We lastly know simply how darkish it’s in deep area. NASA’s New Horizons spacecraft has made the primary exact measurements of the ambient mild that suffuses the universe, referred to as the cosmic optical background.
The cosmic optical background is so dim that it’s not possible to measure with any precision from Earth – the glow of objects within the internal photo voltaic system far outshines it. “Each time you attempt to measure it from Earth, or from close to Earth, you’re going to…