Large circular orb appeared in the sky moving quickly in a south, southeast direction and disappeared after about four seconds.While driving on route 240 toward Sconticut Neck Road, a bright circular orb appeared in the sky. It resembled a shooting star in appearance and behavior, though it was much larger and appeared to be much closer. It moved in the same direction I was driving and moved much more quickly then an airplane would. It appeared out of nowhere, moved forward in the sky parallel to the earth, and after about four seconds, it disappeared.