In 2018 I'm standing outside on a clear night on my front deck and off in the distance this light came into view. At first I thought it was a helicopter from it's front light . But this light would hover for a second in one spot then it would be in anouther spot instantly. Like it was there one second and then when the lights would go out it was in anouther part of the sky and was just moving here and there almost instantly.i couldn't hear no sound .then out of no we're here was another ball of light just like the first one and together would move from spot to spot in a very small section of the sky. Then it hit me these strange lights were over a nuclear power plant. This plant is call peach bottom nuclear power plant. This was a night it was a very quiet night all the Stars were out clear sky. So I was able to tell that this wasn't a Star nor the moon these lights made no sound and the way they moved over this power plant was like they were measuring out the property or mapping out it lay out out. Then both lights just took off heading I believe south away from the plant and was gone with in a matter of second's. Iits really hard to describe in words with out seeing this your self. I guess what got me the most was that I lived only a quarter mile maybe less from that plant. I never witnessed any lights at night over in that area especially over the top of the power plant moving in strange ways with absolutely no sound at all.the lights were a very bright light and if they were looking on the ground you would of seen a beam of light from both craft but it seemed like that wasn't what they were doing these light seamed like they were mapping out the property and very quickly was gone heading South away from the plant and away from me and were I was standing watching. It's was strange to me the way they moved and how there was no sound and how fast they were when they left.