":"Diverse Histories and Common Origins of Nitrogen-enhanced JWST Galaxies","url":"https://arxiv.org/abs/2606.18334","summary":"arXiv:2606.18334v2 Announce Type: replace Abstract: Early JWST spectra revealed galaxies with a strong nitrogen excess challenging galactic chemical evolution models. Using public JWST surveys, we construct a sample of 76 N/O-enhanced galaxies (NOEGs) at 4 $<z<$ 8.5, the largest at high redshift to date. The NOEG fraction rises from $\\sim$3% to $\\sim$18% between $z\\sim$ 4 and 7 - well above the $\\sim$2% measured locally - potentially driven by burstier, cluster-dominated…","published":"2026-10-05T04:00:00Z","seen":"2026-10-05T08:12:21Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga"],"authors":["Vadim Rusakov, Christopher J. Conselice, Thomas Harvey, Jordan C. J. D'Silva…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_ijyw25575pnyei25fl5a","category":"science-technology","category_p":0.64,"sentiment":"neutral","tone":0.1,"political":0.02},{"id":"n_guacbikrsdkyn6m745zq","seq":1792209,"kind":"research","title":"JWST Nebular Spectroscopy of SN 2023qov: Circumstellar Dust Emission in a Normal Type Ia Supernova","url":"https://arxiv.org/abs/2604.09777","summary":"arXiv:2604.09777v2 Announce Type: replace Abstract: We present panchromatic observations of the Type Ia supernova (SN Ia) 2023qov, ranging from $\\sim$2 weeks before to $\\sim$1 year after maximum light. JWST near- and mid-infrared spectra at $+$276 and $+$363~days show $\\sim$400 K dust emission that cools by $\\sim$75 K between epochs, the first unambiguous spectroscopic detection of dust emission in a normal SN Ia. We find that the emission is well described by models of…","published":"2026-10-05T04:00:00Z","seen":"2026-10-05T08:12:21Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.he"],"authors":["Colin W. Macrie, Conor Larison, Huei Sears, Lindsey A. Kwok, Saurabh W. Jha, Mi…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"},{"id":"Q582000","name":"type Ia supernova","type":"event"}],"story":"st_guacbikrsdkyn6m745zq","category":"science-technology","category_p":0.43,"sentiment":"neutral","tone":0.01,"political":0.06},{"id":"n_hqmxz2gm7ydbzvzfm3mq","seq":1563415,"kind":"article","title":"Precise C-N-O Abundances of Individual Galaxies In The First Billion Years From Ultra-Deep, Rest-UV-to-Optical JWST Spectroscopy","url":"https://astrobiology.com/2026/10/03/precise-c-n-o-abundances-of-individual-galaxies-in-the-first-billion-years-from-ultra-deep-rest-uv-to-optical-jwst-spectroscopy","summary":"[astro-ph.GA] We present ultra-deep JWST/NIRSpec 𝑅 ∼ 1000 spectroscopy of nine star-forming galaxies at 𝑧 = 6.0 − 8.3 in the GOODSN field, drawn from the Origins of Metal Enrichment […] The post Precise C-N-O Abundances of Individual Galaxies In The First Billion Years From Ultra-Deep, Rest-UV-to-Optical JWST Spectroscopy appeared first on Astrobiology .","published":"2026-10-03T16:22:16Z","seen":"2026-10-03T16:56:22Z","lang":"en","source":{"id":"kite-astrobiology-com-3e43ba","name":"astrobiology.com","domain":"astrobiology.com"},"via":"kite-astrobiology-com-3e43ba","topics":["space","astrochemistry","astronomy & telescopes","biochemistry & organic chemistry","imaging & spectroscopy","interstellar","astro-ph.ga","astronomy"],"authors":["Keith Cowing"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_hqmxz2gm7ydbzvzfm3mq","category":"science-technology","category_p":0.75,"sentiment":"neutral","tone":0.13,"political":0.05},{"id":"n_xkvxyj2raqeiykaxokma","seq":1483082,"kind":"article","title":"Exoplaneten-Wetter: Wie das James-Webb-Weltraumteleskop fremde Atmosphären entschlüsselt","title_en":"Exoplanet Weather: How the James Webb Space Telescope Deciphers Alien Atmospheres","url":"https://t3n.de/news/exoplanet-wetter-james-webb-weltraumteleskop-wetter-1764475","summary":"Die Wissenschaft nähert sich immer mehr der interstellaren Wettervorhersage – dank des James-Webb-Weltraumteleskops. Vielfältige Wettersysteme können so wohl bald besser verstanden werden. weiterlesen auf t3n.de","published":"2026-10-03T04:35:00Z","seen":"2026-10-03T05:48:23Z","lang":"de","source":{"id":"kite-t3n-de-52535a","name":"t3n.de","domain":"t3n.de","outlet":{"wikidata":"Q2383460","name":"t3n","type":"magazine","designations":["popular science magazine"]}},"via":"kite-t3n-de-52535a","topics":["smart-home","james-webb","raumfahrt","studie"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"image":"https://cdn.t3n.de/news/wp-content/uploads/2023/05/shutterstock_2123958668.jpg?class=hero","story":"st_xkvxyj2raqeiykaxokma","category":"science-technology","category_p":0.84,"sentiment":"neutral","tone":-0.08,"political":0.02},{"id":"n_ayen2gobx4e5dil2tamq","seq":1410218,"kind":"article","title":"James-Webb-Teleskop liefert Beweise für massive planetare Kollisionen","title_en":"James Webb Telescope provides evidence for massive planetary collisions","url":"https://t3n.de/news/james-webb-teleskop-planetare-kollisionen-1766444","summary":"Wie formten sich Gesteinsplaneten wie unsere Erde und Himmelskörper wie der Mond? Neue Beobachtungsdaten aus dem tiefen Weltall liefern nun sehr konkrete Hinweise auf die physikalischen Abläufe in der Frühphase von jungen Sternensystemen. weiterlesen auf t3n.de","published":"2026-10-02T18:01:14Z","seen":"2026-10-02T18:33:05Z","lang":"de","source":{"id":"kite-t3n-de-52535a","name":"t3n.de","domain":"t3n.de","outlet":{"wikidata":"Q2383460","name":"t3n","type":"magazine","designations":["popular science magazine"]}},"via":"kite-t3n-de-52535a","topics":["smart-home","esa","gehalt","james-webb","mars","nasa","raumfahrt","studie"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"image":"https://cdn.t3n.de/news/wp-content/uploads/2026/10/weic2618a.jpg?class=hero","story":"st_ayen2gobx4e5dil2tamq","category":"science-technology","category_p":0.64,"sentiment":"positive","tone":-0.01,"political":0.06},{"id":"n_uqrh7vxynhkavuty2pwq","seq":1387947,"kind":"article","title":"JWST Studies Of Planet-shattering Collisions","url":"https://astrobiology.com/2026/10/02/jwst-studies-of-planet-shattering-collisions","summary":"[ESA]. In the early history of our Solar System, a Mars-sized object called Theia smashed into the infant Earth, vapourising massive amounts of rock and blasting it into space. Some […] The post JWST Studies Of Planet-shattering Collisions appeared first on Astrobiology .","published":"2026-10-02T16:21:29Z","seen":"2026-10-02T16:33:22Z","lang":"en","source":{"id":"kite-astrobiology-com-3e43ba","name":"astrobiology.com","domain":"astrobiology.com"},"via":"kite-astrobiology-com-3e43ba","topics":["space","astrogeology","gaia mission","impact events","moon","debris disk","extinction event","fomalhaut"],"authors":["Keith Cowing"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_uqrh7vxynhkavuty2pwq","category":"science-technology","category_p":0.66,"sentiment":"neutral","tone":-0.2,"political":0.02},{"id":"n_7wwagwvjmhtsap7gp72a","seq":1357881,"kind":"article","title":"Webb telescope spots signs of collisions like the one that made our moon","url":"https://mashable.com/science/james-webb-space-telescope-planet-forming-collisions","published":"2026-10-02T09:00:00Z","seen":"2026-10-02T13:52:51Z","lang":"en","source":{"id":"mashable.com","name":"mashable.com","domain":"mashable.com","outlet":{"wikidata":"Q619899","name":"Mashable","type":"website","designations":["news website"]}},"via":"gdelt-gkg-english","topics":["disaster","economy","environment","science"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_7wwagwvjmhtsap7gp72a","category":"science-technology","category_p":0.74,"sentiment":"neutral","tone":-0.45,"political":0.11},{"id":"n_s2x3qqybbshubxqbwrfq","seq":608211,"kind":"research","title":"JWST Observations of the Metal-poor T Dwarf WISEA J155349.96+693355.2: The First Brown Dwarf Associated with the Gaia-Enceladus Milky Way Substructure","url":"https://arxiv.org/abs/2609.29365","summary":"arXiv:2609.29365v2 Announce Type: replace Abstract: We present JWST NIRSpec and MIRI observations of the metal-poor T dwarf WISEA J155349.96+693355.2. The combined NIRSpec/prism plus MIRI/LRS spectrum (R ~ 100) provides 0.6-12 $\\mu$m spectroscopic coverage that reveals the presence of H$_2$O, CH$_4$, and NH$_3$ absorption features, enhanced collision-induced H$_2$ absorption, and weak or absent CO and CO$_2$ absorption, all indicators of a metal-poor low-temperature…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.sr","astro-ph.ep","astro-ph.ga"],"authors":["Aaron M. Meisner, Adam J. Burgasser, Chih-Chun Hsu, Sherelyn Alejandro Merchan…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"},{"id":"Q1752705","name":"Milky Way","type":"place"}],"story":"st_s2x3qqybbshubxqbwrfq","category":"science-technology","category_p":0.73,"sentiment":"neutral","tone":0.12,"political":0.03},{"id":"n_xycskwvwlgh7rwd5atsa","seq":608209,"kind":"research","title":"Metal-poor Brown Dwarf Kinematics from JWST NIRSpec Spectroscopy","url":"https://arxiv.org/abs/2609.28746","summary":"arXiv:2609.28746v2 Announce Type: replace Abstract: Galactic archaeology relies on stellar kinematics and chemical abundances to identify various stellar populations and associations. With JWST, Galactic archaeology of ancient metal-poor brown dwarfs is now possible through high-sensitivity, medium-resolution spectroscopy. We present the first metal-poor brown dwarf radial velocity (RV) survey using JWST/NIRSpec G395H spectra ($\\lambda/\\Delta\\lambda \\sim$ 3,000) for a sample…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.sr","astro-ph.ep","astro-ph.ga"],"authors":["Chih-Chun Hsu, Christopher A. Theissen, Adam J. Burgasser, Adam C. Schneider…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_xycskwvwlgh7rwd5atsa","category":"science-technology","category_p":0.43,"category2":"arts-culture-entertainment","sentiment":"neutral","tone":0.07,"political":0.02},{"id":"n_o2obbatxaqhm542ynnza","seq":608208,"kind":"research","title":"JWST evidence for a sharp \"Cosmic Daybreak\" at z = 15","url":"https://arxiv.org/abs/2609.28257","summary":"arXiv:2609.28257v2 Announce Type: replace Abstract: Luminous young galaxies have been uncovered with relative ease by JWST, extending to z=14.5, so it is puzzling that deeper spectroscopy of fainter candidates now finds only interlopers. This redshift `\\`impasse\" is underscored by the measured stellar ages of these high-z galaxies, which we show converge to zero by z=15, with a marked absence of earlier star-formation. Taken literally, such a late transition from the Dark…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.co","astro-ph.ga"],"authors":["Jiashuo Zhang, Tom Broadhurst, Tzihong Chiueh, Hsi-Yu Schive, Keiichi Umetsu…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_o2obbatxaqhm542ynnza","category":"science-technology","category_p":0.65,"sentiment":"neutral","tone":-0.02,"political":0.04},{"id":"n_oqubzyxzmvcw5ubxjhnq","seq":608129,"kind":"research","title":"JWST unveils a dust-obscured supernova associated with a gamma-ray burst","url":"https://arxiv.org/abs/2609.35697","summary":"arXiv:2609.35697v1 Announce Type: new Abstract: Recent observations have challenged the duration-based classification of gamma-ray bursts (GRBs), making the detection of an associated supernova (SN) or kilonova crucial for conclusively identifying their progenitors. We investigate the origin of GRB 240825A at $z=0.659$, whose prompt emission gave conflicting indications of a merger or collapsar origin and for which no SN was detected in deep ground-based observations. We…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.he"],"authors":["B. Schneider, A. J. Levan, N. Sarin, N. A. Rakotondrainibe, B. P. Gompertz, V.…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_oqubzyxzmvcw5ubxjhnq","category":"science-technology","category_p":0.38,"sentiment":"neutral","tone":-0.26,"political":0.04},{"id":"n_pks6m5jfg6gsjtatwc2q","seq":608126,"kind":"research","title":"JWST NIRSpec G395H Transmission Spectra of Two Similar Sub-Neptunes in the TOI-125 System","url":"https://arxiv.org/abs/2609.35607","summary":"arXiv:2609.35607v1 Announce Type: new Abstract: The James Webb Space Telescope (JWST) has enabled the first in-depth characterisations of sub-Neptune atmospheres, revealing a diversity of chemical compositions and cloud properties that challenge current models. Multi-planet systems provide an opportunity to compare planetary atmospheres while controlling for formation conditions within the same protoplanetary disk. We present JWST NIRSpec G395H 3-5 um observations of two…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ep"],"authors":["Yiwei Chai, N\\'estor Espinoza, Chloe Fisher, Erik Meier Valdes, Matthew Hooton…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_pks6m5jfg6gsjtatwc2q","category":"science-technology","category_p":0.75,"sentiment":"neutral","tone":-0.08,"political":0.07},{"id":"n_wpnegyboz6f2u5dvk2wq","seq":608121,"kind":"research","title":"Source--Line Associations in JWST/NIRSpec Dense-Shutter Spectroscopy","url":"https://arxiv.org/abs/2609.35423","summary":"arXiv:2609.35423v1 Announce Type: new Abstract: We demonstrate the feasibility of source--line association in JWST/NIRSpec dense-shutter spectroscopy, with $\\sim$2000 sources observed simultaneously per pointing regardless of spectral overlap. While JWST wide-field slitless spectroscopy (WFSS) can disentangle overlapping spectra using two grisms with perpendicular dispersion directions, NIRSpec can achieve this using gratings with different dispersions. Compared with WFSS…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.im","astro-ph.co","astro-ph.ga"],"authors":["Zihao Wu, Daniel J. Eisenstein, Francesco D'Eugenio, Erica Nelson, Benjamin D.…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_wpnegyboz6f2u5dvk2wq","category":"science-technology","category_p":0.62,"sentiment":"neutral","tone":0.06,"political":0.03},{"id":"n_o7bliou4jx4ecjgrnada","seq":608101,"kind":"research","title":"Exploring the observed properties of JWST Little Red Dots with cosmological simulations and dust radiative transfer","url":"https://arxiv.org/abs/2609.34903","summary":"arXiv:2609.34903v1 Announce Type: new Abstract: JWST has uncovered compact high-redshift (z>=4) sources, dubbed Little Red Dots (LRDs), characterised by a distinct V-shaped continuum. Their nature remains debated since broad-line AGN signatures coexist with non-AGN continua, marked by weak X-ray and mid-IR emission. We investigate which properties of LRDs naturally emerge within simulations of massive AGN host galaxies and which require additional physics. We post-process…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga"],"authors":["Saksham Chandna, Fabio Di Mascia, Simona Gallerani, Stefano Carniani, Pierluigi…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"other"}],"story":"st_o7bliou4jx4ecjgrnada","category":"science-technology","category_p":0.75,"sentiment":"neutral","tone":0.08,"political":0.07},{"id":"n_x2gjactnk6cvaphbvvsq","seq":608092,"kind":"research","title":"Hybrid worlds are the commonest outcome among the M-dwarf sub-Neptunes characterised with JWST","url":"https://arxiv.org/abs/2609.34635","summary":"arXiv:2609.34635v1 Announce Type: new Abstract: The sub-Neptunes orbiting M dwarfs are usually assigned to one of two classes: rocky cores beneath primordial hydrogen, or volatile-rich bodies formed beyond the water-ice line. Bulk density cannot distinguish them, the two being degenerate in mass and radius once envelope evolution is modelled self-consistently (Rogers et al. 2023); the atmospheric mean molecular weight {\\mu} is the route past it. We compile the eight M-dwarf…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ep"],"authors":["Juan F. Pag\\'es Navarrete"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"other"}],"story":"st_x2gjactnk6cvaphbvvsq","category":"science-technology","category_p":0.61,"sentiment":"neutral","tone":-0.02,"political":0.02},{"id":"n_mx7a5c5zoku76unpkdsq","seq":608073,"kind":"research","title":"A JWST Study of Stardust. II. Polycyclic Aromatic Hydrocarbons in Comet 81P/Wild 2 and Implications for Primitive Solar System Carbon","url":"https://arxiv.org/abs/2609.34116","summary":"arXiv:2609.34116v1 Announce Type: new Abstract: We report observations of comet 81P/Wild 2, target of the Stardust sample return mission, on UT 2023 March 20 and 24 at a heliocentric distance ($r_H$) of 1.85 au using the NIRSpec and MIRI integral field unit spectrographs on board the James Webb Space Telescope (JWST). This study is the first compositional comparison between JWST remote-sensing spectroscopy of a solar system object against terrestrial analysis of its returned…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ep"],"authors":["Nathan X. Roth, Stefanie N. Milam, Diane H. Wooden, Els Peeters, Charles E.…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_mx7a5c5zoku76unpkdsq","category":"science-technology","category_p":0.62,"sentiment":"neutral","tone":0.12,"political":0.02},{"id":"n_nv23pbwr3xetl7iu4o3q","seq":608018,"kind":"research","title":"JWST Reveals the Kuiper Belt-like Compositions of the Uranian Rings and Small Moons","url":"https://arxiv.org/abs/2609.31923","summary":"arXiv:2609.31923v1 Announce Type: new Abstract: We present the JWST NIRSpec 1--5 micron spectra of the Uranian rings and four ringmoons: Puck, Perdita, Portia, and Juliet. We find that the compositions of the rings and moons strongly resemble water-type Kuiper belt objects, showing deep 3.0 micron O--H and water ice features as well as the CO$_2$ band at 4.27 micron. The volatiles show a radial trend of decreasing volatile abundance at closer radial distance to the planet…","published":"2026-09-29T04:00:00Z","seen":"2026-09-29T07:46:41Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ep"],"authors":["Matthew Belyakov, M. Ryleigh Davis, Zachariah Milby, Ian Wong, Michael E. Brown"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_nv23pbwr3xetl7iu4o3q","category":"science-technology","category_p":0.6,"sentiment":"neutral","tone":0.11,"political":0.13},{"id":"n_g45po3gb65mbry7gjmzq","seq":470256,"kind":"research","title":"Piercing Through the Haze: Characterizing Titan-Like Terrestrial Exoplanets with JWST","url":"https://doi.org/10.3847/1538-3881/ae7712","summary":"L. C. Mayorga et al 2026 AJ 172 87 Analysis of Cassini spectra of Titan suggests that JWST is unlikely to identify atmospheric components aside from methane on a Titan-like exoplanet; optical and near-ultraviolet observations will be key. The post Piercing Through the Haze: Characterizing Titan-Like Terrestrial Exoplanets with JWST appeared first on AAS Nova .","published":"2026-09-28T16:00:32Z","seen":"2026-09-28T16:17:40Z","lang":"en","source":{"id":"aas-nova","name":"AAS Nova (American Astronomical Society research highlights)","domain":"aasnova.org"},"via":"aas-nova","topics":["space","journals digest"],"authors":["Kerry Hensley"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_g45po3gb65mbry7gjmzq","category":"science-technology","category_p":0.89,"sentiment":"neutral","tone":0.01,"political":0.04},{"id":"n_rv423swphv7uulznpcea","seq":389932,"kind":"article","title":"James Webb Telescope Reveals Vast Stellar Nursery With Record-Breaking Brown Dwarfs","url":"https://hardwoodparoxysm.com/james-webb-telescope-reveals-vast-stellar-nursery-with-record-breaking-brown-dwarfs","published":"2026-09-28T07:37:00Z","seen":"2026-09-28T09:42:09Z","lang":"en","source":{"id":"hardwoodparoxysm.com","name":"hardwoodparoxysm.com","domain":"hardwoodparoxysm.com"},"via":"gdelt-gkg-english","topics":["economy","science"],"authors":["Ambrose Sherman"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_rv423swphv7uulznpcea","category":"environment","category_p":0.32,"category2":"science-technology","sentiment":"positive","tone":0.5,"political":0.01},{"id":"n_qnbellmjopatwqtw2v3q","seq":369666,"kind":"research","title":"H2 emission in the Orion Bar, NGC7023 and the Horsehead Nebula observed with the James Webb Space Telescope","url":"https://arxiv.org/abs/2609.31287","summary":"arXiv:2609.31287v1 Announce Type: new Abstract: Molecular hydrogen (H2), the most abundant molecule in the interstellar medium, is a handy tool to study Photodissociation Regions. The JWST, with its high spatial resolution, sensitivity, and wavelength coverage, provides unique access to the detection and spatial morphology of the H2 rotational and rovibrational lines. Our goal is to analyze H2 line emission detected with JWST in several PDRs (the Orion Bar, NGC7023, and the…","published":"2026-09-28T04:00:00Z","seen":"2026-09-28T07:43:12Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga"],"authors":["M. Zannese, A. Sidhu, A. Guerras, M. Pound, M. Wolfire, A. G. G. M. Tielens, E.…"],"entities":[{"id":"Q130540616","name":"Orion Bar","type":"place"},{"id":"Q14271","name":"Horsehead Nebula","type":"place"},{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_qnbellmjopatwqtw2v3q","category":"environment","category_p":0.44,"category2":"science-technology","sentiment":"neutral","tone":-0.18,"political":0.14},{"id":"n_cr2crxrkgslpebwokhnq","seq":369640,"kind":"research","title":"The JWST Proto-PAH project: Aromatic backbones with extensive aliphatic substitution account for both the aromatic and aliphatic emission","url":"https://arxiv.org/abs/2609.30598","summary":"arXiv:2609.30598v1 Announce Type: new Abstract: We find that the aromatic and aliphatic emission bands in four carbon-rich post-asymptotic giant branch stars with class D emission arise from a single carrier population: extensive aliphatic decoration of an aromatic skeleton, i.e. molecules with a coherent aromatic backbone and an unusually high aliphatic content. This conclusion is based on JWST NIRSpec and MIRI/MRS spectroscopy, covering 2.88-28.7um. The aliphatic 3.4um…","published":"2026-09-28T04:00:00Z","seen":"2026-09-28T07:43:12Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga","astro-ph.sr"],"authors":["N. Clark, E. Peeters, J. Cami, G. C. Sloan, K. Volk, K. E. Kraemer, H. L.…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_cr2crxrkgslpebwokhnq","category":"science-technology","category_p":0.31,"category2":"health","sentiment":"neutral","tone":0.16,"political":0.03},{"id":"n_quxivp7pyioz4noebfsa","seq":369639,"kind":"research","title":"The JWST Proto-PAH project. Computational modeling of the emission carriers","url":"https://arxiv.org/abs/2609.30574","summary":"arXiv:2609.30574v1 Announce Type: new Abstract: The infrared spectra of many carbon-rich post-asymptotic giant branch stars are dominated by emission features from aromatic and aliphatic hydrocarbons, but the chemical structure of the carriers remains unidentified. Class D sources show unusual emission profiles with strong aliphatic emission, providing a stringent test of carrier candidates. Here we investigate whether hydrogenated carbonaceous molecular particles can be the…","published":"2026-09-28T04:00:00Z","seen":"2026-09-28T07:43:12Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga"],"authors":["A. Ricca, G. C. Sloan, E. Peeters, J. Cami, N. Clark, M. Matsuura, R. Sahai, J.…"],"entities":[{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_quxivp7pyioz4noebfsa","category":"science-technology","category_p":0.85,"sentiment":"neutral","tone":0.04,"political":0.06},{"id":"n_gvgrwgwq3cxwgeojqfua","seq":369621,"kind":"research","title":"Hidden in the Halo: New Diffuse Star Clusters in the M82 Starburst with JWST","url":"https://arxiv.org/abs/2609.30373","summary":"arXiv:2609.30373v1 Announce Type: new Abstract: Diffuse star clusters (DSCs) occupy a poorly explored region of the size-luminosity plane between classical globular clusters (GCs) and dwarf galaxies. Here we report the discovery of four faint DSCs in the halo of the nearby starburst galaxy M82 using archival JWST/NIRCam imaging. We resolve individual stars in all four systems, whose color-magnitude diagrams are consistent with predominantly old ($\\sim10$ Gyr) stellar…","published":"2026-09-28T04:00:00Z","seen":"2026-09-28T07:43:12Z","lang":"en","source":{"id":"arxiv-astro-ph","name":"arXiv astro-ph (astrophysics)","domain":"arxiv.org","outlet":{"wikidata":"Q118398","name":"arXiv","type":"website","country":"US","designations":["bibliographic database","disciplinary repository","online database","open science tool","preprint server","website"]}},"via":"arxiv-astro-ph","topics":["space","astrophysics","astro-ph.ga"],"authors":["Deepthi S. Prabhu, David J. Sand, Burcin Mutlu-Pakdil, Adam Smercina, Denija…"],"entities":[{"id":"Q14026","name":"Messier 82","type":"place"},{"id":"Q186447","name":"James Webb Space Telescope","type":"org"}],"story":"st_gvgrwgwq3cxwgeojqfua","category":"science-technology","category_p":0.72,"sentiment":"neutral","tone":0.08,"political":0.02}]}