Ufo sighting at 1:45 AM while flying to Poland at 30.000 ft.10 seconds durationI am a 62 years old man and while flying from Rome to Krakow I saw what I am sure was an ufo. It was about 1:45 AM, our plane was at 30.000 ft and I didn't ask anyone if they sow the ufo but closed my eyes and prayed, our plane started to shake, I was sure it was going to crash into us I searched the internet to find the a similar shape but none matched what i sow,it was a rhomboidal shape with blue and red lights and it flew in a way that was amazing to say the least,effortless and almost like floating. It couldn't have been more than a tenth of a mile from our plane