According to Quran that there is Jinn and it is not visible nor collide.  But we can detect its weight and potentially gravity.   There is a believe that in total there are seven heavens and Only the lowest is with light. There are many planets like earth but we cannot see them or touch them.  All seven heavens and between are belongs to Allah.  (Ref. Miracles of Quran http://www.speed-light.Info)