行星假说,顾名思义,即是建立可科学的基础上关于宇宙中行星的一系列假说。例如:有些星体的存在只是取决于某些天文学家一时的想法,后来却“消失”了。
这一铱异常为阿尔瓦雷斯假说提供了强有力的支持,尽管小行星本身从未被发现。
This iridium anomaly offers strong support for the Alvarez hypothesis even though no asteroid itself has ever been discovered.
如果该发现得到证实,这颗星球就是在银河系中所发现的第一颗外来的行星,同时该发现也将违背有关行星起源的最主要的假说。
If true, the world is the first planetary immigrant ever detected in the Milky Way. The find would also violate the leading hypothesis of how and where planets form.
盖亚假说引发我们把行星看作活的有机体。
The gaia hypothesis invites us to view the planet as a living organism.
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