WEBVTT FILE

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The James Webb Space Telescope is the next

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premier space observatory.

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It will extend the discoveries of the Hubble Space

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Telescope.

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And observe the birthplaces of planets, stars

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and galaxies.

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It is named after James Webb. NASA's second administrator and champion

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of many NASA science missions.

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At 3 stories high and the size of a tennis court,

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his will be the largest telescope ever sent into space.

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And 100 times more powerful than Hubble.

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It is so big it has to fold to fit in the

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rocket only 5.5 meters wide.

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And unfold segment by segment, once in space.

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Webb's mirrors are coated with a super

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thin layer of gold that is about 1000 atoms thick to optimize

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their reflectivity in the infrared. Webb will launch

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from French Guiana.

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It is launched near the equator taking advantage of Earth's greater rotation

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speed there to boost launch performance.

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Webb will orbit the sun 1 million miles from Earth at

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the second Sun-Earth Lagrange point. The telescope

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will observe infrared light with unprecedented sensitivity.

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It will see the first galaxies born after the Big Bang

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over 13.5 billion years ago.

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Webb's infrared cameras are so sensitive

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they must block light from the Sun, Earth, and Moon.

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The 5-layer sunshield is like having sunblock

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of SPF 1 million.

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music

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music

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music

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Webb is an international mission

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with contributions from the European Space Agency

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and Canadian Space Agency.

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Scientists all over the world

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will be able to use Webb

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to explore further into space and back

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into time.

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beeps

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beeps