On April 16th 1999 I observed an unknown object.At first glance I thought I had seen a comet, but as I observed the object was travelling tail first, and the tail looked like it was solid. When I glanced again, I noticed what appeared to be another comet shaped object that was larger in diameter than the first, and had a much shorter tail, and looked like it was attached to the other one. They were Blueish/white in colour, and appeared to have flashing lights in the centre. The sky was clear and visibility was good, there was no sound or vapour trail. The object looked like it was perhaps 10x larger than a jet fighter, and was travelling about 5x faster. The object was travelling in a NNE direction. I am a 38year old father of two.