Planetary Society logo
  • “Exploration is in our nature.” - Carl Sagan

Bruce Murray Space Image Library

James Webb Space Telescope tower test

James Webb Space Telescope tower test
James Webb Space Telescope tower test Once in space, NASA’s James Webb Space Telescope (JWST) must extend the spacecraft’s warm electronics away from its ultra-sensitive gold mirror and scientific instruments. JWST is designed to pick up faint heat signatures from faraway astronomical objects—including exoplanets—and must be kept extremely cold to work. NASA Goddard Space Flight Center