Behind the Webb
Technology at the Extremes
Episode 6: Troubleshooting Webb
Aug 18, 2010
At Northrop Grumman, engineers are testing the systems that willcontrol Webb from the ground. Because Webb will orbit 940,000 miles(1.5 million km) from Earth, it's vital to ensure perfect long-distance control.
Episode 5: Webb at the World Science Festival
Jul 14, 2010
Visitors to the World Science Festival in New York City were greeted by a startling sight: the Webb telescope. The life-sized model of the telescope gave viewers a glimpse at the next big leap for orbiting observatories.
Episode 4: Reflecting on Webb's Mirrors
May 14, 2010
Webb is a reflecting telescope, which means it relies on mirrors to capture the light it uses to make images. At Tinsley Laboratories in California, Webb's multiple mirrors are taking shape and being tested.
Episode 3: The Big Chill
Feb 23, 2010
The Webb telescope's huge primary mirror is made up of 18 smaller mirrors. At NASA's Marshall Space Flight Center in Huntsville, Ala., environmental and thermal testing of these mirrors is preparing them for the hazards
Episode 2: Jack of All Sunshields
Dec 31, 2009
Because Webb sees infrared light, it must be kept extraordinarily cold. Perhaps the most important component for that task is Webb's huge sunshield, which protects the telescope from the Sun's energy.
Episode 1: Uncovering MIRI's Detectors
Dec 8, 2009
Webb's "detectors" convert images into a digital signal that can be beamed to Earth. Join us at the Jet Propulsion Laboratory, Calif., where these vital pieces are undergoing testing.
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