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Solicitation

Cathode Advancements in Science and Technology for Oxygen Resistance (CASTOR)

DARPA-PA-25-07-03

Defense Advanced Research Projects Agency, Def Advanced Research Projects Agcy. Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology).

127 open like this View on SAM.gov Markdown

Response deadline

April 27, 2026

Closed 188 days ago. Posted April 9, 2026, first published March 13, 2026. Scheduled to archive May 27, 2026.

Get the next one like this from Defense Advanced Research Projects Agency by email, the day it is posted.Find my opportunities

This one closed in 2026

127 like it are open now in research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology)

All 127 open in research and development in the physical, engineering, and life sciences (except nanotechnology and biotechnology)

Description

As published on SAM.gov.

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.

Attachments

Files listed on SAM.gov. The ones we hold a copy of download from here; the rest open SAM's download, which needs no account.

Publications

Every notice SAM.gov issued under this solicitation number, oldest first. Each is a separate record on SAM.

  1. March 13, 2026

    Solicitation

    Due April 27, 2026. SAM.gov, notice 0f3678f0c676408ebdd2b40703463157

    2 revisions on SAM
    • April 9, 2026: publish, solicitation
    • March 13, 2026: publish, solicitation

  2. April 9, 2026

    Solicitation

    Due April 27, 2026. SAM.gov, notice eb0b7c04c54f4dbb876cb2ee796aedeb

    2 revisions on SAM
    • April 9, 2026: publish, solicitation
    • March 13, 2026: publish, solicitation

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