Spanish language Q&A Forum

I’d like to see a comparison of using both to speak about the past 

I am trying to make my own sentences using preterite for ir etc. I wrote "Ella fue a casa"

but google is saying it should be "Ella se fue a casa". Why 'se'? is it like saying "she went home (to it)"?

Would it be "El vestido es tan hermoso como una mariposa?" for the dress is as beautiful as a butterfly?

and is this the same for comparing to multiple objects when the described object is singular: La luz es tan brillante como las estrellas.

Why is Hay used for It is foggy? Isn't foggy an adjective?