JWST Observer
@jwstobserver.bsky.social
JWST Observer is managed by STScI and provides astronomers with the most up-to-date information, news, and events related to observing with JWST.
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.
January 8, 2026 at 3:17 PM
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.
January 7, 2026 at 4:57 PM
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.
January 6, 2026 at 5:57 PM
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
January 5, 2026 at 7:15 PM
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
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.
January 4, 2026 at 2:51 PM
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.
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
December 11, 2025 at 3:17 PM
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
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
December 9, 2025 at 2:00 PM
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
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
December 3, 2025 at 1:56 PM
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
The redesigned #JWST User Documentation (JDox) homepage features a new structure and icons for easier navigation: ow.ly/EKST50XACBs
December 2, 2025 at 1:57 PM
The redesigned #JWST User Documentation (JDox) homepage features a new structure and icons for easier navigation: ow.ly/EKST50XACBs
Review the technical reports published by the #JWST Science and Operations Center teams in 2025: ow.ly/NQVq50Xxsg2
November 25, 2025 at 2:51 PM
Review the technical reports published by the #JWST Science and Operations Center teams in 2025: ow.ly/NQVq50Xxsg2
Build 12.1 of the Science Calibration Pipeline includes improvements to all four #JWST instruments. Read more: ow.ly/MNZo50XvLg2
November 21, 2025 at 2:13 PM
Build 12.1 of the Science Calibration Pipeline includes improvements to all four #JWST instruments. Read more: ow.ly/MNZo50XvLg2
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
November 12, 2025 at 3:23 PM
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
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
November 11, 2025 at 2:17 PM
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
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
November 10, 2025 at 5:21 PM
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
Help us improve the #JWST user experience by providing feedback through our 2025 user survey: ow.ly/5xYs50XjGtu
October 29, 2025 at 12:58 PM
Help us improve the #JWST user experience by providing feedback through our 2025 user survey: ow.ly/5xYs50XjGtu
Join us for a special JWebbinar to continue discussions with the #JSWT Users Committee (JSTUC). Get the details: ow.ly/iQIv50Xe7SM
October 17, 2025 at 2:20 PM
Join us for a special JWebbinar to continue discussions with the #JSWT Users Committee (JSTUC). Get the details: ow.ly/iQIv50Xe7SM
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
October 8, 2025 at 8:24 PM
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
October 6, 2025 at 4:02 PM
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
October 2, 2025 at 6:45 PM
#JWST Cycle 5 proposals can take advantage of NIRCam and NIRISS multistripe capabilities. Read more: https://ow.ly/E41350X5OrY
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
September 25, 2025 at 3:00 PM
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
Access all of the materials, including presentations, notes, exercises, and videos, covered during the 2025 JWST Summer School held in August: ow.ly/CW4150X0NQn
September 23, 2025 at 1:10 PM
Access all of the materials, including presentations, notes, exercises, and videos, covered during the 2025 JWST Summer School held in August: ow.ly/CW4150X0NQn
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
September 9, 2025 at 2:24 PM
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
Read the latest about JWST's Rocky Worlds Director's Discretionary Time program, including final targets and an upcoming information session: ow.ly/mgxA50WReQt
September 4, 2025 at 2:14 PM
Read the latest about JWST's Rocky Worlds Director's Discretionary Time program, including final targets and an upcoming information session: ow.ly/mgxA50WReQt