Scientists think the glass was fused in a meteoritic impact 30 million years ago, making it rare and luminous enough to befit a king.

科学家认为这种玻璃是由3000万年前的陨石冲击地面融溶而成，它的珍稀和光亮足以适用于国王。

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Carbon has two non-radioactive isotopes, and in material from the solar system, including most meteoritic minerals, these are mixed in a well-known ratio.

碳有两个非放射性的同位素，在太阳系的物质中，包括在大多数的陨石矿石中，它们的混合比例是众所周知的。

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But suffice to say, as the largest recorded such event since 1908, NASA is eager to analyze a portion of the meteoritic fragments.

FORBES: NASA Eager To Analyze Russian Meteor Fragments

Early lodestones, for instance, were almost always made of meteoritic fragments.

ECONOMIST: Eros

By Martian standards, these gullies appear to be young, since some of them have eroded features such as meteoritic craters that are known to have formed relatively recently.

ECONOMIST: Martian chronicles