Red Star like object that changes color flies at intense high speed in zigzag direction and circular motion.I was at a friends place playing computer games when her parents yelled out from the balcony outside that theres a UFO outside. The sky looked really weird and eeria as it was cloudy and the clouds were sort of reddish in color. That was when i saw a red starlike object flying at tremendous speed in a zigzag direction. It was kind of pulsating and changing its color to white and yellow.It flew toward our direction and when it was finally over us it kinda stopped and started moving in a circular/spiral motion right on top of us as if it was looking down on us until it got covered up by clouds. It wouldnt be an aircraft as it seemed to be outside the atmosphere like a big red star. And no planes can fly that fast (like a speed of a shooting star in zigzag direction). I had goosebumps all over my body all the time I was watching it with a few friends. What could it be?