Quantcast

Interview: Webb Space Telescope Mirrors

March 3, 2010

The James Webb Space Telescope features a mirror 21.3 feet across that consists of 18 separate, hexagon-shaped mirrors. The mirror components are being tested both individually and together. A specially designed vacuum chamber at Marshall Space Flight Center simulates the extreme conditions of spa, subjecting the mirror segments to temperatures as low as 400 degrees below zero. credit: NASA



comments powered by Disqus