Ing my night vision on the porch with my son….After looking for som time my son could se a round object fore som seconds.Then i saw a very strong light an a object came in from the right.The object pulsed a couple times and then there was a remarkably bright light.This happend over and over again across the sky.I understood immediately that this was something spesial.I have seen many satellites and none have had such strong lights.It had quite a high speed when it entered but slowed down after it came to the mountains on the other side of the sky.I lost the object on the other side because there were many clouds there.After i lost the object flew six aircraft in the same route as the object had flown.