第1个回答 2006-06-11
Calculate , the mankind can carry on the velocity of light and travel 1 million years later according to the human scientist, that is to said, so long as the E.T. evolved 1 million years earlier than the mankind, they had the ability to call on the earth, but still there is not a conclusive evidence that prove E.T.s have called on the earth so far. That is to say , the earth people are chances of the universe , the E.T. does not exist .