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天上有两个太阳?这似乎是科幻小说中的情节。不过,如果130万年后地球上还有人类的话,那么这可能是他们抬头仰望时就能看到的情景。欧洲航天局的天文学家对30万颗恒星的运行轨迹进行了研究,发现有一颗名为Gliese710的恒星在130万年后将运行到太阳系附近的奥尔特星云中。太阳系中的大多数彗星正是来自奥尔特星云,其中一些彗星受到恒星引力作用可能会与地球等行星相撞。Gliese710来太阳系“做客”会给附近天体的运行带来影响,虽然科学家还不确定其影响的方式和程度,但
There are two sun in the sky? This seems to be the plot in science fiction. However, if there are human beings on earth after 1.3 million years, this may be the scene they can see when they look up. The European Space Agency astronomer studied the trajectory of 300,000 stars and found that a star named Gliese710 will run into the Alte Nebula near the solar system 1.3 million years later. Most of the comets in the solar system come from the Altill nebula, and some of them come into contact with planets and other planets due to their stellar gravitation. Gliese710 to the solar system “guest ” will affect the operation of nearby celestial bodies, although scientists are not sure the way and extent of their impact, but