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[Dramatic music throughout]

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[WFIRST]

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[2010 Decadal Infrared Survey Telescope]

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16 years ago,

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the science community
asked for an infrared survey telescope.

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[Dark Energy, Dark Matter, Exoplanets]

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And for the last ten years,

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the best in the world

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have been building it.

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The pieces have come from all over:

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small firms across the United States;

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aerospace industry leaders;

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research centers like JPL.

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They took shape

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and joined systems built at NASA's
Goddard Space Flight Center,

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one of the few facilities in the world

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capable of handling a project

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of this magnitude.

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Here, the team assembled those pieces.

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The Spacecraft Bus — holding everything

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the observatory needs to thrive in space.

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The High-Gain Antenna System —

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communicating with Earth over a million miles away.

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The Coronagraph —

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performing magic with physics

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to see distant worlds.

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The Wide Field Instrument —

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scanning the sky
with a massive field of view.

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And, the Primary Mirror Assembly —

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the singular, light-catching eye.

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They were joined with protective layers

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 that shield them from the intense glare of the Sun

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and generate all the power
the observatory will ever need.

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Fully assembled,
the observatory was subjected

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to another battery of tests.

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And then prepared for careful transport

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to the Kennedy Space Center.

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The final work at Kennedy is done

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and the observatory is complete.

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The Nancy Grace Roman Space Telescope

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 is ready for launch.

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[Roman Space Telescope]

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[NASA]