尽管它看起来像是一个陨石撞击坑，它是在一个火山穹丘硬化和逐步侵蚀中，剥离出洋葱状岩石层的结果。
Although it resembles an impact crater, it formed when a volcanic dome hardened and gradually eroded, exposing the onion-like layers of rock.
这一撞击坑是由几百万年之前一颗陨石的撞击形成的，如果当时这颗星球上有水，这些水可能已经聚集到了撞击坑里，使其变成一个蒸发湖。
The crater was formed by a meteorite impact billions of years ago, and if there were water on the planet back then, it would have accumulated in the crater, turning it into an evaporative lake.
撞击坑来源多样，比如亚利桑那州的陨石坑，但西伯利亚的爆炸发生在地面上空，摧毁了爆炸中心数千公里的树木。
Craters form in some cases, such as Meteor Crater in Arizona, but in many cases, including Siberia, impactors explode far above the ground.
这个行星的表面布满了小块陨石留下的撞击坑。
Small meteorites have left impact craters all over the planet's surface.
这个行星的表面布满了小块陨石留下的撞击坑。
Small meteorites have left impact craters all over the planet's surface.
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