Most meteorites striking the earth vaporize instantly.大多数撞击地球的陨星会当即汽化。A sonic boom was heard by observers on the shore as the meteorite fell to earth.陨星坠落地球的时候,海岸上的观察者听到了震天的巨响。These meteorites are Rosetta stones to the history of the universe.这些陨星有助于理解宇宙的历史。