Physics of the Cosmos
Exploring fundamental questions regarding the physical forces of the universe

Program News and Announcements

6 August 2024

James Webb Space Telescope Cycle 4 Call for Proposals

We are pleased to announce the release of the Cycle 4 Call for Proposals for the James Webb Space Telescope (JWST) General Observer time and funding for Archival Research and Theoretical Research programs. Participation in this program is open to all categories of organizations, both domestic and foreign, including educational institutions, profit and nonprofit organizations, NASA Centers, and other government agencies.

Proposals are due by 8p Eastern (5p Pacific) on Wednesday 16 October 2024. The version of the Astronomer's Proposal Tools (APT) required for proposal submission is 2024.5 or higher. This version will be delivered around 22 August 2024. We encourage prospective investigators to start preparing their proposals as soon as possible.

The Cycle 4 Telescope Allocation Committee will meet at the end of January/early February 2025, with selections announced in March 2025.

For details, please consult the full Call for Proposals. There have been significant changes, notably to page lengths and Science Categories. Please be sure to consult the What's New section for more information, and submit questions to the JWST Help Desk.

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