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December
3, 2025
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News
JWST Observer News includes the latest updates on proposing, the calibration pipeline, and software targeted to the astronomical community. Stay informed by subscribing at the bottom of the page.
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Discover the New JWST Documentation Homepage
December 2, 2025The redesigned JDox homepage features updated icons for easier navigation.
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Technical Documents Published in 2025
November 25, 2025Review the technical reports published by the JWST Science and Operations Center teams in 2025.
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Pipeline News: Build 12.1 of the Science Calibration Pipeline Is Now Available
November 21, 2025Build 12.1 includes improvements to all four JWST instruments.
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Another Record Proposal Submission from JWST Observers
November 12, 2025STScI received a total of 2,935 proposals requesting almost 101,751 hours of observing time for General Observer, Survey, Pure Parallel, Archival Research, Target of Opportunity, and Joint programs, with an oversubscription rate of 13:1.
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New Pathloss Corrections for NIRSpec Multi-Object and Fixed Slit Spectroscopy Are Available
November 11, 2025The latest reference files deliver significant improvements on the point and uniform source flux calibrations.
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The JWST 2025 User Survey Is Now Available
October 29, 2025Help us improve the JWST user experience by providing feedback through our survey.
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A Second Special JSTUC Community Forum JWebbinar Is Scheduled
October 17, 2025Join us for this special JWebbinar to continue discussions with the JSWT Users Committee (JSTUC).
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APT Guide Stars Availability in Bright Crowded Fields
October 8, 2025Proposals should be submitted even if observations appear non-schedulable in APT due to guide star availability.
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Detector Multistripe Capability for NIRCam and NIRISS Is Available for Cycle 5 Proposers
October 2, 2025Cycle 5 proposals can take advantage of NIRCam and NIRISS multistripe capabilities.
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JWST Cycle 5 Deadline Extension in Case of Government Shutdown
September 25, 2025In the event of a potential partial U.S. government shutdown, STScI will extend the deadline for JWST Cycle 5 proposals involving scientists who are unable to undertake research during that time.
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JWST 2025 Summer School Materials Are Now Available
September 23, 2025Access all of the materials covered during the JWST Summer School in August.
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Rocky Worlds DDT Updates: Final Target List and Virtual Information Session
September 4, 2025Read the latest about JWST's Rocky Worlds Director's Discretionary Time program, including final targets and an upcoming information session.
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Online JWST Proposal Resources for Cycle 5
September 3, 2025Use our online resources to help prepare your Cycle 5 proposal.
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New Sky Background Images for NIRISS Wide-Field Slitless Spectroscopy
August 26, 2025These new images significantly improve the subtraction of the sky background in WFSS data.
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The NASA James Webb Space Telescope, developed in partnership with ESA and CSA, is operated by AURA’s Space Telescope Science Institute.