translation.en: It has polar caps. It has an atmosphere somewhat thinner than ours, so it has weather. So, it's very similar to some extent, and you can see some of the features on it, like the Grand Canyon on Mars, or what we call the Grand Canyon on Mars.
translation.zh: 火星有极地冰冠。有大气，比地球的要稀薄， 所以有天气变化。某些方面与地球非常类似 您可以看到类似的地形， 诸如火星上的大峡谷， 或者我们所称的火星大峡谷。