Cathode Advancements in Science and Technology for Oxygen Resistance (CASTOR) DARPA-PA-25-07-03
Summary
AI-generated · Mar 14, 2026Submissions of innovative basic or applied research are sought to develop efficient, high-performance, long-lived oxygen-compatible cathodes for air-breathing very low Earth orbit electric propulsion systems. This Disruption Opportunity is part of the Disruptioneering program (DARPA-PA-25-07).
Awards will be issued as Other Transaction (OT) for Prototype projects, with a total cap of $900,000 for the combined Phase 1 Base (Feasibility Study) and Phase 2 Option (Proof of Concept). This total includes government funding and any required or proposed cost share. For more details on phases and requirements, view the Program Announcement on SAM.gov under solicitation DARPA-PA-25-07.
The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is issuing a Disruption Opportunity (DO), inviting submissions of innovative basic or applied research for efficient, high-performance, long-lived oxygen-compatible cathodes for use in air-breathing very low earth orbit (VLEO) electric propulsion (EP) systems. This DO is issued under the Program Announcement for Disruptioneering, DARPA-PA-25-07. All awards will be made in the form of an Other Transaction (OT) for Prototype project. The total award value for the combined Phase 1 base (Feasibility Study) and Phase 2 option (Proof of Concept) is limited to $900,000 (see Section I.C for information more information on phase structure). This total award value includes Government funding and performer cost share if required or proposed. To view the DARPA Program Announcement (PA) for Disruptioneering, visit SAM.gov under solicitation number DARPA-PA-25-07: https://sam.gov/opp/bae5fa32f4ee4cdb9a070a14309b2c66/view.
From Solicitation posted on Mar 13, 2026The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is issuing a Disruption Opportunity (DO), inviting submissions of innovative basic or applied research for efficient, high-performance, long-lived oxygen-compatible cathodes for use in air-breathing very low earth orbit (VLEO) electric propulsion (EP) systems. This DO is issued under the Program Announcement for Disruptioneering, DARPA-PA-25-07. All awards will be made in the form of an Other Transaction (OT) for Prototype project. The total award value for the combined Phase 1 base (Feasibility Study) and Phase 2 option (Proof of Concept) is limited to $900,000 (see Section I.C for information more information on phase structure). This total award value includes Government funding and performer cost share if required or proposed. To view the DARPA Program Announcement (PA) for Disruptioneering, visit SAM.gov under solicitation number DARPA-PA-25-07: https://sam.gov/opp/bae5fa32f4ee4cdb9a070a14309b2c66/view.
From Solicitation posted on Apr 09, 2026Notice history
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Solicitation Posted Mar 13, 2026
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Solicitation LATEST Posted Apr 09, 2026No changes from previous notice
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