While boating late at night on long lake me and 3 others witnessed 2 circular lighted objecst pass overhead and diasppear over the treeline. they were following each other. both had one singular white light and trailed each other in a straight line. the lights blinked on and off without consistancy. the witnesses with me all agreed that it was not a plane as we see many over the lake and when they pass overhead you can hear them and see their navigation lights. this made no noise at all and definitely had no other lights but white.