Behind the Webb: Reflecting on Webb’s Mirrors (Episode 4)

Webb’s giant primary mirror is its most striking feature, but several more mirrors help control the flow of light through the telescope. Meet the secondary, tertiary, and fine-steering mirrors.

“Behind the Webb” is a recurring video series from HubbleSite, home of the Hubble Space Telescope and the upcoming Webb Space Telescope. Join host Mary Estacion as she goes behind the scenes to watch the construction and testing of the parts that will make Webb the world’s most powerful infrared telescope.

Links: Technology at the Extremes