The Defense Advanced Research Projects Agency (DARPA) Defense Sciences Office (DSO) is sponsoring a Proposers Day webcast to provide information to potential proposers on the objectives of an anticipated Broad Agency Announcement (BAA) for the Mechanisms for Amplification of fusion Reaction Rates in Solids (MARRS) program. The Proposers Day will be
held via live webcast on Tuesday, January 20, 2026, from 11:00 a.m. to 5:00 p.m. (Eastern Time). Advance registration is required for viewing the webcast. Note that all times listed in this announcement and on the registration website are Eastern Time.
The goals of the MARRS Proposers Day are to: (1) introduce the research community (industry, academia, and Government) to the MARRS program vision and goals; (2) explain the mechanics of a DARPA program and the milestones of this particular effort; and (3) encourage and promote teaming arrangements among potential organizations that have the relevant expertise, facilities, and capabilities for executing a research and development program responsive to the MARRS program goals.
DARPA anticipates releasing the MARRS BAA in late December 2025. If released, the BAA will be available on https://sam.gov/ and http://www.grants.gov/. Following Proposers Day, DARPA may post the presented materials to the DARPA website.
To maximize the pool of innovative proposal concepts, DARPA strongly encourages participation by nontraditional proposers (including small businesses, academic and research institutions, and first‐time government contractors) in events such as this and any subsequent solicitation.