UFO does not exist, because is too far for UFO to fly to earth,
+ A; |* V+ O9 x9 \TVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。- \8 m2 m. E2 F8 {
light travels @300,000km per second, the distance from other planet has live forms may be more than 1 million light yearsTVBNOW 含有熱門話題,最新最快電視,軟體,遊戲,電影,動漫及日常生活及興趣交流等資訊。* U. c& F* C5 q6 N; Y
, P2 |* g. A: H7 kdistance is the limitation for travel |