Because this background light in space is very, very dim, and there are too many factors, such as bright celestial bodies, atmospheric light scattering, and artificial light sources used by humans, that would negatively affect our ability to observe it from Earth.

As such, this light can only be observed through a very powerful extraterrestrial telescope, such as the one used on the New Horizons mission as above.
spam fails_task lang_mismatch pii not_appropriate hate_speech sexual_content quality toxicity humor helpfulness creativity violence