JWST Observer

Illustration of the JWST mirror on a space background with different space images in each segment

STScI has released the timeline for the #JWST Cycle 6 Call for Proposals. The proposal deadline is September 30, 2026. Read more: ow.ly/U5vL50Y6AOr

Illustration highlighting the golden mirrors of the Webb Space Telescope in space

The availability of the Deep Space Network may impact #JWST science operations, depending on when Artemis II launches. Get the details: ow.ly/6SJT50Y1Ljx

Promotional image for the 247th meeting of the American Astronomical Society in Phoenix, Arizona 4-8 January 2026

Brenda Frye will chair a special session — Extragalactic Time Domain Science with #JWST — today from 10 to 11:30 am in Room 224B at #AAS247 to discuss a DDT program of ~1000 hours to monitor the transient sky. The session is designed to engage the community and gather inputs.

Illustration of the Webb Space Telescope in space highlighting it's golden mirrors

The STScI Town Hall at #AAS247, starting today at 12:45 pm in Room 221A, will include updates on Hubble & #JWST operations, opportunities with Roman, a progress report on the JWST/HST Rocky Worlds DDT program, and highlight synergies with the upcoming Habitable Worlds Observatory.

Promotional image for the 247th meeting of the American Astronomical Society in Phoenix, Arizona 4-8 January 2026

Marcia Rieke will chair a special session today from 10 to 11:30 am in Room 224B at #AAS247 on JWST Deep Galaxy Searches: What We've Learned from the First 3 Years, focusing on deep surveys and results from a sampling of #JWST observations.

Promotional image for the 247th meeting of the American Astronomical Society in Phoenix, Arizona 4-8 January 2026

If you love all things #JWST, then you don’t want to miss this special session chaired by Adam Burgasser — JWST ♡ Brown Dwarfs: Discoveries, Populations, and Atmospheres — highlighting exciting discoveries from many approved programs today from 2 to 3:30 pm in Room 224B at #AAS247.

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Join us for Webb Office Hours on January 8th and 22nd at 11 am (ET) to get your data-related questions answered by #JWST experts: ow.ly/BXTO50V6VNJ

Space Telescope Science Institute (STScI) logo

If you’re attending #AAS247 in person, stop by the STScI exhibitor booth during regular booth hours to learn details about #JWST and STScI's multi mission endeavor.

Promotional image for the 247th American Astronomical Society Meeting in Phoenix, Arizona 4 to 8 January 2026

If you are at #AAS247 in Phoenix from January 4 to 8, don’t miss the various #JWST-related events, including 3 special sessions and the STScI Town Hall on January 7. You can also visit us at the STScI Exhibitor Booth.

Line drawing of JWST on a background of the Deep Field observed by JWST using NIRCam

The December JSTUC meeting included presentations on a variety of topics: #JWST Mission updates, Cycle 5 results, Cycle 6 plans, policy changes for the Director's Discretionary programs, grants allocations, and other updates. Read more: ow.ly/Rl8W50XHs49

Promotional image for Webb Office Hours showing Webb's gold mirrors with a headset

Join us for Webb Office Hours on December 11th at 11 am (ET) to get your data-related questions answered by #JWST experts. There is only 1 session this month: ow.ly/BXTO50V6VNJ

"Feedback" text on starry background

The #JWST 2025 User Survey will close at midnight (ET) on December 12th. Please take this opportunity to provide your feedback: www.surveymonkey.com/r/DB93DMQ

Screenshot of redesigned JDox home page displaying on a tablet on top of a starry background

 The redesigned #JWST User Documentation (JDox) homepage features a new structure and icons for easier navigation: ow.ly/EKST50XACBs

Line drawing of JWST on a composite background of the Cosmic Cliffs observed by JWST

Review the technical reports published by the #JWST Science and Operations Center teams in 2025: ow.ly/NQVq50Xxsg2

Line drawing of JWST on a background of the Cartwheel Galaxy observed by JWST using MIRI

Build 12.1 of the Science Calibration Pipeline includes improvements to all four #JWST instruments. Read more: ow.ly/MNZo50XvLg2

Illustration highlighting golden mirrors of Webb Telescope in space

STScI received a total of 2,935 #JWST proposals requesting almost 101,751 hours of observing time for GO, Survey, Pure Parallel, Archival Research, Target of Opportunity, and Joint programs, with an oversubscription rate of 13:1. Get the details: ow.ly/Fmiq50Xqy9Q

Line drawing of JWST on a composite background image of Stephan's Quintet observed by JWST

The latest reference files for #JWST NIRSpec Multi-Object and Fixed Slit Spectroscopy deliver significant pathloss improvements on the point and uniform source flux calibrations. Read more: ow.ly/f9OW50XpWTz

Promotional image for Webb Office Hours

Join us for Webb Office Hours on November 13th at 11 am (ET) to get your data-related questions answered by #JWST experts. There is only 1 session this month: ow.ly/BXTO50V6VNJ

"Feedback" text on starry background

Help us improve the #JWST user experience by providing feedback through our 2025 user survey: ow.ly/5xYs50XjGtu

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Join us for a special JWebbinar to continue discussions with the #JSWT Users Committee (JSTUC). Get the details: ow.ly/iQIv50Xe7SM

Illustration of magnified Webb mirror hexagons showing different images of Webb's science capabilities with an image of the telescope in the middle hexagon

For #JWST Cycle 5, proposals should be submitted even if observations appear non-schedulable in APT due to guide star availability in bright crowded fields. Get the details: ow.ly/qlTG50X8LK8

Join us for Webb Office Hours on October 9th and 23rd at 11 am (ET) to get your data-related questions answered by #JWST experts. APT and ETC experts will be available for proposal preparation questions during the October 9th session: https://ow.ly/BXTO50V6VNJ

#JWST Cycle 5 proposals can take advantage of NIRCam and NIRISS multistripe capabilities. Read more: https://ow.ly/E41350X5OrY

Collage of space images within a hexagon mirror illustrating JWST's science themes

In 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. Get the details: ow.ly/pErA50X2eAi

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Access all of the materials, including presentations, notes, exercises, and videos, covered during the 2025 JWST Summer School held in August: ow.ly/CW4150X0NQn

Webb Office Hours promotional image

Join us for Webb Office Hours on September 11th and 25th at 11 am (ET) to get your data-related questions answered by #JWST experts. APT and ETC experts will be available for proposal preparation questions in the September sessions: ow.ly/BXTO50V6VNJ

Artist's concept of rocky exoplanet GJ 486 b

Read the latest about JWST's Rocky Worlds Director's Discretionary Time program, including final targets and an upcoming information session: ow.ly/mgxA50WReQt

Screenshot of the top of the JDox homepage shown on a tablet with a space background

Don't wait! Check out the online resources STScI offers to help you prepare your #JWST Cycle 5 proposal: ow.ly/C0qU50WQofI

Line drawing of JWST on a composite background of the Cartwheel Galaxy observed by JWST

New sky background images for #JWST's NIRISS Wide-Field Slitless Spectroscopy mode significantly improve the subtraction of the sky background in WFSS data. Read more: ow.ly/8U9e50WMevy

Line drawing of JWST on a background of Stephan's Quintet observed by JWST using MIRI

A new MIRI Wide Field Slitless Spectroscopy mode, which enables efficient spectroscopic observations of multiple sources in a single pointing, is available for #JWST Cycle 5. Get the details: ow.ly/Cq8G50WKcM5