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如果有人告诉你,一颗水星大小的行星正在化作烟尘消失,你相信吗?快来看看是怎么回事吧。美国科学家声称,一颗距地球1,500光年的不确定的行星显
If someone tells you that a planet of Mercury size is disappearing into smoke, do you believe it? Come and see what’s going on. U.S. scientists claim that an indefinite planet of 1,500 light-years from Earth appears