that the Hubble Space Telescope only takes photos in black and white?
scientists only add color later by using a technique that
imitates how our eyes see color, only a fraction of the range of frequencies of light and
their wavelengths, called the electromagnetic spectrum, is visible to humans.
The photoreceptors in our eyes, called “cone cells,” perceive wavelengths of
light that appear roughly red, green, and blue. All other colors are
combinations of these three, and they’re known as the primary colors of light, when Hubble scientists take photos of space, they use filters
to record specific wavelengths of light. Later, they add red, green, or blue to
color the exposures taken through those filters, the result is full-color
images that have a variety of purposes for scientific analysis, image credit: geralt/ Pixabay,
and it is all very neatly explained in the video above.
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