美国MSNBC网站对外星生命可能存在的迹象进行了盘点,这些迹象意味着人类在宇宙中可能并不孤单。众多恒星可能存在外星生物搜寻地外文明计划(简称SETI)研究所资深天文学家肖斯塔克指出,虽然还没有发现直接证据证明地球以外的世界有生命存在,但宇宙中毕竟拥有数量惊人的恒星,因此,存在 The US MSNBC website takes a look at the possible signs of extraterrestrial life, suggesting that humans may not be alone in the universe. Many stars may exist Extraterrestrial Search SETI Institute senior Astronomer Shostak pointed out that although no direct evidence has been found that there is life outside the Earth, but the universe has an amazing number of, after all The stars, therefore, exist