SAM #DARPA-SN-27-03

DARPA Cattle Run Proposers Day for Autonomous Cislunar Spacecraft

DARPA is inviting potential proposers to learn about its Cattle Run program for autonomous spacecraft and persistent cislunar access. - Opportunity: Proposers Day to explain the program, answer questions, and support teaming discussions. - Program focus: Develop autonomous spacecraft using renewable propulsion to enable persistent access to cislunar space. - Phase 1: Develop and launch a demonstrator below geosynchronous orbit within 18 months. The spacecraft has no required form factor and is expected to gather on-orbit data demonstrating propulsion performance, sufficient acceleration, accurate vehicle control, and autonomous navigation. - Phase 2: Develop multiple spacecraft and demonstrate persistent cislunar access. - Event and contact: DARPA Conference Center, Arlington, Virginia; BAA Coordinator, DARPA-SN-27-03@darpa.mil. - Notice update: Amendment 01 was added. The latest notice omits the program description previously included; the original PDF remains available, and the provided history does not state specific amendment terms. - Commercial details: No OEMs, vendors, specific products, quantities, contract value, or contract period are identified.

Description

PROPOSERS DAY:DARPA is hosting a Proposers Day in support of DARPA-SN-27-03 Cattle Run program on Tuesday, November 10, 2026, at the DARPA Conference Center (675 North Randolph Street, Arlington, VA 22203) from 8:00am to 5:00pm EST. The purpose of this conference is to provide information on the Cattle Run program; promote additional discussion on this topic; address questions from potential proposers; and provide a forum for potential proposers to meet for teaming opportunities.

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