Black metal sphere with a red flashing light appeared suddenly in my window, it was hovering and wobbling

I recall seeing a tiny black dot in the distance appear and move very fast from left to right in a straight line. A second later a black metal sphere with a red flashing light appeared in front of my bathroom window where I was showering. It hovered and was wobbling a lot from right to left and left to right, but stationary in the same position just wobbling. It looked like a bomb was my first thought. I ran out of the shower screaming for my boyfriend to come look. He saw it for about 5 seconds then it was gone in the blink of an eye. He ran outside to look for it but it was gone