I can fly but I have no wings I can cry but I have no eyes
wherever I go darkness follows me
what am I​

A cloud

Explanation:

It moves around in the sky. It also gives off rain (cry)

I already did this riddle and I was hard but I got it

Explanation:

its A cloud. Crying is rain, they fly in the sky, and darkness follows because they block the sun.

adding more details about the struggle rainsford experiences as he swims to the shore

answer; i believe that the correct answer is (scientific data);