离开地球到异星生活,长久以来一直是人类的梦想。进入航天时代之后,人口爆炸和地球资源的枯竭,使“移民异星”变得更具吸引力,也显得更为急迫。然而,想要在浩瀚的宇宙中找到一颗与地球环境相差无几,或者至少让人类“过得下去”的星球,可以说难上加难。尽管科学泰斗史蒂芬·霍金在今年春天给出了“人类会在50年内移民月球”的预言,但没有大气层的月球远远算不上宜居之地。到目前为止,我们还只能通过科幻作品,表达“被困在摇篮里”的无奈。 Leaving Earth to Alien life has long been a human dream. After entering the space age, population explosion and the depletion of earth resources have made “immigration alien” more attractive and urgent. However, it can be even harder to find a planet in the vast universe that is almost the same as the Earth’s environment, or at least to make people “survive.” Although the scientific fighter Stephen Hawking has given this spring a prediction that “humans will emigrate to the moon in 50 years,” the atmosphereless moon is far from livable. So far, we can only express the frustration of “being trapped in the cradle” through science fiction works.