{"canonical":"https://abierto.us/opportunities/darpasn2621","key":"DARPASN2621","url":"https://abierto.us/opportunities/darpasn2621","title":"On-orbit Nuclear Power Concepts Workshop","solicitation_number":"DARPA-SN-26-21","notice_type":"s","open":false,"response_deadline":"2026-02-20","first_posted":"2025-12-18","last_posted":"2026-01-12","department":"DEPT OF DEFENSE","subagency":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)","office":"DEF ADVANCED RESEARCH PROJECTS AGCY","naics":"541715","psc":"AC12","set_aside":null,"place_state":null,"place_county":null,"place_county_name":null,"place_city":null,"place_city_name":null,"winner":null,"award_amount":null,"publications":[{"notice_id":"3174ed2272e04af08aa369daea9b2342","title":"On-orbit Nuclear Power Concepts Workshop","solicitation_number":"DARPA-SN-26-21","notice_type":"s","base_type":"s","posted":"2025-12-18","posted_at":null,"due_at":null,"due_date":"2026-02-06","cancelled":null,"archived":null,"archive_date":"2026-09-01","award_number":null,"awardee_name":null,"amount":null,"link_sam":"https://sam.gov/workspace/contract/opp/3174ed2272e04af08aa369daea9b2342/view","enriched":false,"history":[]},{"notice_id":"4bc82ea5fe8941dba8f74364147d5631","title":"On-orbit Nuclear Power Concepts Workshop","solicitation_number":"DARPA-SN-26-21","notice_type":"s","base_type":"s","posted":"2026-01-12","posted_at":null,"due_at":null,"due_date":"2026-02-20","cancelled":null,"archived":null,"archive_date":"2026-09-01","award_number":null,"awardee_name":null,"amount":null,"link_sam":"https://sam.gov/workspace/contract/opp/4bc82ea5fe8941dba8f74364147d5631/view","enriched":false,"history":[]}],"latest_notice_id":"4bc82ea5fe8941dba8f74364147d5631","first_type":"s","notices":[{"dates":{"posted":"2025-12-18","response_deadline":{"raw":"2026-02-06T16:00:00","date":"2026-02-06","time":"16:00:00"}},"links":{"sam":"https://sam.gov/workspace/contract/opp/3174ed2272e04af08aa369daea9b2342/view"},"naics":{"codes":["541715"],"primary":"541715"},"title":"On-orbit Nuclear Power Concepts Workshop","agency":{"office":{"code":"HR0011","name":"DEF ADVANCED RESEARCH PROJECTS AGCY"},"subtier":{"code":"97AE","name":"DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)"},"department":{"code":"097","name":"DEPT OF DEFENSE"},"office_address":{"zip":"222032114","city":"ARLINGTON","state":"VA","country":"USA"},"organization_type":"OFFICE"},"status":{"active":false,"archive_date":"2026-09-01","archive_type":"auto_custom"},"contacts":[{"name":"TTO BAA Coordinator","role":"primary","email":"DARPA-SN-26-21@darpa.mil"}],"base_type":{"code":"s","label":"Special Notice"},"notice_id":"3174ed2272e04af08aa369daea9b2342","provenance":{"extract":{"url":"https://s3.amazonaws.com/falextracts/Contract%20Opportunities/Archived%20Data/FY2026_archived_opportunities.csv","etag":"\"d9374b90a938e9923d910594731b7b57-106\"","fetched_at":"2026-09-16T17:48:36.003679Z","row_sha256":"d4d6f2fbcdc62d712be461231394d1c305dc9a193b57b1d3adbc797c980f068a","last_modified":"2026-09-13T14:50:39Z"},"updated_at":"2026-09-16T17:48:36.003679Z","first_seen_at":"2026-09-16T17:48:36.003679Z"},"description":{"text":"The Defense Advanced Research Projects Agency (DARPA) Tactical Technology Office (TTO) is requesting information regarding technologies, spaceflight qualification testing, safe handling, and applications for on-orbit satellite nuclear power systems. 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