Pub Date : 2026-02-23DOI: 10.1038/s41550-026-02789-7
Gonzalo Muñoz-Sanchez, Maria Kalitsounaki, Stephan de Wit, Konstantinos Antoniadis, Alceste Zoe Bonanos, Emmanouil Zapartas, Konstantina Boutsia, Evangelia Christodoulou, Grigoris Maravelias, Igor Soszyński, Andrzej Udalski
{"title":"The dramatic transition of the extreme red supergiant WOH G64 to a yellow hypergiant","authors":"Gonzalo Muñoz-Sanchez, Maria Kalitsounaki, Stephan de Wit, Konstantinos Antoniadis, Alceste Zoe Bonanos, Emmanouil Zapartas, Konstantina Boutsia, Evangelia Christodoulou, Grigoris Maravelias, Igor Soszyński, Andrzej Udalski","doi":"10.1038/s41550-026-02789-7","DOIUrl":"https://doi.org/10.1038/s41550-026-02789-7","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"16 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-02-23","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"147279120","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-20DOI: 10.1038/s41550-026-02788-8
Robert Lillis, Shannon Curry, Shaosui Xu, Takuya Hara
NASA’s Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) mission will provide a revolutionary view of Martian space weather, and a new paradigm for low-cost deep space missions.
{"title":"Twin spacecraft open a new paradigm for Mars","authors":"Robert Lillis, Shannon Curry, Shaosui Xu, Takuya Hara","doi":"10.1038/s41550-026-02788-8","DOIUrl":"10.1038/s41550-026-02788-8","url":null,"abstract":"NASA’s Escape and Plasma Acceleration and Dynamics Explorers (ESCAPADE) mission will provide a revolutionary view of Martian space weather, and a new paradigm for low-cost deep space missions.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 2","pages":"325-325"},"PeriodicalIF":14.3,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224539","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-20DOI: 10.1038/s41550-026-02804-x
Paul Dirac might have said, “it is more important to have beauty in one’s [cosmological models] than to have them fit [observations]”, but the Universe is turning out to be more complex than even he might have thought. While cosmological tensions may be ironed out with the help of more observational data, perhaps we will have to come to terms with leaving a wrinkle or two?
{"title":"A cosmic web of cosmologies","authors":"","doi":"10.1038/s41550-026-02804-x","DOIUrl":"10.1038/s41550-026-02804-x","url":null,"abstract":"Paul Dirac might have said, “it is more important to have beauty in one’s [cosmological models] than to have them fit [observations]”, but the Universe is turning out to be more complex than even he might have thought. While cosmological tensions may be ironed out with the help of more observational data, perhaps we will have to come to terms with leaving a wrinkle or two?","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 2","pages":"173-173"},"PeriodicalIF":14.3,"publicationDate":"2026-02-20","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.nature.comhttps://www.nature.com/articles/s41550-026-02804-x.pdf","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146224537","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-18DOI: 10.1038/s41550-026-02811-y
Ann N. Nguyen, Laura B. Seifert, Kei Shimizu, Kathie Thomas-Keprta, Loan Le, Lindsay P. Keller, Simon J. Clemett, Zia Rahman, Jessica J. Barnes, Harold C. Connolly, Dante S. Lauretta
{"title":"Author Correction: Abundant supernova dust and heterogeneous aqueous alteration revealed by stardust in two lithologies of asteroid Bennu","authors":"Ann N. Nguyen, Laura B. Seifert, Kei Shimizu, Kathie Thomas-Keprta, Loan Le, Lindsay P. Keller, Simon J. Clemett, Zia Rahman, Jessica J. Barnes, Harold C. Connolly, Dante S. Lauretta","doi":"10.1038/s41550-026-02811-y","DOIUrl":"https://doi.org/10.1038/s41550-026-02811-y","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"59 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-02-18","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146210091","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-16DOI: 10.1038/s41550-026-02776-y
{"title":"Link between long-period transients and white dwarf pulsars","authors":"","doi":"10.1038/s41550-026-02776-y","DOIUrl":"https://doi.org/10.1038/s41550-026-02776-y","url":null,"abstract":"","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"7 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146204949","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Pub Date : 2026-02-16DOI: 10.1038/s41550-026-02786-w
Aishwarya Linesh Thakur, Luigi Piro, Alfredo Luminari, Fabrizio Nicastro, Sandra Savaglio, Yair Krongold, Bruce Gendre
The 1–100-pc region embedding long-duration gamma-ray bursts (GRBs) has been hitherto unexplored, as extremely high ionization by the GRB prevents the application of optical absorption spectroscopy at such distances. Here we show that the ionizing flux of the GRB imprints a unique time- and spatially dependent ionization structure on the gas, which can be probed by X-ray absorption. Application of this model to a selected sample of seven bright GRB X-ray afterglow spectra observed by XMM-Newton EPIC-pn enables an independent, quantitative estimation of the density (log( n ) ≈ 2–4) and distances (5–100 pc) of the ionized absorber directly from the GRB X-ray spectrum, thereby allowing us to locate the absorbing medium of this representative sample of long-duration GRBs in the region of the density–size diagram populated by star-forming regions versus other gravitationally bound objects in the Universe. Our results provide one of the most direct links between long-duration GRBs and star formation and show the potential of high-resolution X-ray spectroscopy as a powerful probe of star-forming regions that embed GRBs up to the highest redshifts.
{"title":"Dense gas linked to star-forming regions photoionized by embedded gamma-ray bursts","authors":"Aishwarya Linesh Thakur, Luigi Piro, Alfredo Luminari, Fabrizio Nicastro, Sandra Savaglio, Yair Krongold, Bruce Gendre","doi":"10.1038/s41550-026-02786-w","DOIUrl":"https://doi.org/10.1038/s41550-026-02786-w","url":null,"abstract":"The 1–100-pc region embedding long-duration gamma-ray bursts (GRBs) has been hitherto unexplored, as extremely high ionization by the GRB prevents the application of optical absorption spectroscopy at such distances. Here we show that the ionizing flux of the GRB imprints a unique time- and spatially dependent ionization structure on the gas, which can be probed by X-ray absorption. Application of this model to a selected sample of seven bright GRB X-ray afterglow spectra observed by XMM-Newton EPIC-pn enables an independent, quantitative estimation of the density (log( <jats:italic>n</jats:italic> ) ≈ 2–4) and distances (5–100 pc) of the ionized absorber directly from the GRB X-ray spectrum, thereby allowing us to locate the absorbing medium of this representative sample of long-duration GRBs in the region of the density–size diagram populated by star-forming regions versus other gravitationally bound objects in the Universe. Our results provide one of the most direct links between long-duration GRBs and star formation and show the potential of high-resolution X-ray spectroscopy as a powerful probe of star-forming regions that embed GRBs up to the highest redshifts.","PeriodicalId":18778,"journal":{"name":"Nature Astronomy","volume":"10 1","pages":""},"PeriodicalIF":14.1,"publicationDate":"2026-02-16","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"146204956","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":1,"RegionCategory":"物理与天体物理","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
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