Observed a capsule type craft land, then take off from a field across from a restaurant while noon hour traffic continued.

It was hot summer time, and my brother and myself were playing in our front yard which was beside a popular restaurant that sat on a corner at a busy intersection at the city limits.  There was a cattle grazing pasture diagonally positioned in reference to the restaurant.  With traffic coming and going, suddenly an object that greatly resembled the space craft of the day, (capsule shaped), sat down in the field slowly as fire was coming from the underneath side.  My brother and I stood in awe as we watched.  The craft sat there for what seemed to be five to ten minutes when with fire coming from underneath, it began lifting back into the air and rose several hundered feet, the abruptly turned on it's side and "shot off" with a great swooshing soud and left a mist type vapor in the air.  Our father, who worked at a metal company only a quarter of a mile from our house was leaving for lunch with a co-worker at that same time and witnessed the same occurrence.  We often still talk about what we had seen as children with our Dad, but to this day, I have never heard any other mention about what we saw that day by anyone in the Hopkinsville community.