noun
lunar rover; Moon rover
A vehicle designed to move across the surface of the Moon, used in space exploration contexts.
月面探査車が月の裏側の画像を送ってきた。
The lunar rover sent back images of the far side of the Moon.
探査車 is a general term for an exploration rover (e.g., Mars rover), while 月面探査車 specifically refers to a lunar rover.
Compound of 月面 (lunar surface) + 探査 (exploration) + 車 (vehicle).