Possible ufo sighting ;Was on way home from store today on US 64 EB ; Near Exit 494 Witnessed a round convexed shape craft in the sky @ 4:00 pm Eastern Time. No clouds in sky ; No other aircraft visible to me in the sky. Object reflected sunlight ; witnessed this object for about 2 minutes before it just dissapeared in front of me. No motion like a typical aircraft would resemble. No contrails / exhaust. Object did not go up or to the left or right ; Just dissapeared? No other aircraft in sky. No lights on object. Through my winshield looked to be the size of a volly ball. Do not have a rational explination of what this could be.