It was the first time I saw blue/Green slow light in the sky. I've seen once like pink Light very close from my Windows in Schaerbeek( brussels )but it didn't move the same way. It was more static and very close ( less than 2 meters) from me. Never knew what it really was. It was big like a melon then it became small like tangerine, and then became big like orange. The color inside was like yellow/ orange and outside strong pink. It was very static Then it came to the ground and dissapeared. This time ( 2 days ago) it was like a very big slow falling star into the direction of Balmoral Woods (Spa Belgium.) I hope it will help you
