8 bright red spheres moving slowly across the sky before disappearing without traceI went into the back garden to collect coal for our fire. The sky was clear; there were plenty of stars visible. On returning to my house I looked up to see four bright red dots (they looked like red stars initially) moving very slowly across the sky in a northerly direction. They remained visible for about 3-5 minutes before slowly fading away at approximately the same point in the sky. I called my wife out to see them, and over the next few minutes another two stars/dots appeared and faded away at approximately the same place as the previous objects. Finally, my son came down and saw another two appear and fade away in the same way. I have never seen anything like this before in my life!