Fact Sheet

Inspired by the success of the Hubble Space Telescope, NASA, ESA and the Canadian Space Agency have collaborated since 1996 on the design and construction of a scientifically worthy successor. Due to be launched in 2021, the James Webb Space Telescope is expected to have as profound and far-reaching an impact on astrophysics as did its famous predecessor.

Announcements

Announcements

JWST Cycle 1 Proposal Schedule Update
1 June 2020

The uncertainties resulting from COVID-19 continue to impact the Cycle 1 schedule. STScI, NASA, ESA, and CSA have decided to delay announcing a formal schedule for JWST Cycle 1 GO/AR proposals. A further update on the schedule is anticipated in mid- to late-July.

News

News

New launch date for James Webb Space Telescope
28 June 2018After completion of an independent review, a new launch date for the James Webb Space Telescope has been announced: 30 March 2021.

From Our Partners

From Our Partners

Tower Extension Test a success for NASA's James Webb Space Telescope
9 June 2020

To test the James Webb Space Telescope's readiness for its journey in space, technicians successfully commanded it to deploy and extend a critical part of the observatory known as the Deployable Tower Assembly.

NASA's James Webb Space Telescope full mirror deployment a success
31 March 2020

In a recent test, NASA's James Webb Space Telescope fully deployed its primary mirror into the same configuration it will have when in space.

NASA's James Webb Space Telescope clears critical sunshield deployment testing
21 October 2019

The sunshield for NASA's James Webb Space Telescope has passed a test critical to preparing the observatory for its 2021 launch. Technicians and engineers fully deployed and tensioned each of the sunshield's five layers, successfully putting the sunshield into the same position it will be in a million miles from Earth.

NASA's James Webb Space Telescope has been assembled for the first time
28 August 2019

Reaching a major milestone, engineers have successfully connected the two halves of NASA's James Webb Space Telescope for the first time at Northrop Grumman's facilities in Redondo Beach, California.

Spacecraft Testing

Spacecraft Testing

#14: Tests, moving to a new home, and more tests
4 June 2018In the last year, the James Webb Space Telescope (JWST) and in particular the telescope and the instruments have passed some key milestones on their road towards launch, now planned for 2020.
#13: Testing the coolest instrument on the James Webb Space Telescope
18 October 2017As the James Webb Space Telescope progresses toward launch, the telescope and its scientific instruments are undergoing an arduous series of checks to ensure their flight readiness.
4-Jul-2020 13:19 UT

ShortUrl Portlet

Shortcut URL

https://sci.esa.int/jwst