The James Webb Space Telescope

Welcome to ESA's website for JWST's scientific community


News and Highlights

30 January 2017 Vibration testing on the James Webb Space Telescope successfully resumed last week.

The vibration testing on the telescope and instruments of JWST successfully resumed last week at NASA's Goddard Space Flight Center, in Greenbelt, Maryland. Detailed information can be found in the following press release issued by NASA:


20 January 2017 - Call for nominations for the JWST user committee (JSTUC).

Ken Sembach (director of STScI) and John Mather (JWST senior project scientist) have issued a call for expression of interest from community members who would like to serve as JSTUC members. The deadline is Tuesday 14 February 2017. At least two members of the JSTUC will be astronomers from the ESA member states and we encourage interested scientists to apply. Here is the text of the call:

---- CALL ----

STScI is constituting a User Committee for the James Webb Space Telescope. The JSTUC will be drawn from the U.S, Canadian and ESA communities, and will include representatives from the JWST instrument teams. The JSTUC charter is linked here At this time, STScI is calling for expressions of interest from community members who would like to serve as JSTUC members. Self-nominations are welcomed. Submissions should include a cover letter and a one-page curriculum vitae summarizing the nominee’s relevant background and JWST-related interests, and should be submitted by e-mail to There is no restriction on citizenship. Nominations will be considered through February 14, 2017.

Ken Sembach, Director, Space Telescope Science Institute

John Mather Senior Project Scientist, James Webb Space Telescope, Goddard Space Flight Center


05 January 2017 - The JWST cycle 1 GTO call for proposals and ERS call for notice of intent to propose are available.

The first versions of the Garanteed Time Observer (GTO) call for proposal and of the Early Release Science (ERS) call for notice of intent to propose are now available on the web site of JWST's scientific operation center (STScI):

News and Highlights - Archive

The mission

JWST newsletter

JWST's instruments

JWST is a joint NASA/ESA/CSA mission


Mission Status:

Launch in October 2018


20-24 March 2017 in Venice, Italy

 Science with the Hubble and James Webb space telescopes V

04-06 October 2017 in ESAC, Spain

ESAC 2017 JWST workshop - Planning your JWST observations - [GET SET]

Image of the month:

The primary mirror of JWST is being carefully inspected before the start of the acoustic and vibration tests that the telescope together with the scientific instruments will undergo in the coming months.

(Credit: NASA/Chris Gunn)

Image of the Month - Archive