Tonight my wife and i witnessed an object in the sky moving in an erratic, southern direction in greenville county, sc. it had brilliant white lights which strobed in a fast, random fashion. it was moving quickly but erratically, and made no noise at all. about halfway through the sighting, it appeared to move immediately backwards, midflight. the direction change was startling. then it resumed its southern direction. the object was dark and didn't seem to reflect any of the strobing lights. at one point, there seemed to be other flashing lights surrounding it, but they did not reappear. in all, the event lasted about 20-30 seconds. never seen anything like it before. confident that it didn't appear or behave like a meteor, satellite, or normal aircraft.