Activity for ylluminate‭

Type	On...	Excerpt	Status	Date
Question	—	How thick does an atmosphere have to be in order to make the sky "light up" during "daytime" human or near human ocular sensitivity? If a planet were to have a very thin atmosphere how thick or thin would it have to be to allow there to be a daytime and a nighttime given human or near human ocular sensitivity? In other words, there should be no differentiation between day and night unless there's enough of an atmosphere to facil... (more)	—	over 6 years ago