ASTEROID TYPES COMETS A  B  C  D  E  F  G  H  I  J  K  L  M  N  O  P  Q  R  S  T  U  V  W  X  Y  Z                    HOME ABOUT CATEGORIES SITE MAP COPYRIGHT ADVERTISE CONTACT entire Web this site Earth-grazer An asteroid or comet whose orbit occasionally brings it close to the Earth. See also near-Earth object (NEO). Related categories    • ASTEROID TYPES    • COMETS Also on this site: Encyclopedia of Alternative Energy & Sustainable Living Encyclopedia of History Transport Concepts & Designs (partner site) BACK TO TOP