ROSES 2025: B.4 Space Weather Science Application Research-to-Operations-to-Research deadline 2026
The current listed application deadline is April 10, 2026. Use this page to verify timing fast, then move into the full grant record for planning, comparison, and drafting.
Application Countdown
Use this page as the fast check for timing, then jump into the full grant record for filters, drafting, and comparison.
Quick facts
- Opportunity number
- NNH25ZDA001N-R2O2R
- Last updated
- December 8, 2025
- Expected awards
- Not listed
Deadline summary
The close date above is the date for the Step-2 proposal due date. The Step-1 proposal due date is 08/26/2025. Step-2 proposals cannot be submitted if a Step-1 proposal was not submitted. NOTICE: Amended December 8, 2025. The Step-2 Due Date for this program, B.4 Space Weather Research-to-Operations-to-Research has been delayed to April 10, 2026. This program uses a two-step submission process in which only those who previously submitted a Step-1 proposal and were invited to continue can submit...
Key dates
Before you apply
Eligibility snapshot
Proposers must be affiliated with an institution at nspires.nasaprs.com/ and, in general, NASA provides funding only to U.S. institutions. Organizations outside the U.S. that propose on the basis of a policy of no-exchange-of-funds; consult the NASA Grant and Cooperative Agreement Manual (GCAM) (https://www.nasa.gov/grants-policy-and-compliance-team/#Regulations) for specific details. Some NRAs may be issued jointly with a non-U.S. organization, e.g., those concerning guest observing programs for jointly sponsored space science programs, that will contain additional special guidelines for non-U.S. participants. Also reference the GCAM for special instructions for proposals from non-U.S. organizations that involve U.S. personnel for whom NASA support is requested.
