ROSES 2025: D.4 Theoretical and Computational Astrophysics Networks

The NASA Science Mission Directorate (SMD) is soliciting proposals for the “Theoretical and Computational Astrophysics Networks” element of the ROSES‑2025 omnibus research announcement. The program supports the development of collaborative networks that advance theoretical models, simulations, and computational tools for astrophysics. Funding will be provided as a grant or cooperative agreement, with a typical performance period of three years (up to five for some). Proposers must submit a Notice of Intent by 15 Oct 2026 and a full proposal by 3 Dec 2026. The solicitation is open to U.S. institutions (and certain foreign entities under specific conditions). • Target audience: universities, research institutes, and labs conducting astrophysics theory or high‑performance computing. • Funding mechanism: Grant or Cooperative Agreement (no contract). • Expected award size: not specified; typical NASA research grants range from $0.5 M to $2 M. • Mandatory NOI due 15 Oct 2026; full proposal due 3 Dec 2026. • Period of performance: 3 years (possible up to 5). • Eligibility: U.S. institutions; foreign participants only under no‑exchange‑of‑funds policy.