Me, my wife and her sister were driving on highway 138 near Lone Pine, Ca when my wife noticed a very bright light flying above the Inyo Mountains. It was pulsating different colors of light from blue to green to white. I stopped our car and we watched it slowly fly north along the mountain range. We were scared but more fasinated. The light then seem to get bigger and bigger and it was then we realized it was coming towards us. I got scared and turned off the headlights. The light seemed to pause for a little bit, then it sped away at an incredible speed to the north. Within a second it was gone.