Summary:
- NASA has delayed the call for proposals for its next astrophysics mission due to budget uncertainties. This means the selection and development of a new astrophysics mission has been postponed.
- The delay is a result of the ongoing budget negotiations in Congress, which have created uncertainty around NASA's future funding. This uncertainty makes it difficult for NASA to commit to a new mission at this time.
- The delay will likely push back the launch of the next astrophysics mission, which would have provided valuable new data and insights about the universe. This is a setback for the scientific community, who were eager to see the next generation of astrophysics research take flight.