It's not your monitor. It is actually the sun but i messed around with the sky lab and ended up with a sky like that. I have tried using the moon with the same clouding but it turns the clouding red/orange and gives the sky a different colour. Can't add lights to the ships as they aren't a model i did and i don't really like to add things to models others have done. that's why i have left them with the one blue light down their side.