{"id":"opitom2026high","DOI":"10.1038/s41550-026-02921-7","URL":"https://arxiv.org/abs/2603.07187","type":"article-journal","title":"High nitrogen and carbon isotopic ratios in the interstellar comet 3I/ATLAS","author":[{"given":"C.","family":"Opitom"},{"given":"J.","family":"Manfroid"},{"given":"D.","family":"Hutsemékers"}],"issued":{"date-parts":[[2026]]},"container-title":"Nature Astronomy 10, 1509-1518","catalog-key":"SRC0DFPWGSFTSQF"}