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UFO does not exist, because is too far for UFO to fly to earth,  tvb now,tvbnow,bttvb  S; [* y" E2 b) T+ Z
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light travels @300,000km per second, the distance from other planet has live forms may be more than 1 million light years
. m0 D! ?3 j. U1 S8 C% otvb now,tvbnow,bttvb5.39.217.77:88986 G$ l, U& Q% m" A* f1 F2 j
distance is the limitation for travel
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