Why James Webb Space Telescope's Has A Signature Color?

#nasa #jwst #elon musk #destiny #science #spacex #space news #webb telescope
#jameswebbtelescope
#jameswebb

NASA's James Webb Space Telescope has to stay super cool to
observe the cosmos. How does it beat the heat? Black paint.
As the agency explained in its new YouTube series "Elements of
Webb," the James Webb Space Telescope's radiator is painted black
to absorb heat. Just like how black asphalt gets hot in the
summertime, objects that are black are generally hotter as they
absorb all wavelengths of light and convert it into heat.
(Comparatively, white objects reflect light and do not absorb heat.)
Webb engineers use this principle to keep the telescope cool.
Webb essentially has two sides, a hot side and a cool side, which are
separated by the spacecraft's sun shield. The cool side is where its
highly sensitive scientific instruments reside, and sun shield blocks
any heat from the sun from reaching those instruments.
The cool side "even has a radiator to keep it extra cool," NASA
multimedia specialist Sophia Roberts said in the video. That radiator
and everything except Webb's bright gold mirrors are black on that
side, she explained.
UCukFlrrzXUUJCeCLYlwddTQ?sub_confirmation=1

Related Videos:
The James Webb Space Telescope Explained In 9 Minutes
Why the James Webb Space Telescope looks like that
James Webb Space Telescope First Ever Images!
James Webb Telescope NEW Alien Civilization Discovery on Proxima
B!