一个由多国研究人员组成的小组宣布,他们可能已经找到了地球以外有生命存在的第一个证据——在地球上层大气中发现的地外细菌凝块。 虽然这些来自太空的微生物与地球上的细菌十分相似,但是科学家们认为,这些在他们从地球大气的边缘提取的空气样本中发现的活细胞不可能来自地球,因为他们与地面的距离太远了。 英国威尔士加的夫大学天文学 A team of multinational researchers announced that they may have found the first evidence of the existence of life outside the Earth - extraterrestrial bacterial clots found in the Earth’s upper atmosphere. Although these microbes from space are very similar to bacteria on Earth, scientists believe that the living cells found in the air samples they extracted from the edges of the Earth’s atmosphere cannot come from Earth because they are too far from the ground. . Cardiff University of Wales, Astronomy, UK