Description: 撞击坑是太阳系中行星、卫星或其他固体小天体表面的凹陷。撞击坑是由较小的天体（陨石）高速撞击形成的。由于缺乏大气层，月球上布满了​​撞击坑。地球上厚厚的大气层阻止了许多流星到达地面。美国亚利桑那州的流星坑就是地球上撞击坑的一个例子。

Related Terms:

• 环形山

Term and definition status: The original definition of this term in English have been approved by a research astronomer and a teacher
The translation of this term and its definition is still awaiting approval

The OAE Multilingual Glossary is a project of the IAU Office of Astronomy for Education (OAE) in collaboration with the IAU Office of Astronomy Outreach (OAO). The terms and definitions were chosen, written and reviewed by a collective effort from the OAE, the OAE Centers and Nodes, the OAE National Astronomy Education Coordinators (NAECs) and other volunteers. You can find a full list of credits here. All glossary terms and their definitions are released under a Creative Commons CC BY-4.0 license and should be credited to "IAU OAE".