UFO does not exist, because is too far for UFO to fly to earth,
; w3 L" l) Q/ J9 t) G& V5.39.217.778 j& s; K6 _- e5 B7 \
light travels @300,000km per second, the distance from other planet has live forms may be more than 1 million light years
3 L; T- b% {; S5.39.217.77
6 |. {; s3 v. v8 }. E& y$ R8 L7 ^distance is the limitation for travel |