SCIENCE STUDY

An unusual blue comet gives us an insight into the past

作者：TEENS

是彗星还是外星母舰？不同寻常的天外来客引起热议

People have been watching 3I/ATLAS, an object from another star system (星系), since July. It has led to questions: Is it a comet (彗星) or an alien spacecraft (外星飞船)?

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