重点叙述流星天文学的历史与现状；流星群的地面和空间观测；流星雨观测和理论辐射点；

Especially, the history and status of meteoroid astronomy, the ground-based and space observations of meteoroid streams, the observed and theoretical radiants about meteor showers;

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现在天文学家认为那是一颗在高空燃烧的流星。

Now astronomers think it was a meteor that burned up high in the atmosphere.

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天文学家对本周的象限仪座流星雨进行了观测，然而他们更多的是沉醉在星光之下，而非忧虑。

Though as stargazers look up at the sky for this week's Quadrantid meteor shower, they are more likely to enjoy the beauty of the sight than feel anxious.

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