Largest telescope mirror in space
- Who
- James Webb Space Telescope (JWST)
- What
- 6.5 metre(s)
- Where
- Not Applicable
- When
- 25 December 2021
The largest segmented telescope mirror is on the James Webb Space Telescope (JWST). Its mirror is more than 6.5 meters across. JWST launched on 25 December 2021.
The largest unsegmented mirror was on the Herschel Space Telescope. Its mirror was 3.5 meters in diameter. Herschel launched 14 May 2009 and its mission ended 17 June 2013.