{"ok":true,"trend":{"id":4320,"platform":"hn","region":"global","key":"nasa’s mars sample return mission is dead","title":"NASA’s Mars Sample Return mission is dead","url":"https://www.science.org/content/article/nasa-s-mars-sample-return-mission-dead","first_seen":"2026-09-26T17:31:54.363667Z","last_seen":"2026-09-26T21:49:34.774614Z","last_rank":1,"peak_rank":1,"last_volume":454,"peak_volume":454,"seen_count":8,"score":112.0,"category_hint":"basketball","section":"science","category":"science","summary":"NASA's Mars Sample Return mission, long planned to bring rocks collected by the Perseverance rover back to Earth, is reportedly dead. The mission had faced years of cost overruns and schedule delays, with estimates ballooning well beyond initial budgets. The cancellation is a major blow to planetary science, as researchers had counted on the samples to answer key questions about Mars' history and potential past life.","why":"The reported cancellation of a flagship, long-delayed and over-budget NASA science mission is major news for the space community.","tone":"negative","entities":["NASA","Mars Sample Return","Perseverance rover","Mars"],"summarized_at":"2026-09-26T19:33:27.307833Z","meta":{"via":"scan","lang":"en","link":"https://www.science.org/content/article/nasa-s-mars-sample-return-mission-dead","term":"nba","comments":390},"nw":0.62,"promo":0.02,"kind":"news_event","importance":2.06,"hidden":false,"hide_reason":null,"judged_at":"2026-09-26T17:51:17.043359Z","title_en":"NASA cancels its Mars Sample Return mission","section_name":"Science","category_name":"Science","timeline":[{"captured_at":"2026-09-26T17:31:54.363667Z","rank":1,"volume":454},{"captured_at":"2026-09-26T17:32:54.645202Z","rank":1,"volume":454},{"captured_at":"2026-09-26T17:50:39.999297Z","rank":1,"volume":454},{"captured_at":"2026-09-26T18:49:22.684903Z","rank":1,"volume":454},{"captured_at":"2026-09-26T18:50:22.992602Z","rank":1,"volume":454},{"captured_at":"2026-09-26T19:08:36.992465Z","rank":1,"volume":454},{"captured_at":"2026-09-26T20:07:48.328982Z","rank":1,"volume":454},{"captured_at":"2026-09-26T20:08:48.658538Z","rank":1,"volume":454},{"captured_at":"2026-09-26T20:27:48.881188Z","rank":1,"volume":454},{"captured_at":"2026-09-26T21:29:34.828307Z","rank":1,"volume":454},{"captured_at":"2026-09-26T21:30:35.283458Z","rank":1,"volume":454},{"captured_at":"2026-09-26T21:49:34.774614Z","rank":1,"volume":454}],"posts":[{"platform":"hn","url":"https://news.ycombinator.com/item?id=49791939","author":"Muhammad523","title":"NASA’s Mars Sample Return mission is dead","snippet":null,"posted_at":"2026-09-21T19:14:12Z","likes":454}],"elsewhere":[],"window":"7d"}}