At about 11:00 pm on 7/21/18, i was looking at the night sky and stars. it was a clear night. right in my view, within a 2-second interval of time, there was an instantaneous appearance of at least 15 disc-shaped objects all flying from the north to a southwest direction. all of the discs flew at the same speed however they were not in an-evenly spaced formation. they all flew in the same direction,very fast, and then disappeared. the discs were uniformly ovoid-shaped, and white with distinct edges, however no shadow or outline. there was no trace of light or any other object that appeared afterwards.