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This is your telescope.
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An engineering marvel.
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An exploration powerhouse.
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Use it to look back in time
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and explore the first galaxies
that formed after the Big Bang;
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to peer into atmospheres of planets
orbiting the stars.
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It’s your eye-piece to the uncharted,
unknown and unimagined.
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This is the largest, most complex
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and challenging space telescope
ever constructed.
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It will change our understanding
of the universe
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and our place in it.
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The James Webb Space Telescope.
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Equipped with the largest primary mirror
ever to be flown in space;
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at 6.5 meters, it’s more than 6 times
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the size of the Hubble Space
Telescope primary mirror.
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Webb’s four, cutting-edge,
infrared instruments and cameras
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operate at super cold temperatures;
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temperatures colder
than the surface of Pluto.
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Getting this cold is done with the help
of the largest sunshield ever flown;
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a 5-layer, tennis court-size sunshield
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that blocks heat from the Sun,
Earth and Moon.
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Webb will be the first telescope
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to detect light from the most distant
galaxies in the Universe.
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These first galaxies formed
about 13.5 billion years ago,
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only 300 or so million years
after the Big Bang.
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Webb carries advanced technologies
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to tackle some of the most fundamental
questions about the Universe.
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How did the first galaxies
form and evolve?
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Are there chemical signatures
of the building-blocks of life
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on other worlds?
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Is our solar system unique?
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Launching such a large telescope into space
is an incredible engineering challenge.
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Fully deployed, Webb is too large
to fit inside any rocket fairing.
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Engineers designed it to be folded,
like origami, to squeeze inside
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the European Space Agency’s
5-meter diameter Ariane 5 rocket fairing.
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After launch, controllers on the ground
deploy Webb remotely.
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Deployment is an intricate ballet.
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For nearly 3-weeks,
controllers carefully unfold Webb.
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After this delicate dance, Webb’s
golden mirrors are precisely aligned
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using motors behind
each hexagonal mirror segment,
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adjusting them to form
one, perfect mirror.
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Once the instruments are cooled,
the exploration will begin.
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Webb is a technological challenge
like no other.
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Born of the efforts of thousands of people
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across the United States,
Canada and Europe.
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The James Webb Space Telescope
is your telescope.
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Use it to explore.
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To challenge theories.
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To see sights yet unseen.
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It’s yours to unfold the beauty
and mystery in the Universe, and…
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our place in it.
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[Explore Solar System & Beyond]
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[NASA]
