a flash movin slow at first,changes into a spherical shape,circles,races west,leavin behind a hazy greenish smoke trailWas lying on the beach,was a clear cloudless night,half moon,very few stars over head,when ive suddenly seen this flash across the sky movin very slow at first,then in a split second the shape changed into something spherical,it seemed to stop for a moment and then circled ad though it was searchin for sometin,was yellowish and then it suddenly raced west,leavin a thin trail of greenish violet,hazy kind of smoke trail.