Nuclear Thermal Rocket Propulsion RFI
ID: DARPA-SN-25-21Type: Special Notice
Overview

Buyer

DEPT OF DEFENSEDEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)DEF ADVANCED RESEARCH PROJECTS AGCYARLINGTON, VA, 222032114, USA

NAICS

Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology) (541715)

PSC

NATIONAL DEFENSE R&D SERVICES; DEPARTMENT OF DEFENSE - MILITARY; EXPERIMENTAL DEVELOPMENT (AC13)
Timeline
    Description

    The Defense Advanced Research Projects Agency (DARPA) is seeking innovative solutions for the design and development of space-qualified nuclear thermal rocket propulsion systems through a Request for Information (RFI). This initiative aims to identify sources capable of providing advanced propulsion technologies that enhance efficiency for both defense and space exploration missions, particularly in support of NASA's Demonstration Rocket for Agile Cislunar Operations (DRACO) program. The RFI emphasizes the importance of autonomous engine control, safety analysis for nuclear launch authorization, and system integration with existing spacecraft to maintain U.S. superiority in space capabilities. Interested parties, including universities, research institutions, and private companies, are invited to submit white papers by January 21, 2025, detailing their expertise and capabilities, with the understanding that this RFI is for information purposes only and does not constitute a formal solicitation for proposals. For further inquiries, contact the TTO BAA Coordinator at DARPA-SN-25-21@darpa.mil.

    Point(s) of Contact
    TTO BAA Coordinator
    DARPA-SN-25-21@darpa.mil
    Files
    Title
    Posted
    The Defense Advanced Research Projects Agency (DARPA) has issued an amended Request for Information (RFI) regarding the development of space-qualified nuclear thermal rocket propulsion systems, now due by January 21, 2025. This initiative seeks innovative solutions for engine design, development, and integration, particularly in conjunction with NASA's Demonstration Rocket for Agile Cislunar Operations (DRACO) program. The RFI outlines the necessity for advanced propulsion systems that can significantly enhance efficiency for both defense and space exploration missions, enabling dynamic space operations to maintain a competitive edge. Key challenges include autonomous control, safety analysis for nuclear launch authorization, and system integration with various spacecraft. Eligible participants, including universities, research centers, and private companies, are invited to submit concise white papers detailing their experiences and capabilities. The information collected may inform future programs aimed at developing versatile nuclear thermal propulsion systems vital for reducing transit times in deep space missions and facilitating military operations in increasingly complex environments. The announcement stresses that this RFI is for information purposes only and does not constitute a formal solicitation for proposals.
    The Defense Advanced Research Projects Agency (DARPA) issued a Request for Information (RFI) to seek innovative solutions for space-qualified nuclear thermal rocket propulsion engine design and integration. Responses are due by January 20, 2025. This RFI is part of DARPA's partnership with NASA's DRACO program, focusing on developing a compact nuclear thermal rocket engine fueled by high-assay low-enriched uranium (HALEU). The engine is designed for maneuverable operations in space, enhancing U.S. military capabilities and supporting future human missions to Mars. DARPA emphasizes the need for submissions that demonstrate expertise in areas such as autonomous engine control, nuclear safety analysis for launch authorization, and system integration with existing spacecraft. The document outlines eligibility for responses from a diverse range of entities, including research institutions and private companies. It stipulates submission requirements and formats, and clarifies that this RFI does not constitute a formal solicitation. The overarching goal is to explore advancements in propulsion efficiency to establish a robust space logistics network and promote dynamic space operations, ultimately ensuring U.S. superiority in space capabilities.
    Lifecycle
    Title
    Type
    Special Notice
    Similar Opportunities
    Mechanisms for Amplification of fusion Reaction Rates in Solids (MARRS) Proposers Day
    Dept Of Defense
    The Defense Advanced Research Projects Agency (DARPA) is hosting a Proposers Day webcast for its Mechanisms for Amplification of Fusion Reaction Rates in Solids (MARRS) program, aimed at informing potential proposers about an upcoming Broad Agency Announcement (BAA). The MARRS program seeks to enhance the understanding of mechanisms that can significantly increase nuclear fusion reaction rates in solids at or near room temperature, with a focus on experimental demonstrations. This initiative is critical for advancing research in nuclear fusion, which has significant implications for energy production and national defense. Interested parties can contact the BAA Coordinator at MARRS@darpa.mil for more information, and the Proposers Day is scheduled for January 20, 2026, with the BAA anticipated to be released in late December 2025.
    SPACE PROPULSION RESEARCH AND INNOVATION FOR NEUTRALIZING SATELLITE THREATS (SPRINT) BROAD AGENCY ANNOUNCEMENT (BAA)
    Dept Of Defense
    The Department of Defense, specifically the Air Force Research Laboratory, is seeking innovative research proposals through the Broad Agency Announcement (BAA-RQR-2019-0001) for the Space Propulsion Research and Innovation for Neutralizing Satellite Threats (SPRINT) program. This initiative aims to enhance spacecraft propulsion technologies to improve resilience against potential satellite threats, with a focus on various propulsion systems including chemical and electric thrusters. The program is critical for advancing national security capabilities and fostering technological innovation in aerospace. Eligible applicants, particularly small businesses, can submit white papers at any time during the 20-year open period, with anticipated contract awards ranging from $100,000 to over $50 million based on proposal quality and funding availability. For further inquiries, interested parties may contact Jillian Marroquin at jillian.marroquin@us.af.mil.
    In Space Manufacturing-Advanced Space Technologies for Resilient Operations (ISM-ASTRO)
    National Aeronautics And Space Administration
    NASA's George C. Marshall Space Flight Center (MSFC) is issuing a Request for Information (RFI) regarding In-Space Manufacturing-Advanced Space Technologies for Resilient Operations (ISM-ASTRO) to gather industry feedback on advancing in-space manufacturing capabilities, particularly focusing on metallic manufacturing methods. The objective is to define the current state of in-space manufacturing, identify mission infusion points that align with commercial plans, and determine near-term actions to enhance these methods for sustained presence in Earth orbit, the Moon, Mars, and other celestial bodies. This initiative is crucial for NASA's strategic goals, as it aims to increase mission flexibility, reduce reliance on spare parts, and promote exploration and innovation in space technologies. Interested parties are encouraged to submit their responses by January 16, 2026, to Brent Evans at brent.l.evans@nasa.gov or Jennifer Jones at jennifer.m.jones@nasa.gov, with responses limited to eight pages.
    Space Technology Research, Development, Demonstration, and Infusion (SpaceTech REDDI-2026)
    National Aeronautics And Space Administration
    The National Aeronautics and Space Administration (NASA) Headquarters is set to release a presolicitation for the "Space Technology Research, Development, Demonstration, and Infusion-2026 (SpaceTech-REDDI-2026)" initiative around December 9, 2025. This opportunity aims to solicit proposals through various Appendices under the Umbrella NASA Research Announcement (NRA), focusing on advancing U.S. space technology innovation and competitiveness, while fostering economic growth within the expanding space economy. Interested parties are encouraged to monitor the NSPIRES website for updates and can submit inquiries to HQ-STMD-SpaceTech-REDDI@nasaprs.com, as the solicitation will remain open for one year with annual releases anticipated.
    (RFI) Advanced Propulsion Acquistion Contract (APAC) Multiple Award Contract (MAC) Indefinite Delivery Indefinite Quantity (IDIQ) Contract
    Dept Of Defense
    The Department of Defense, specifically the Air Force Life Cycle Management Center (AFLCMC), is issuing a Request for Information (RFI) for the Advanced Propulsion Acquisition Contract (APAC), a Multiple Award Contract (MAC) Indefinite Delivery Indefinite Quantity (IDIQ) aimed at enhancing propulsion technologies for the U.S. Air Force. This contract seeks to rapidly develop and implement innovative propulsion capabilities across all lifecycle phases, including technology maturation, concept development, and sustainment, thereby ensuring the Air Force can meet current and future propulsion system requirements effectively. The APAC is critical for advancing novel propulsion technologies and system concepts, which are essential for maintaining the strategic capabilities of the U.S. military. Interested parties are encouraged to submit their responses to the RFI by October 15, 2025, and can direct inquiries to Tanner Alley at tanner.alley@us.af.mil or Capt Caelan Campbell at caelan.campbell.1@us.af.mil.
    Space Technology Advanced Research (STAR)
    Dept Of Defense
    The Department of Defense, through the Air Force Research Laboratory (AFRL), is soliciting proposals under the Space Technology Advanced Research (STAR) program to advance research and experimentation in space-flight technologies. This initiative invites white papers from all businesses, focusing on innovative solutions that enhance national defense capabilities in areas such as space vehicle functionality, mission effects, and command and control strategies. The anticipated contract awards range from $50,000 to $100 million, with a two-step submission process requiring white papers to be submitted via the AMRDEC SAFE website. Interested parties can reach out to the primary contact, Daniel J. Alvarado, at daniel.alvarado.12@spaceforce.mil or 505-853-4755 for further information, while noting that the offer due date is currently unspecified.
    Low Temperature Insulation
    Dept Of Defense
    The Department of Defense, through the Naval Air Warfare Center, is issuing a presolicitation notice for a sole-source contract focused on the research and development of advanced solid rocket motor internal insulation materials designed for extreme low-temperature operational requirements. The project entails laboratory-scale formulation, prototype production, and material characterization, with deliverables including test data, prototype-scale material lots, and supporting documentation. R.E. Darling Co., Inc. (REDAR) is identified as the only responsible source capable of fulfilling the requirements due to its proprietary formulations and specialized infrastructure. Interested parties may submit capability statements demonstrating their qualifications by the deadline of 15 days after posting, with submissions directed to Erin Villar at erin.m.villar.civ@us.navy.mil or Brian Gillead at larry.b.gillead.civ@us.navy.mil.
    Transformational AI Capabilities for National Security
    Energy, Department Of
    The Department of Energy's National Nuclear Security Administration (NNSA) is seeking information on Transformational Artificial Intelligence (AI) Capabilities for National Security through a Request for Information (RFI). This initiative aims to gather insights for the long-term Genesis program, which focuses on integrating advanced AI into nuclear weapons development and nonproliferation missions, thereby enhancing national security against evolving global threats. The RFI invites responses from a diverse range of stakeholders, including institutions, businesses, and universities, to address capabilities related to classified AI development, data curation, model enhancement, and partnership models. Interested parties must submit their responses by January 23, 2026, adhering to specific formatting and content guidelines, and can contact Clinton Rohloff or Stephanie M. Vigil for further information.
    Materials-Limited Technologies for the Moon and Mars
    National Aeronautics And Space Administration
    The National Aeronautics and Space Administration (NASA) is seeking industry input through a Request for Information (RFI) regarding materials-limited technologies applicable to its Moon and Mars exploration initiatives. The objective is to gather insights on potential technologies that can address NASA's identified Civil Space Shortfalls, particularly those hindered by structural materials challenges, which may include advancements in non-metallic materials or innovative materials processing. This RFI is crucial for informing future opportunities and collaborations, with responses due by 5:00 PM EDT on January 16, 2026, and should be submitted electronically to the designated NASA contacts, including Godfrey Sauti at godfrey.sauti-1@nasa.gov.
    Research and Development Innovations Broad Agency Announcement
    Dept Of Defense
    The Defense Threat Reduction Agency (DTRA) is soliciting innovative research and development proposals through its Broad Agency Announcement (BAA) HDTRA1-22-S-0003, aimed at countering weapons of mass destruction (WMD) and emerging threats. The BAA invites proposals for technologies at Technology Readiness Levels (TRL) 1-7, focusing on five key thrust areas: understanding WMD threats, enabling deterrence, controlling and defeating threats, protecting forces, and cross-cutting capabilities. This multi-year solicitation, active from February 2022 to February 2027, anticipates contract awards ranging from $500,000 to $5,000,000 over 1-3 years, with a two-phased proposal process. Interested parties should direct inquiries to the BAA Program Manager at dtra.belvoir.rd.mbx.rd-baa-inbox@mail.mil, and adhere to submission deadlines, including a final proposal submission date of September 19, 2025, for the latest addendum.