But this is a part of solar system history that's not well-preserved here on Earth.

但这是太阳系历史的一部分，在地球上没有得到很好的保存。

Andean agriculture, food systems, history, community, and identity.

安第斯农业、粮食系统、历史、 社区和身份的骄傲和文化象征。

Scientists with European Space Agency say their Rosetta mission is trying to answer very big questions about the solar system's history.

欧洲太空总署的科学家们表示他们的罗塞塔号任务就是要揭开关于太阳系历史的重大谜团。