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

Location:	Federal
Posted:	Mar 14, 2026
Due:	Apr 27, 2026
Agency:	DEPT OF DEFENSE
Type of Government:	Federal
Category:	A - Research and development
Solicitation No:	DARPA-PA-25-07-03
Publication URL:	To access bid details, please log in.

Active

Contract Opportunity

Notice ID

DARPA-PA-25-07-03

Related Notice

Department/Ind. Agency

DEPT OF DEFENSE

Sub-tier

DEFENSE ADVANCED RESEARCH PROJECTS AGENCY (DARPA)

Office

DEF ADVANCED RESEARCH PROJECTS AGCY

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General Information

Contract Opportunity Type: Solicitation (Original)
Original Published Date: Mar 13, 2026 01:17 pm EDT
Original Date Offers Due: Apr 27, 2026 04:00 pm EDT
Inactive Policy: Manual
Original Inactive Date: May 27, 2026
Initiative:
- None

Classification

Original Set Aside:
Product Service Code: AC12 - NATIONAL DEFENSE R&D SERVICES; DEPARTMENT OF DEFENSE - MILITARY; APPLIED RESEARCH
NAICS Code:
- 541715 - Research and Development in the Physical, Engineering, and Life Sciences (except Nanotechnology and Biotechnology)
Place of Performance:

Description

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/Links

Contact Information

Contracting Office Address

675 NORTH RANDOLPH STREET
ARLINGTON , VA 222032114
USA

Primary Point of Contact

BAA Coordinator
CASTOR@darpa.mil

Secondary Point of Contact

History

Mar 13, 2026 01:17 pm EDTSolicitation (Original)

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

Related Document

See also