摘要
NASA's Lunar Reconnaissance Orbiter(月球勘测轨道飞行器,简称LRO)detected water molecules (分子)and the behavior of the moisture over the course of a lunar day. Earth's moon was once assumed to be a dry and dusty place. But scientists discovered ice present near its poles and more recently we've learned that liquid water does exist within the lunar surface material, called regolith (风化层,土被).
出处
《大学英语》
2019年第4期F0004-F0004,共1页
College English