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GBT Observer Alert
Data Storage Work
The Green Bank Observatory is in the process of expanding the storage capacity on one of our data storage machines. The work starts Monday, July 14 at 16:00 ET and will continue until all data is successfully restored. Data stored in the GBT Legacy Archive will be unavailable during this period.
Current Call for Proposals
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The National Radio Astronomy Observatory/Green Bank Observatory (NRAO/GBO) Call for Proposals for the Semester 2026A will close on Wednesday, 30 July at 22:00 UTC (5:00 P.M. ET).
The Semester 2026A Proposal Call information can be viewed here.
Additional Information
Useful Resources
Previous Calls for Proposals
In the posts below you will find information on previous proposal calls (in reverse-chronological order) including for each semester the proposal call results and a list of the science program.