Answer:
It is a path of cow juice spread across the sky but cannot be seen by the naked eye
Without a bridle, or a saddle, across a thing I ride a-straddle. And those I ride, by help of me, though almost blind, are made to see.
I can travel from there to here by disappearing, and here to there by reappearing.
What asks but never answers?
They try to beat me, they try in vain. And when I win, I end the pain.
What do angels sing in the shower?
Difficult
Animal
Easy
Food
Funny
Kids
Logic
What am I?