Blueish-green light flying erratically/then was blinking very fast red and went back the other wayMy husband and I witnessed an object flying across the sky very quickly with blueish-green lights. At first I thought it was a drone, but it was too high in the sky and moving way too fast. It made no sound as it got half way into our view of the sky. It then stopped for a few seconds, and continued towards us. It then got to about right above us and stopped again. Then it moved up and down, and making very erratic movements. It then started blinking very fast a reddish color and flew very fast back the direction it came from, and off into the distance dropped out of the sky at an alarming rate.