I was sitting with my friend on a bench when i saw something in the sky. i first thought it was an airplane but it didn't look like it. it looked just like a star, it was very far so i don't know what is it's exact shape. it was first moving up but then it changed direction and started to go down but not in a acute angle.It was moving pretty fast for an object that far away. i was shocked and i showed it to my friend. she saw it too. that wasn't the first time i saw something like that. last summer i was lying on my back in the pool. the nights were hot so i could swim at night. i was looking at the sky and i saw something. i thought it was a shooting star but then it changed direction very fast and started to go up. it was moving over the sky for a while and then it just dissapeared.