{"$schema": "https://iptc.org/std/ninjs/ninjs-schema_3.2.json", "uri": "urn:newsml:wireva.mib.news:item:c228ec57-aa5b-48e9-86e1-589019502d61", "type": "text", "profile": "standard", "version": "1", "versioncreated": "2026-08-26T16:08:34.157764Z", "firstcreated": "2026-08-26T16:07:01.310953Z", "pubstatus": "usable", "urgency": 5, "language": "en", "headline": "Stellar stream spotted in distant galaxy offers new way to measure dark matter", "byline": "Logan Weston", "located": "United States", "copyrightholder": "Haydamax OÜ", "copyrightnotice": "Wireva / Science Official", "usageterms": "Subscribers may republish this item in full, including translation and trimming, with the credit “Wireva / Science Official”. Set rel=canonical to https://scienceofficial.org/space/stellar-stream-spotted-in-distant-galaxy-offers-new-way-to-measure-dark-matter/ when publishing on the web.", "description_text": "Astronomers have detected a faint stream of stars torn from a globular cluster in the ultra-diffuse galaxy UGC 9050-Dw1, 115 million light-years away. It is the first such stream found outside the Milky Way, and modeling its stars' orbits allowed the team to estimate the galaxy's dark matter content using a method never before applied beyond our own galaxy.", "altids": {"mosaic": "c228ec57-aa5b-48e9-86e1-589019502d61", "story": "69cafd8f-1c53-4018-97f4-6ded60b8b284", "slug": "stellar-stream-spotted-in-distant-galaxy-offers-new-way-to-measure-dark-matter"}, "subject": [{"name": "Science", "rel": "direct", "literal": "science", "code": "medtop:13000000", "scheme": "http://cv.iptc.org/newscodes/mediatopic/", "uri": "http://cv.iptc.org/newscodes/mediatopic/13000000"}], "place": [{"name": "United States", "literal": "us", "code": "US", "scheme": "http://cv.iptc.org/newscodes/countrycodes/"}], "person": [], "organisation": [], "genre": [{"name": "Standard story", "literal": "standard"}], "service": [{"name": "Wireva", "literal": "wireva"}], "associations": {"featuremedia": {"uri": "urn:newsml:wireva.mib.news:media:5230acf8-68fe-45e6-866a-3e2e9f3b3b58", "type": "picture", "version": "1", "pubstatus": "usable", "headline": "Chance gaze at old Hubble Telescope image leads to discovery that could reveal dark matter's secrets", "description_text": "Stellar stream spotted in distant galaxy offers new way to measure dark matter", "copyrightholder": "cdn.mos.cms.futurecdn.net", "copyrightnotice": "Chance gaze at old Hubble Telescope image leads to discovery that could reveal dark matter's secrets", "usageterms": "Picture belongs to the source publication: address and terms are delivered, the file is not.", "altids": {"wireva": "5230acf8-68fe-45e6-866a-3e2e9f3b3b58"}, "extra": {"wireva:delivery_mode": "link_only", "wireva:rights": {"licence": "", "licence_url": "", "licence_raw": "RSS source", "licence_verified_at": "2026-08-26T16:08:34.168705Z", "attribution_required": true, "attribution_text": "Chance gaze at old Hubble Telescope image leads to discovery that could reveal dark matter's secrets", "redistribution_allowed": false, "commercial_use_allowed": false, "modifications_allowed": false, "share_alike_required": false}, "wireva:provenance": {"creator": "", "source_name": "cdn.mos.cms.futurecdn.net", "source_url": "https://cdn.mos.cms.futurecdn.net/7SgbBYfKYmqS62M4qymMqN-1280-80.jpg", "source_page_url": "https://cdn.mos.cms.futurecdn.net/7SgbBYfKYmqS62M4qymMqN-1280-80.jpg", "our_page_url": "https://scienceofficial.org/space/stellar-stream-spotted-in-distant-galaxy-offers-new-way-to-measure-dark-matter/"}, "wireva:role": "lead"}, "renditions": {"source": {"href": "https://cdn.mos.cms.futurecdn.net/7SgbBYfKYmqS62M4qymMqN-1280-80.jpg", "mimetype": "image/jpeg"}}}}, "extra": {"wireva:story": {"uri": "urn:newsml:wireva.mib.news:story:69cafd8f-1c53-4018-97f4-6ded60b8b284", "slug": "iran-il-viceministro-gharibabadi-lo-stretto-di-hormuz-resta-chiuso-e-sotto-il-nostro-controllo-20260826", "status": "updated", "languages": ["en", "it"], "item_count": 2, "is_breaking": false}, "wireva:rights": {"class": "agency_original", "redistribution_allowed": true, "commercial_use_allowed": true, "modifications_allowed": true, "share_alike_required": false, "attribution_required": true, "attribution_text": "Wireva / Science Official", "canonical_required": true, "canonical_url": "https://scienceofficial.org/space/stellar-stream-spotted-in-distant-galaxy-offers-new-way-to-measure-dark-matter/", "linkback_required": true, "licence": "Wireva subscriber licence", "licence_url": "", "licensor": "Haydamax OÜ", "valid_until": null, "excerpt_max_chars": 0, "decided_by_rule": "agency_original_verified", "needs_review": false}, "wireva:provenance": {"production_method": "automated", "ai_stages": {"editing": true, "drafting": true, "headline": true, "discovery": true, "classification": true, "image_selection": true, "source_collection": true, "cross_source_comparison": true}, "model": "", "human_reviewed": false, "reviewed_by": "", "reviewed_at": null, "editorial_control": true, "editorial_responsibility": "Haydamax OÜ (Wireva)", "factchecked": false, "verification_status": "multi_source", "independent_confirmations": 2, "official_source_used": false, "used_press_release": false, "public_interest": false, "ai_disclosure_required": false, "ai_disclosure_text": "", "independence_check": {"status": "passed", "score": 0.122, "checked_at": "2026-08-26T16:08:34.166513Z"}}, "wireva:publication": {"name": "Science Official", "domain": "scienceofficial.org", "country": "US", "url": "https://scienceofficial.org/space/stellar-stream-spotted-in-distant-galaxy-offers-new-way-to-measure-dark-matter/"}, "wireva:links": {"self": "https://wireva.mib.news/api/v1/items/c228ec57-aa5b-48e9-86e1-589019502d61", "html": "https://wireva.mib.news/item/c228ec57-aa5b-48e9-86e1-589019502d61/stellar-stream-spotted-in-distant-galaxy-offers-new-way-to-measure-dark-matter/", "story": "https://wireva.mib.news/story/iran-il-viceministro-gharibabadi-lo-stretto-di-hormuz-resta-chiuso-e-sotto-il-nostro-controllo-20260826/"}, "wireva:metrics": {"word_count": 502, "char_count": 3108, "reading_time_seconds": 222}}}