Home » Podcasts » Episodes » Episode 4: Reflecting on Webb's Mirrors
Bookmark and Share

Episode 4: Reflecting on Webb's Mirrors

14 May 2010, 04:00 UTC
You don't have the right version of the adobe flash player to see this video. Please upgrade or install it at "http://get.adobe.com/flashplayer/"
Subscribe to iTunes

Webb's mirrors capture and direct light from the distant universe to create the telescope's images. Webb's primary mirror — with its vast expanse made up of 18 segments — gets most of the attention, but several more mirrors help control the flow of light through the telescope. Webb has a secondary, tertiary and fine-steering mirror, each appropriately shaped for the action it must undertake. The mirrors' ultimate goal is to get the light to the telescope's detectors in order to record and translate it into imagery.

Basic science concepts about how telescopes work from Amazing Space

Universe Today's post about Reflecting Telescopes

Wikipedia's entry about Reflecting Telescopes

Latest Vodcast

Latest Podcast

Advertise PTTU

NASA Picture of the Day

Astronomy Picture of the Day