I would imagine that the James Webb was built at least in part utilizing the prior data and experience they had from making and using the Hubble… Aka the Hubble walked so the James Webb could run.
Plus this new fella works mainly in the infrared, there are so many more photons with a lower energy level than with visible light.
As the energy/frequency levels go up, the number of photons decrease.
The drop between levels can be so dramatic, that around the turn of the 20th century physicists coined a term for the shift to the next level beyond visible light in the opposite direction to infrared - The Ultraviolet Catastrophe.
I would imagine that the James Webb was built at least in part utilizing the prior data and experience they had from making and using the Hubble… Aka the Hubble walked so the James Webb could run.
Plus this new fella works mainly in the infrared, there are so many more photons with a lower energy level than with visible light.
As the energy/frequency levels go up, the number of photons decrease.
The drop between levels can be so dramatic, that around the turn of the 20th century physicists coined a term for the shift to the next level beyond visible light in the opposite direction to infrared - The Ultraviolet Catastrophe.