The JWST science community keeps breaking records! The Cycle 4 Call for Proposals saw a total number of 2,377 unique proposals; this is 446 more proposals than the previous JWST record of 1,931 during the Cycle 3 call.

The total time requested is ~78,000 hours, corresponding to a ~9:1 oversubscription rate (similar to Cycle 3). The Cycle 4 call had newly-defined science categories; “High-z galaxies” was the most popular, followed closely by “Exoplanet Atmospheres” and “Stars and Stellar Populations”. 

The proposal review process will be made possible thanks to the broad support of the scientific community, with over 600 members participating in the JWST Cycle 4 review.