We were sitting on the roof outside of my friends window, we first noticed the object when we were looking at the stars. there were 3 glowing disks in the shape of a triangle. we assumed it was a plane at first but then it started hovering and moving in different directions and paths. it hovered for a while when she took a video of it her phone crashed. we then saw it go upward and dissapear. when her phone turned back on we had a short video of the objects in the sky. we then assumed it could be a ufo. it was completely silent and seemed to have come out of no where. we were surprised but excited because we were not expecting to see anything like that.