After an October afternoon of bow hunting for deer; both I and my best friend hiked back to his truck to drive home. While sitting on the tailgate of his truck to eat a sandwich, we both saw a high flying jet with a blinking light going from a South to North direction.Then we saw another light coming on the same flight path at a high rate of speed that came from the same direction. There was just a solid bright light that the object omitted. The flying object slowed down to the same speed as the jet. We thought at the moment that it might be a military plane that was following the other plane. But then the rear flying aircraft did a 90 degree turn and when straight up and disappeared into the outer atmosphere on this clear night sky. Over the years I have told this story to friends. Some believed and some would ask if we had been drinking? The answer is no, we had not drank any alcohol.This was the late 70s and we knew of no aircraft that could turn on a 90 degree angle and go into outer space. The Harrier Jet could take off from an aircraft carrier or land but this thing did a 90 degree turn while going approximately 500 miles per hour, and accelerated straight up into the night sky.