地外文明wiki › 专题 › 其他 › Dark Matter 专题 TOPIC-000265 Dark Matter Hypothetical form of matter proposed to explain missing mass in galaxies and clusters. The book argues that many observations attributed to dark matter can be explained by antigravity. 专题领域 其他 相关文章 反重力——起源与表现（Antigravity: Its Origin and Manifestations） 2 7 月, 2026
