An American P-51 Mustang gives chase to a UFO.

AERIAL COMBAT • AERIAL WARFARE • AEROPLANE • AIRBATTLE • AIRBORNE • AIRCRAFT • AIRPLANE • ALIEN • ARTFORM: SILHOUETTE • ARTWORK • BACKLIT • BATTLE • BIZARRE • CHASING • CLOUD • CLOUDS • COLOR IMAGE • COLOUR IMAGE • COMBAT AIRCRAFT • COMBAT • CONCEPT • CONFLICT • DANGER • DIGITALLY GENERATED IMAGE • EXTRATERRESTRIAL • FIGHTER AIRCRAFT • FIGHTER JETS • FIGHTER PLANES • FLIGHT • FLYING SAUCERS • FLYING • HORIZONTAL • ILLUSTRATION • ILLUSTRATIONS • ILUSTRATION • IMAGINATION • LEGEND • MENACE • MOTION • MUSTANG • MYSTERY • NIGHT • NO PEOPLE • OUTDOOR • OUTDOORS • OUTERSPACE • OUTSIDE • P-51 MUSTANG • P-51 • PARANORMAL • PERIL • PLANE • PROPELLER • SILHOUETTE • SILHOUETTES • SKY • SPACE (COSMOS) • SPACE SHIP • SPACE • SPACECRAFT • SPACESHIP • SPATIAL • SUN • SUNLIGHT • SURREAL • TAG (GAME) • THREAT • TRANSPORTATION • TWO OBJECT • TWO OBJECTS • UFO • UFOLOGY • WARBIRD • WARPLANE • WITHOUT PEOPLE