{"id":"hui2026nucleus","DOI":"10.3847/2041-8213/ae471c","URL":"https://arxiv.org/abs/2601.21569","type":"article","title":"Nucleus and Postperihelion Activity of Interstellar Object 3I/ATLAS Observed by Hubble Space Telescope","author":[{"given":"Man-To","family":"Hui"},{"given":"David","family":"Jewitt"},{"given":"Max J.","family":"Mutchler"},{"given":"Jessica","family":"Agarwal"},{"given":"Yoonyoung","family":"Kim"}],"issued":{"date-parts":[[2026]]},"year-text":"2026","container-title":"arXiv","catalog-key":"SRC0CSKBDTT2X79"}