For 3 days in 1986 , the earth passed through the tail of a mysterious comet.

The star captured a comet.

那颗恒星捕获了一颗彗星.

The meteors are debris from this comet that enter Earth's atmosphere and vaporize as they fall.

流星雨是哈雷彗星在穿越地球大气层时掉落的碎片在汽化而成的.

Recently they have discovered a comet.

最近他们发现了一颗彗星.

Comet tails are millions of kilometers long.

彗尾的长度可达数百万公里.

In addition, five probes were sent to rendezvous with Halley's comet.

另外, 向哈雷丰厚生汇合的地方发射了五个探测器.

If anyone sees a great comet plunging toward the sun, it isn't me.

如果有什么人看见一颗巨大的彗星飞向太阳, 那不是我.

This spectacular composite image shows how the coma and tail of Comet Holmes have changed.

这张壮观的组合影像显示霍姆斯彗星的彗发与彗尾的变化情形.

Haley's comet was shooting across the sky.

哈雷彗星飞快地穿过天空.

Which annalistic style book in ancient China leaving the earliest record about Halley's Comet?

在中国古代哪本编年史书中留下了关于哈雷彗星最早的记载?

A newfound comet is heading towards the sun. It will likely not survive.

一颗新近被发现的彗星正一门心思地向太阳冲去, 可能小命难保.

It is a member of the Kreutz Group, as Subfragment I, split from an earlier comet.

可也可能是更早分裂的一颗彗星所组成的克鲁兹族彗星的一员.

What happened the games began, a comet appeared in the sky.

在比赛开始后, 天空出现了一刻彗星.

In that way, Pluto acts like a comet.

也就是说, 冥王星的行为像一个彗星.

Whether a cometary outburst with a jet can cause observable short-term non gravitational effect is investigated.

探讨伴有喷流的彗星爆发是否造成可观测的非引力效应.

We just released the findings from our preliminary analysis on the cometary side.

我们刚刚发表了来自彗星尘埃初步分析的发现.

The cometary ejection play a crucial role in formation and evolution of the meteoroid stream.

彗星的喷发速度在流星群的演化过程中起着重要作用.

This cometary debris – bits of ice – create a meteor shower.

这些彗星的残骸——少量的冰——形成了流星雨.

So the cometary dust work had to take priority.

也因此彗星尘埃的工作获得了优先.

We need to study more comets.

我们需要研究更多的首星.

Comets are usually made of ice and rock.

彗星通常是由岩石和冰构成的.