Question

look up in the sky 和 look up into the sky 的区别

Answer 1

The key point of the two is the feeling of "in" and "into".

Look up in the sky:it is just a body movement which means there is something need your attention on the direction of the sky.

Look up into the sky: this one is something with feeling. When you feel happy, anger or anything, someone may smile or cry. But someone may just look up into the sky. This is a body language.