Description : How far away is Io from earth?
Last Answer : Zeta ii Reticulai although almost barely invisible to the eye isabout 3.3 x 10 tot he 14/15 power away which is about 39 lightyears..the NEAREST star is FOUR light years - thus, one like in somany films ... .....now that is...who knows in 20 years...we could very welland hopefully be Interstellar..