Depiction of science themes
JANUARY 23, 2020

The JWST Cycle 1 Call for Proposals Is Now Reopened

We are pleased to announce that the JWST Cycle 1 call for proposals has now been reopened, with up to 6,000 hours available for general observers (GO). Proposals are due by 8 p.m. Eastern Time on May 1, 2020. The Cycle 1 Time Allocation Committee will meet in late July/early August 2020.

Multiple categories of proposals are offered, determined by program size and other criteria (see the charts below). The Cycle 1 call also provides for Calibration Proposals, Long-Term Proposals, Treasury Proposals, Survey Proposals, Theory Programs, Data Science Software development, and Archival Programs to support analysis of calibration, the Director’s Discretionary Early Release Science (DD-ERS) programs, and a subset of the Guaranteed Time Observations (GTO).

In the period before the deadline, the JWST community has organized many local proposal preparation workshops. Please consult the list of workshops in the Americas and in Europe/Africa/Asia/Australia to see if there is one near you. You may also submit any questions about proposing to the JWST Help Desk.

General Observer proposal categories

Archival Research proposal categories


For technical assistance, please contact the JWST Help Desk.

The NASA James Webb Space Telescope, developed in partnership with ESA and CSA, is operated by AURA’s Space Telescope Science Institute.