Took dog out back when we get out back i told my 6 year old daughter to look at the moon. she said what's them balls moving up there? so told her 2 get my phone. they looked like stars flying in formation in a straight line over my house. there was at least 20 about 20/40feet apart. then an airplane flew right beside it, looked like they were gonna hit at first. we went out front then the last 4 we're flying over the mountains towards harrisburg. harrisburg airport is about 40 miles from my house. i believe it was flying ne. i could only see the lights, they were in perfect formation the whole time. i never seen anything like this before. when every light went out of sight a very fast moving object flew by so fast chasing in same direction. i tried 2 get pictures and video of it but 2 far away.