neon green, round,traveled very very fast. no sound no flashing.

MY SON WAS DRIVING ME HOME ON A 3 MILE SREATCH OF COUNTRY ROAD. I CAUGHT SIGHT OF A GREEN PINPOINT LIGHT BEHIND US. I STARTED TO ASK HIM IF HE SAW IT COMMING, AS IT WAS GETTING BIGGER FAST, SO I KNEW IT HAD TO REALLY BE MOVING AT A GOOD CLIP. I GOT "DO YOU SEE"..... SPOKEN, AS IT PASSED BY OUR CAR. HE SAW IT AND IT SCARED HIM SO BAD, HE WAS ALOVER THE ROAD.IT WENT OUT OF SIGHT OVER THE MOUNTAINS IN FRONT OF US. IT WAS A MOONLESS NIGHT AND SO BLACK OUT THAT IT REALLY WAS HARD TO COMPARE THE SIZE TO ANYTHING. WE WERE SURROUNDED MY MOUNTAINS, BUT COULDN'T SEE THEIR OUTLINE. THE THING THAT WAS MIND BOGGLING, WAS THE COLOR. IT WAS A FLOURESENT GREEN, NO LIGHT WAS AROUND IT, IT WAS HARD EDGED, I GUESS. HARD TO DISCRIBE, BUT NEITHER ONE WILL FORGET IT. I CAN SEE IT AS CLEAR AS IF I SAW IT YESTERDAY.