你相信存在外星人吗?为什么?

你相信存在外星人吗?为什么?
你相信存在外星人吗?为什么?

你相信存在外星人吗?为什么?
宇宙那么大 地球相当其中的小小的一个灰尘
在某个角落 只要拥有适当的温度 适当的H20
都有可能出现生命
只是我们有没有发现的问题了

不可全信，也不可不信！
因为世界之大，无奇不有。

我强烈相信有外星人，也许外星人就是我们未来的进化版，因为他们是未来的，掌握了先进的技术，穿梭时空回到我们这代。

笨！不知道罗纳尔多吗？！

我相信，哪怕他们现在还是个单细胞的生物，以后也可能成为智慧生物的！

有啊
我就相信

有。
自从1947年6月24日，美国退役空军飞行员在罗切斯山脉发现九个“飞起来像是跑出的碟子在水面上打漂的样子的飞行物”，世界各地陆续发现了许多的不明真相的飞行物，虽然有些人认为世界上没有外星人及UFO，但是，我相信外形生物的确存在。...

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有。
自从1947年6月24日，美国退役空军飞行员在罗切斯山脉发现九个“飞起来像是跑出的碟子在水面上打漂的样子的飞行物”，世界各地陆续发现了许多的不明真相的飞行物，虽然有些人认为世界上没有外星人及UFO，但是，我相信外形生物的确存在。

收起

有。
美国飞行员在某一个山脉发现九个“飞行物”，世界各地也发现了许多的不明真相的飞行物，虽然有些人认为世界上没有外星人及UFO，但是，我相信外形生物的确存在。

肯定有外星人的 想想看 在另外一个星球上有个生物和你一样问同样的问题 我们对于他们而言就是外星人了 哈哈

坚信不疑！！！！

信啊 见过 (在梦中)

有

相信
既然地球上有人
其他星球上为什么不能有外星人呢？

有啊,在外太空,或是^^^^^^地心.

相信.不能所有的报道都是假的啊!!

相信...不可以只有地球有生物存在...只是离的太远..银河系太大了..到不了而以...

这么大的银河系一定不只是只有地球生物
我相信有外星人的存在

一定有，起码我信

不信才怪，我见过外星人呢？在梦中

半信半疑

We must conclude from the work of those who have studied the origin of life, that given a planet only approximately like our own, life is almost certain to start. Of all the planets in our solar syste...

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We must conclude from the work of those who have studied the origin of life, that given a planet only approximately like our own, life is almost certain to start. Of all the planets in our solar system, we ware now pretty certain the Earth is the only one on which life can survive. Mars is too dry and poor in oxygen, Venus far too hot, and so is Mercury, and the outer planets have temperatures near absolute zero and hydrogen-dominated atmospheres. But other suns, start as the astronomers call them, are bound to have planets like our own, and as is the number of stars in the universe is so vast, this possibility becomes virtual certainty. There are one hundred thousand million starts in our own Milky Way alone, and then there are exist is now estimated at about 300 million million.
Although perhaps only 1 per cent of the life that has started somewhere will develop into highly complex and intelligent patterns, so vast is the number of planets, that intelligent life is bound to be a natural part of the universe.
If then we are so certain that other intelligent life exists in the universe, why have we had no visitors from outer space yet? First of all, they may have come to this planet of ours thousands or millions of years ago, and found our then prevailing primitive state completely uninteresting to their own advanced knowledge. Professor Ronald Bracewell, a leading American radio astronomer, argued in Nature that such a superior civilization, on a visit to our own solar system, may have left an automatic messenger behind to await the possible awakening of an advanced civilization. Such a messenger, receiving our radio and television signals, might well re-transmit them back to its home-planet, although what impression any other civilization would thus get from us is best left unsaid.
But here we come up against the most difficult of all obstacles to contact with people on other planets -- the astronomical distances which separate us. As a reasonable guess, they might, on an average, be 100 light years away. (A light year is the distance which light travels at 186,000 miles per second in one year, namely 6 million million miles.) Radio waves also travel at the speed of light, and assuming such an automatic messenger picked up our first broadcasts of the 1920's, the message to its home planet is barely halfway there. Similarly, our own present primitive chemical rockets, though good enough to orbit men, have no chance of transporting us to the nearest other star, four light years away, let alone distances of tens or hundreds of light years.
Fortunately, there is a 'uniquely rational way' for us to communicate with other intelligent beings, as Walter Sullivan has put it in his excellent book, We Are not Alone. This depends on the precise radio frequency of the 21-cm wavelength, or 1420 megacycles per second. It is the natural frequency of emission of the hydrogen atoms in space and was discovered by us in 1951; it must be known to any kind of radio astronomer in the universe.
Once the existence of this wave-length had been discovered, it was not long before its use as the uniquely recognizable broadcasting frequency for interstellar communication was suggested. Without something of this kind, searching for intelligences on other planets would be like trying to meet a friend in London without a pre-arranged rendezvous and absurdly wandering the streets in the hope of a chance encounter.

收起

相信,因为我见过

一切皆有可能。

空间那么大，我们只是一个小颗粒，不然有别的东西占据更大的空间，至于是什么，或许是外星人，或许是别的....

存在是一定的
但我不信地球上有人见到过

我相信，因为地球之外是否有生命存在仍然是个未解的谜。

死心塌地的信。凭什么只有地球生物啊，多独单。

我也是半信半疑