2026年9月25日星期五
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Is there a hidden 'Planet 9' in our solar system?

來源 Space.com 航天10 天前
內容摘要

This item is a 英文-language original; headline and summary shown as published.

For more than a century, astronomers have been captivated by the idea that an undiscovered planet could be lurking in the furthest reaches of our solar system.

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所屬頻道
科學
所屬地區
美洲
原文語種
English
條目編號
science-ee6c8fc2

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Is there a hidden 'Planet 9' in our solar system? · 寰宇通鑑