This is one of the hallmarks of impact craters.

陨石坑都有这样的特。

The site of a lake formed more than 3.5 billion years ago.

这个陨石坑形成35亿年前。

This crater hints at the size of the explosion in western Ghana.

这个陨石坑暗示了加纳西部爆炸的规模。

So we are now approaching the crater.

我们现接近陨石坑了。

And it included rock samples taken right next to the crater village.

其中包括陨石坑村附近采集的岩石样本。

The young Earth was once completely covered by impact craters.

年轻的地球曾经完全被陨石坑覆盖。

Double craters are common too, probably formed when binary asteroids hit the Moon.

双陨石坑也很常见，可能是双子小行星撞击球时形成的。

What was missing from the story, though, was a suitable crater.

只不过这个故事里还缺一个部分—一个合适的陨石坑。

Scientists will compare samples taken from salda to the suspected carbonate materials detected at Jezreel.

科学家们将把从萨尔达采集的样本与耶斯列陨石坑发现的可疑碳酸盐物质进行比较。

Nobile Crater was formed through a crash with a space object.

诺布尔陨石坑是球与一个太空物体相撞而形成的。

The study could lead to a greater understanding about how craters are formed in general.

这项研究将有助人们更好地了解陨石坑是如何形成的。

My surface is made of stone, covered in craters you see.

我的表面是石头，被陨石坑覆盖。

And many of the shadowy shapes Galileo saw we later realized were impact craters.

伽利略看到的许多模糊的形状我们后来意识到是陨石坑。

Well, a crater ridge on Vesta, a large asteroid, is around 19 kilometers high.

嗯，大行星灶神星上的陨石坑脊大约有 19 公里高。

The Curiosity rover has been exploring Mars' huge Gale crater since 2012.

好奇号火星车自2012年以来一直探索火星巨大的盖尔陨石坑。

This hexagonal evidence suggests there were long dry periods in the Gale Crater area.

这一六边形证据表明盖尔陨石坑地区曾有过长时间的干旱。

That, he notes, is how the moon got all its craters.

他指出，这就是球上所有陨石坑的形成原因。

In Mexico, researchers have drilled rock cores from the Chicxulub crater.

墨西哥，研究人员从希克苏鲁伯陨石坑钻出了岩心。

The launch also reportedly created several large craters around the area.

据报道，发射地区周围形成了几个巨大的陨石坑。

Pan left and you can see another crater estimated to be three miles wide.

往左移动，你可以看到另一个约3英里宽的陨石坑。