Most asteroids are the rubble left over from the formation of the solar system about 4.6 billion years ago. They're usually too far away from Earth to pose a threat to people. But because no one wants to repeat the dinosaurs' misfortune, keeping an eye on the ancient rocks and comets zooming through space is paramount.
На шее Трампа заметили странное пятно во время выступления в Белом доме23:05
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霍爾木茲海峽（the Strait of Hormuz）是全球最重要的石油和天然氣運輸咽喉。伊朗並不需要完全封鎖這條狹窄水道——哪怕只是可信的威脅和小規模干擾，就足以推高全球油價。若持續下去，也可能增加國際社會要求降溫的壓力。