Mars probe; Mars rover; Mars lander
General term for any unmanned spacecraft sent to explore Mars, including orbiters, landers, and rovers.
See also: 宇宙探査機
NASA's Mars probe sent back images of the Martian surface.
The Mars rover Perseverance landed on Mars in 2021.
宇宙探査機 is a broader term for any space probe, while 火星探査機 specifically targets Mars.
Compound of 火星 (Mars) + 探査機 (probe, explorer).