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迄今为止与地球最相似的系外行星——“开普勒-452b”的发现,被美国国家航空航天局(NASA)称为寻找“另一个地球”旅途上的里程碑。消息传出后,各路网友脑洞大开。有人调侃:“不知这辈子能不能去‘另一个地球’买房。”想象虽然美好,但远水解不了近渴,人类未来的命运还系在地球上。难点一:往哪搬?想搬家,首先要选好新家,正如天文学家所做,寻找“另一个地球”。适合人类居住的星球,需具备多项要素。要有液态水和适宜的温度;有气压适
The discovery of the most similar extrasolar planet Earth-to- “Kepler-452b” so far has been a milestone on NASA’s search for “another Earth.” After the news came out, various users open their brains. Some people laugh: “I do not know if I could go to another planet in my life to buy a house.” “Imagination is beautiful, but far from being thirsty, and the fate of mankind in the future is tied to the earth. Difficult point: where to move? Want to move, we must first choose a new home, as the astronomers have done, looking for ”another earth ". A planet suitable for human habitation needs several elements. Have liquid water and appropriate temperature; suitable pressure