On Mercury, without that atmosphere, the asteroids and meteors smack down at full throttle.

水星上没有大气陨星直接全速撞击水星表面。

Countless meteor and asteroid impacts have left Mercury scarred with dents and crater rings.

无数陨星在水星上留下疤痕形成各样的环形山和陨石坑。

Venus has been hit hard with meteors.

金星，被陨星撞击。

The Earth is shielded from small impacting objects by this wonderful thing that we call the atmosphere.

地球不被陨星袭击全靠这神奇的大气层。

The days when the planet beat with the strong pulse that produced volcanic and tectonic Mercury-quakes, are long gone.

水星上曾经也大量陨星袭击造成火山活动和不断的地震不过，是很久之前的事了。

Who's your pick? - What's a shooting star?

你选谁？- 什么是陨星爆发？

Diamonds are formed in really extreme conditions, which is why you might find them at the sites of asteroid impacts, and even on meteorites in space.

钻石形成的条件极为特殊，所以人们可能在行星撞击的地方，甚至是太空中的陨星中发现它们。

Mercury A closer look at its terrain by scientists reveals that some of its craters could have been formed from something other than asteroids, comets and meteors.

水星科学家对其地表更近的观察后发现些坑有些不同不同于小行星，彗星和陨星的撞击坑。

I just don't want people to think that I'm the shooting star, so I can't have it, and Asher can't know that I took it.

我不想让大家觉得我是陨星爆发，所以我不能拿着它，也不能让亚设知道是我拿的。

Apart from these two possibilities, the team also suspects an event of impact cluster where the collisional breakup of a main-belt asteroid results in a period of frequent meteorite impacts.

除了这两种可能性之外，研究团队还怀疑发生过次撞击群事件，即主带小行星的碰撞破碎导致了段频繁的陨星撞击期。