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Comet C/2011 L4 (PANSTARRS)

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Comet C/2012 S1 (ISON)

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Web Extras

The James Webb Space Telescope

NASA is steaming ahead with plans for a 6.5-meter space telescope optimized for observing in the infrared.
By Richard Talcott
Published: August 24, 2004
Astronomers tend to look toward the future more than most other scientists. It's why they were planning the Galileo spacecraft's journey to Jupiter even before the twin Voyagers had lifted off the launch pad. It's why initial plans for the Spitzer Space Telescope were being made before its predecessor, the Infrared Astronomical Satellite, had started to reveal the unique discoveries that could be made through observations of infrared radiation. And it is why astronomers are drooling over the possibilities of the James Webb Space Telescope (JWST) even while Hubble continues to dazzle.
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