Two objects light up then slowly disappear as they travel across sky.My wife and I witnessed two unknown objects light up or emit a very bright light for a split second, then the objects slowly disappeared. They never stopped moving in the sky, but one abruptly changed its direction. They were traveling from south to north. The event lasted for about 2 minutes until the objects faded from view. One appeared to be following the other. There was no sound at all and there were no flashing lights.