The Three Largest Primary Mirrors in Space

The James Webb Space Telescope boasts the largest primary mirror in space at 6.5 meters, followed by the Herschel Space Observatory at 3.5 meters, and the Hubble Space Telescope at 2.4 meters.

Sources

• guinnessworldrecords.com
• historyoftelescope.com
• It's the world's most powerful space telescope, with a mirror 6.5 metres in diam
• esa.int
• science.nasa.gov

Open the full topic