Star Travelling, Turned Around And Vanished In 1-2 Seconds?

[TheUnexpectedKill]

So I was outside at 9:30pm and looked up into sky and I suddenly saw two stars going in formation going north-west and then the upper one just turned around and travelled for 1-2 seconds at hyper speed and then disappeared. What could it possibly be? I think it was an UFO. I live in Norway btw. Can someone answer me at what it was? And if so, how could it go super-fast?

[Brownsfan77]

I witnessed same thing but only 1 star in 2012. I was only able to witness the turn. It appeared did like a u-turn and disappeared.